Patent
US 9,833,748PERFORATED GRAPHENE DEIONIZATION OR DESALINATION
John B. STETSON JR.
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,833,748Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
- 30.. Canceled
Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The apparatus according to claim 31, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The apparatus according to claim 31, further comprising: a supporting membrane on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The apparatus according to claim 31, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The apparatus according to claim 31, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The apparatus according to claim 31, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The apparatus according to claim 31, wherein said source of said fluid is configured to provide a pressurized flow of said fluid. Previously presented
. Canceled
. Canceled
. Canceled
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The method according to claim 41, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The method according to claim 41, wherein a supporting membrane is disposed on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The method according to claim 41, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The method according to claim 41, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The method according to claim 41, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The method according to claim 41, wherein directing said fluid along a flow path comprises directing a pressurized fluid. Previously presented
. Canceled
. Canceled
. Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
cross-flow separation apparatus with perforated graphene sheets
separation apparatus with perforated graphene sheets (non-parallel flow path variant)
Materials described outside the worked examples.
graphene
polytetrafluoroethylene
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.6–1.2 nm | — |
Patent
Atlas literature
Patent
US 9,833,748Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
- 30.. Canceled
Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The apparatus according to claim 31, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The apparatus according to claim 31, further comprising: a supporting membrane on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The apparatus according to claim 31, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The apparatus according to claim 31, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The apparatus according to claim 31, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The apparatus according to claim 31, wherein said source of said fluid is configured to provide a pressurized flow of said fluid. Previously presented
. Canceled
. Canceled
. Canceled
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The method according to claim 41, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The method according to claim 41, wherein a supporting membrane is disposed on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The method according to claim 41, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The method according to claim 41, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The method according to claim 41, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The method according to claim 41, wherein directing said fluid along a flow path comprises directing a pressurized fluid. Previously presented
. Canceled
. Canceled
. Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
cross-flow separation apparatus with perforated graphene sheets
separation apparatus with perforated graphene sheets (non-parallel flow path variant)
Materials described outside the worked examples.
graphene
polytetrafluoroethylene
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.6–1.2 nm | — |
Patent
Atlas literature
Patent
US 9,833,748Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
- 30.. Canceled
Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The apparatus according to claim 31, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The apparatus according to claim 31, further comprising: a supporting membrane on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The apparatus according to claim 31, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The apparatus according to claim 31, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The apparatus according to claim 31, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The apparatus according to claim 31, wherein said source of said fluid is configured to provide a pressurized flow of said fluid. Previously presented
. Canceled
. Canceled
. Canceled
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The method according to claim 41, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The method according to claim 41, wherein a supporting membrane is disposed on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The method according to claim 41, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The method according to claim 41, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The method according to claim 41, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The method according to claim 41, wherein directing said fluid along a flow path comprises directing a pressurized fluid. Previously presented
. Canceled
. Canceled
. Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
cross-flow separation apparatus with perforated graphene sheets
separation apparatus with perforated graphene sheets (non-parallel flow path variant)
Materials described outside the worked examples.
graphene
polytetrafluoroethylene
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.6–1.2 nm | — |
Patent
Atlas literature
Patent
US 9,833,748Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
- 30.. Canceled
Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The apparatus according to claim 31, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The apparatus according to claim 31, further comprising: a supporting membrane on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The apparatus according to claim 31, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The apparatus according to claim 31, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The apparatus according to claim 31, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The apparatus according to claim 31, wherein said source of said fluid is configured to provide a pressurized flow of said fluid. Previously presented
. Canceled
. Canceled
. Canceled
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path substantially parallel to said at least one sheet of graphene, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
The method according to claim 41, wherein said plural perforated apertures are sized in a range of 0.6 to 1.2 nanometers. Previously presented
The method according to claim 41, wherein a supporting membrane is disposed on a side of said at least one sheet of graphene opposite said flow path, said supporting membrane selected from the group consisting of polytetrafluoroethylene, perforated polycarbonate film, and sintered porous metal, said supporting membrane perforated with a plurality of apertures. Previously presented
The method according to claim 41, wherein said apertures are nominally spaced apart by nanometers. Previously presented
The method according to claim 41, wherein the one sheet of the plurality of sheets of graphene and the another sheet of the plurality of sheets of graphene are separated from each other. Currently amended
The method according to claim 41, wherein the selected components comprise at least one of gasses, particulates, solutes, molecules, or hydrocarbons. Previously presented
The method according to claim 41, wherein directing said fluid along a flow path comprises directing a pressurized fluid. Previously presented
. Canceled
. Canceled
. Canceled
A separation apparatus, comprising: at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of a fluid and to disallow passage of selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and a source of said fluid directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
A method for separating selected components from a fluid, comprising: directing said fluid to at least one sheet of graphene, said at least one sheet of graphene with plural perforated apertures having a desired size to allow passage of the fluid and to disallow passage of the selected components in the fluid, said at least one sheet of graphene having a first side and a second side opposite the first side; and directing said fluid along a flow path, the fluid flowing on to a first surface of the first side of said at least one sheet of graphene so that a portion of the fluid flows to the second side of said at least one graphene sheet through said plural perforated apertures while the disallowed selected components in the fluid are prevented from flowing through the perforated apertures, wherein a length of a flow path through the apertures of a sheet of the at least one sheet of graphene is equal to a thickness of the sheet of the at least one sheet of graphene, wherein said at least one sheet of graphene comprises a plurality of sheets of graphene, wherein apertures in one sheet of the plurality of sheets of graphene have a different size than apertures in another sheet of the plurality of sheets of graphene. Currently amended
Layer stacks claimed or described, ordered top of device to substrate.
cross-flow separation apparatus with perforated graphene sheets
separation apparatus with perforated graphene sheets (non-parallel flow path variant)
Materials described outside the worked examples.
graphene
polytetrafluoroethylene
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.6–1.2 nm | — |
perforated polycarbonate film
sintered porous metal
perforated polycarbonate film
sintered porous metal
perforated polycarbonate film
sintered porous metal
perforated polycarbonate film
sintered porous metal