Patent
US 11,148,070SYSTEMS AND METHODS OF NANOFILTRATION USING GRAPHENE OXIDE
David K. Biegelsen
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 11,148,070Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
FIG. 2. The separation distance 106 between the porous substrates 104 is proportional to the amount of space the graphene oxide layers 102 are permitted to …
FIG. 3 illustrates a nanofiltration module or assembly 300 that includes multiple adjustable graphene oxide nanofilters for various filtration systems and/or …
FIG. 4 illustrates a nanofiltration system 400 with tangential flow filtration across an adjustable graphene oxide nanofilter 402. Within the tangential flow …
FIG. 5 illustrates a nanofiltration system 500 with tangential flow filtration across multiple adjustable graphene oxide nanofilters 502 and 504. Within the …
FIG. 6 illustrates a nanofiltration system 600 similar to the nanofiltration system 500 of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A nanofilter comprising: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than pore sizes in the first and second support plates; an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers at a set position, the at least one of the pressure and the distance set based upon a desired filtration cutoff, and a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control. Currently amended
The nanofilter of claim 1, further comprising: a seal arranged between the first and second porous plates and surrounding the graphene oxide layers. Original
The nanofilter of claim 1, further comprising: a first porous substrate filter between the graphene oxide layers and the first porous plate; and a second porous substrate filter between the graphene oxide and the second porous plate. Original
The nanofilter of claim 1, further comprising: a support frame; a first flow channel arranged upstream of the first porous plate; and a second flow channel arranged downstream of the second porous plate. Original
The nanofilter of claim 1, wherein the adjusting control is remotely operable. Original
The nanofilter of claim 1, wherein the distance between the first and second porous plates is mapped against an interlayer gap size of the graphene oxide layers. Original
The nanofiltration system of claim 1 5, wherein the adjusting control includes a fine pitch screw. Original
The nanofiltration system of claim 1 5, wherein piezo element. Original
The nanofiltration system of claim 1 5, further channel arranged tangentially to the second filter. the adjusting control includes an inch worm the adjusting control includes a spring the adjusting control includes a pneumatic comprising: a second filter; and a second flow Original
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A nanofiltration system comprising: a filter including: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than the first and second support plates; and an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers, the at least one of the pressure and the distance based upon a desired filtration cutoff, a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control; and a flow channel arranged tangentially to the filter. Currently amended
The nano fi ltration system of claim 15, wherein mount. Original
The nanofiltration system of claim 15, wherein element. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide nanofilter
nanofiltration system with tangential flow
Materials described outside the worked examples.
graphene oxide layers
porous substrate (ANOPORE/anodic aluminum oxide)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Patent
Atlas literature
Patent
US 11,148,070Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
FIG. 2. The separation distance 106 between the porous substrates 104 is proportional to the amount of space the graphene oxide layers 102 are permitted to …
FIG. 3 illustrates a nanofiltration module or assembly 300 that includes multiple adjustable graphene oxide nanofilters for various filtration systems and/or …
FIG. 4 illustrates a nanofiltration system 400 with tangential flow filtration across an adjustable graphene oxide nanofilter 402. Within the tangential flow …
FIG. 5 illustrates a nanofiltration system 500 with tangential flow filtration across multiple adjustable graphene oxide nanofilters 502 and 504. Within the …
FIG. 6 illustrates a nanofiltration system 600 similar to the nanofiltration system 500 of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A nanofilter comprising: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than pore sizes in the first and second support plates; an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers at a set position, the at least one of the pressure and the distance set based upon a desired filtration cutoff, and a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control. Currently amended
The nanofilter of claim 1, further comprising: a seal arranged between the first and second porous plates and surrounding the graphene oxide layers. Original
The nanofilter of claim 1, further comprising: a first porous substrate filter between the graphene oxide layers and the first porous plate; and a second porous substrate filter between the graphene oxide and the second porous plate. Original
The nanofilter of claim 1, further comprising: a support frame; a first flow channel arranged upstream of the first porous plate; and a second flow channel arranged downstream of the second porous plate. Original
The nanofilter of claim 1, wherein the adjusting control is remotely operable. Original
The nanofilter of claim 1, wherein the distance between the first and second porous plates is mapped against an interlayer gap size of the graphene oxide layers. Original
The nanofiltration system of claim 1 5, wherein the adjusting control includes a fine pitch screw. Original
The nanofiltration system of claim 1 5, wherein piezo element. Original
The nanofiltration system of claim 1 5, further channel arranged tangentially to the second filter. the adjusting control includes an inch worm the adjusting control includes a spring the adjusting control includes a pneumatic comprising: a second filter; and a second flow Original
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A nanofiltration system comprising: a filter including: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than the first and second support plates; and an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers, the at least one of the pressure and the distance based upon a desired filtration cutoff, a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control; and a flow channel arranged tangentially to the filter. Currently amended
The nano fi ltration system of claim 15, wherein mount. Original
The nanofiltration system of claim 15, wherein element. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide nanofilter
nanofiltration system with tangential flow
Materials described outside the worked examples.
graphene oxide layers
porous substrate (ANOPORE/anodic aluminum oxide)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Patent
Atlas literature
Patent
US 11,148,070Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
FIG. 2. The separation distance 106 between the porous substrates 104 is proportional to the amount of space the graphene oxide layers 102 are permitted to …
FIG. 3 illustrates a nanofiltration module or assembly 300 that includes multiple adjustable graphene oxide nanofilters for various filtration systems and/or …
FIG. 4 illustrates a nanofiltration system 400 with tangential flow filtration across an adjustable graphene oxide nanofilter 402. Within the tangential flow …
FIG. 5 illustrates a nanofiltration system 500 with tangential flow filtration across multiple adjustable graphene oxide nanofilters 502 and 504. Within the …
FIG. 6 illustrates a nanofiltration system 600 similar to the nanofiltration system 500 of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A nanofilter comprising: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than pore sizes in the first and second support plates; an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers at a set position, the at least one of the pressure and the distance set based upon a desired filtration cutoff, and a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control. Currently amended
The nanofilter of claim 1, further comprising: a seal arranged between the first and second porous plates and surrounding the graphene oxide layers. Original
The nanofilter of claim 1, further comprising: a first porous substrate filter between the graphene oxide layers and the first porous plate; and a second porous substrate filter between the graphene oxide and the second porous plate. Original
The nanofilter of claim 1, further comprising: a support frame; a first flow channel arranged upstream of the first porous plate; and a second flow channel arranged downstream of the second porous plate. Original
The nanofilter of claim 1, wherein the adjusting control is remotely operable. Original
The nanofilter of claim 1, wherein the distance between the first and second porous plates is mapped against an interlayer gap size of the graphene oxide layers. Original
The nanofiltration system of claim 1 5, wherein the adjusting control includes a fine pitch screw. Original
The nanofiltration system of claim 1 5, wherein piezo element. Original
The nanofiltration system of claim 1 5, further channel arranged tangentially to the second filter. the adjusting control includes an inch worm the adjusting control includes a spring the adjusting control includes a pneumatic comprising: a second filter; and a second flow Original
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A nanofiltration system comprising: a filter including: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than the first and second support plates; and an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers, the at least one of the pressure and the distance based upon a desired filtration cutoff, a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control; and a flow channel arranged tangentially to the filter. Currently amended
The nano fi ltration system of claim 15, wherein mount. Original
The nanofiltration system of claim 15, wherein element. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide nanofilter
nanofiltration system with tangential flow
Materials described outside the worked examples.
graphene oxide layers
porous substrate (ANOPORE/anodic aluminum oxide)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
Patent
Atlas literature
Patent
US 11,148,070Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
FIG. 2. The separation distance 106 between the porous substrates 104 is proportional to the amount of space the graphene oxide layers 102 are permitted to …
FIG. 3 illustrates a nanofiltration module or assembly 300 that includes multiple adjustable graphene oxide nanofilters for various filtration systems and/or …
FIG. 4 illustrates a nanofiltration system 400 with tangential flow filtration across an adjustable graphene oxide nanofilter 402. Within the tangential flow …
FIG. 5 illustrates a nanofiltration system 500 with tangential flow filtration across multiple adjustable graphene oxide nanofilters 502 and 504. Within the …
FIG. 6 illustrates a nanofiltration system 600 similar to the nanofiltration system 500 of
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A nanofilter comprising: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than pore sizes in the first and second support plates; an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers at a set position, the at least one of the pressure and the distance set based upon a desired filtration cutoff, and a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control. Currently amended
The nanofilter of claim 1, further comprising: a seal arranged between the first and second porous plates and surrounding the graphene oxide layers. Original
The nanofilter of claim 1, further comprising: a first porous substrate filter between the graphene oxide layers and the first porous plate; and a second porous substrate filter between the graphene oxide and the second porous plate. Original
The nanofilter of claim 1, further comprising: a support frame; a first flow channel arranged upstream of the first porous plate; and a second flow channel arranged downstream of the second porous plate. Original
The nanofilter of claim 1, wherein the adjusting control is remotely operable. Original
The nanofilter of claim 1, wherein the distance between the first and second porous plates is mapped against an interlayer gap size of the graphene oxide layers. Original
The nanofiltration system of claim 1 5, wherein the adjusting control includes a fine pitch screw. Original
The nanofiltration system of claim 1 5, wherein piezo element. Original
The nanofiltration system of claim 1 5, further channel arranged tangentially to the second filter. the adjusting control includes an inch worm the adjusting control includes a spring the adjusting control includes a pneumatic comprising: a second filter; and a second flow Original
Canceled
Canceled
Canceled
Canceled
Canceled
Canceled
Canceled
Canceled
A nanofiltration system comprising: a filter including: a first porous support plate; a second porous support plate; graphene oxide layers deposited between the first and the second porous support plates, wherein the graphene oxide layers have pore sizes different than the first and second support plates; and an adjusting control to allow adjustment and to set at least one of pressure and distance between the first and second porous plates to compress and constrain the graphene oxide layers, the at least one of the pressure and the distance based upon a desired filtration cutoff, a programmable controller connected to the adjusting control, the controller configured to provide the adjustment to the adjusting control based upon programmed filtration cutoff states mapped to a separate distance set by the adjusting control; and a flow channel arranged tangentially to the filter. Currently amended
The nano fi ltration system of claim 15, wherein mount. Original
The nanofiltration system of claim 15, wherein element. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide nanofilter
nanofiltration system with tangential flow
Materials described outside the worked examples.
graphene oxide layers
porous substrate (ANOPORE/anodic aluminum oxide)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1. In other embodiments, graphene oxide layers may be compressed between porous support plates, as discussed below and shown in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–100 nm | — |
graphene oxide flakes
graphene oxide flakes
graphene oxide flakes
graphene oxide flakes