Patent
US 10,995,002LARGE SCALE OXIDIZED GRAPHENE PRODUCTION FOR INDUSTRIAL APPLICATIONS
Richard Blair
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,995,002Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making graphene oxide, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V to oxidize the graphite; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene oxide flakes, wherein the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene oxide flakes and water; and precipitating and dr y ing the graphene oxide flakes,. Currently amended
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill. Previously presented
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill, and the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed A tt ritor or an Attritor. Previously presented
The method of claim 1, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C₁O 2, or H₂₀ 2. Previously presented
The method of claim 1, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 1, wherein the pH of the water containing the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 1, wherein the pH of the resulting mixture of water and graphene oxide flakes is about 7. Previously presented
The method of claim 1, wherein 1 % to 15% of the graphite is oxidized to become the graphene oxide flakes. Previously presented
The method of claim 1, further consisting of the step of precipitating any remaining graphite by increasing the pH of the resulting water and graphene oxide flakes mixture above pH 9, or below a pH of 3. Currently amended
. Canceled
A method of making graphene flakes and graphene oxide flakes, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene flakes and graphene oxide flakes, wherein the graphene flakes and the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene flakes [[oxide]], graphene oxide flakes, and water; and precipitating and drying the graphene flakes and the graphene oxide flakes,. Currently amended
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill. Previously presented
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill, wherein the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed Attritor or an Attritor. Previously presented
The method of claim 11, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C 10 2, or H 2 0 2. Previously presented
The method of claim 11, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 11, wherein the pH of the water containing the graphene flakes and the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 11, wherein the pH of oxide flakes mixture is about 7. Previously presented
The method of claim 11, wherein 1 % to 15% graphene oxide flakes. Previously presented
The method of claim 11, further consisting of by increasing the pH of the resulting water, graphene above pH 9, or below pH 3. Currently amended
. Canceled
2 1-22.. Canceled
Canceled the resulting water, graphene flakes and graphene of the graphite is oxidized to become the step of precipitating any remaining graphite flakes, and graphene oxide flakes mixture
Materials described outside the worked examples.
graphite
C
graphene oxide flakes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene breaking strength relative to steel | 200 times greater than steel | C |
graphene tensile modulus | 1 TPa |
Patent
Atlas literature
Patent
US 10,995,002Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making graphene oxide, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V to oxidize the graphite; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene oxide flakes, wherein the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene oxide flakes and water; and precipitating and dr y ing the graphene oxide flakes,. Currently amended
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill. Previously presented
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill, and the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed A tt ritor or an Attritor. Previously presented
The method of claim 1, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C₁O 2, or H₂₀ 2. Previously presented
The method of claim 1, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 1, wherein the pH of the water containing the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 1, wherein the pH of the resulting mixture of water and graphene oxide flakes is about 7. Previously presented
The method of claim 1, wherein 1 % to 15% of the graphite is oxidized to become the graphene oxide flakes. Previously presented
The method of claim 1, further consisting of the step of precipitating any remaining graphite by increasing the pH of the resulting water and graphene oxide flakes mixture above pH 9, or below a pH of 3. Currently amended
. Canceled
A method of making graphene flakes and graphene oxide flakes, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene flakes and graphene oxide flakes, wherein the graphene flakes and the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene flakes [[oxide]], graphene oxide flakes, and water; and precipitating and drying the graphene flakes and the graphene oxide flakes,. Currently amended
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill. Previously presented
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill, wherein the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed Attritor or an Attritor. Previously presented
The method of claim 11, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C 10 2, or H 2 0 2. Previously presented
The method of claim 11, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 11, wherein the pH of the water containing the graphene flakes and the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 11, wherein the pH of oxide flakes mixture is about 7. Previously presented
The method of claim 11, wherein 1 % to 15% graphene oxide flakes. Previously presented
The method of claim 11, further consisting of by increasing the pH of the resulting water, graphene above pH 9, or below pH 3. Currently amended
. Canceled
2 1-22.. Canceled
Canceled the resulting water, graphene flakes and graphene of the graphite is oxidized to become the step of precipitating any remaining graphite flakes, and graphene oxide flakes mixture
Materials described outside the worked examples.
graphite
C
graphene oxide flakes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene breaking strength relative to steel | 200 times greater than steel | C |
graphene tensile modulus | 1 TPa |
Patent
Atlas literature
Patent
US 10,995,002Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making graphene oxide, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V to oxidize the graphite; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene oxide flakes, wherein the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene oxide flakes and water; and precipitating and dr y ing the graphene oxide flakes,. Currently amended
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill. Previously presented
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill, and the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed A tt ritor or an Attritor. Previously presented
The method of claim 1, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C₁O 2, or H₂₀ 2. Previously presented
The method of claim 1, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 1, wherein the pH of the water containing the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 1, wherein the pH of the resulting mixture of water and graphene oxide flakes is about 7. Previously presented
The method of claim 1, wherein 1 % to 15% of the graphite is oxidized to become the graphene oxide flakes. Previously presented
The method of claim 1, further consisting of the step of precipitating any remaining graphite by increasing the pH of the resulting water and graphene oxide flakes mixture above pH 9, or below a pH of 3. Currently amended
. Canceled
A method of making graphene flakes and graphene oxide flakes, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene flakes and graphene oxide flakes, wherein the graphene flakes and the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene flakes [[oxide]], graphene oxide flakes, and water; and precipitating and drying the graphene flakes and the graphene oxide flakes,. Currently amended
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill. Previously presented
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill, wherein the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed Attritor or an Attritor. Previously presented
The method of claim 11, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C 10 2, or H 2 0 2. Previously presented
The method of claim 11, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 11, wherein the pH of the water containing the graphene flakes and the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 11, wherein the pH of oxide flakes mixture is about 7. Previously presented
The method of claim 11, wherein 1 % to 15% graphene oxide flakes. Previously presented
The method of claim 11, further consisting of by increasing the pH of the resulting water, graphene above pH 9, or below pH 3. Currently amended
. Canceled
2 1-22.. Canceled
Canceled the resulting water, graphene flakes and graphene of the graphite is oxidized to become the step of precipitating any remaining graphite flakes, and graphene oxide flakes mixture
Materials described outside the worked examples.
graphite
C
graphene oxide flakes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene breaking strength relative to steel | 200 times greater than steel | C |
graphene tensile modulus | 1 TPa |
Patent
Atlas literature
Patent
US 10,995,002Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making graphene oxide, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V to oxidize the graphite; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene oxide flakes, wherein the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene oxide flakes and water; and precipitating and dr y ing the graphene oxide flakes,. Currently amended
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill. Previously presented
The method of claim 1, wherein the step of mechanically exfoliating the graphite into the graphene oxide flakes is done in a stirred media mill, and the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed A tt ritor or an Attritor. Previously presented
The method of claim 1, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C₁O 2, or H₂₀ 2. Previously presented
The method of claim 1, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 1, wherein the pH of the water containing the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 1, wherein the pH of the resulting mixture of water and graphene oxide flakes is about 7. Previously presented
The method of claim 1, wherein 1 % to 15% of the graphite is oxidized to become the graphene oxide flakes. Previously presented
The method of claim 1, further consisting of the step of precipitating any remaining graphite by increasing the pH of the resulting water and graphene oxide flakes mixture above pH 9, or below a pH of 3. Currently amended
. Canceled
A method of making graphene flakes and graphene oxide flakes, consisting of: placing graphite into water containing an oxidizing agent, wherein said oxidizing agent is at a concentration at which it has an oxidation potential less than 2V; mechanically exfoliating the graphite and simultaneously oxidizing the graphite into graphene flakes and graphene oxide flakes, wherein the graphene flakes and the graphene oxide flakes are flat; wherein no additional cooling, processing, or purification is required to produce a resulting mixture consisting of the graphene flakes [[oxide]], graphene oxide flakes, and water; and precipitating and drying the graphene flakes and the graphene oxide flakes,. Currently amended
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill. Previously presented
The method of claim 11, wherein the step of mechanically exfoliating the graphite is done in a stirred media mill, wherein the stirred media mill is an Attrition mill, a dry grind Attritor, a wet grind Attritor, a regular speed Attritor, a high speed Attritor or an Attritor. Previously presented
The method of claim 11, wherein the oxidizing agent is C O 2, 0 2, steam, N 2 0, NO, N O 2, 0 3, C 10 2, or H 2 0 2. Previously presented
The method of claim 11, wherein the oxidizing agent is aqueous or non- aqueous. Original
The method of claim 11, wherein the pH of the water containing the graphene flakes and the graphene oxide flakes is from pH 2 to pH 9. Previously presented
The method of claim 11, wherein the pH of oxide flakes mixture is about 7. Previously presented
The method of claim 11, wherein 1 % to 15% graphene oxide flakes. Previously presented
The method of claim 11, further consisting of by increasing the pH of the resulting water, graphene above pH 9, or below pH 3. Currently amended
. Canceled
2 1-22.. Canceled
Canceled the resulting water, graphene flakes and graphene of the graphite is oxidized to become the step of precipitating any remaining graphite flakes, and graphene oxide flakes mixture
Materials described outside the worked examples.
graphite
C
graphene oxide flakes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene breaking strength relative to steel | 200 times greater than steel | C |
graphene tensile modulus | 1 TPa |
oxidizing agent
graphene spring constant (AFM suspended sheet) | — | C |
graphene Young's modulus (AFM suspended sheet) | 0.5 TPa | C |
Thickness | 0.3–2 mm | — |
Voltage | ≤ 2 V | — |
Voltage | ≥ 2 V | — |
oxidizing agent
graphene spring constant (AFM suspended sheet) | — | C |
graphene Young's modulus (AFM suspended sheet) | 0.5 TPa | C |
Thickness | 0.3–2 mm | — |
Voltage | ≤ 2 V | — |
Voltage | ≥ 2 V | — |
oxidizing agent
graphene spring constant (AFM suspended sheet) | — | C |
graphene Young's modulus (AFM suspended sheet) | 0.5 TPa | C |
Thickness | 0.3–2 mm | — |
Voltage | ≤ 2 V | — |
Voltage | ≥ 2 V | — |
oxidizing agent
graphene spring constant (AFM suspended sheet) | — | C |
graphene Young's modulus (AFM suspended sheet) | 0.5 TPa | C |
Thickness | 0.3–2 mm | — |
Voltage | ≤ 2 V | — |
Voltage | ≥ 2 V | — |