Patent
US 10,490,314GR APHENE OXIDE FREE-STA NDIN G FILM AND METHODS FOR SHIELDING
Ahmed A. AL-GHAMDI
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,490,314Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
FIGS. 2 and 3), representing a number of stacked 7 460242 US₈ layers of graphene oxide nanosheets oriented parallel and perpendicular to the film surface. The …
FIG. 4, graphene oxide nanosheets were synthesized from graphite by arc-discharge in a glass ar c reactor comprisin g an anode, which was a graphite rod of 5 …
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A free-standing film that absorbs and/or reflects electromagnetic radiation having a frequency from 1 GHz to 12 GHz, comprising: stacked layers of graphene oxide nanosheets oriented parallel to the film surface and stacked layers of graphene oxide nanosheets oriented perpendicular to the film surface wherein the g r aphene oxide nanosheets have a carbon to ox y gen (C/O) ratio of 1.2 to 2.5: and wherein the film surface contains wrinkles, and wherein the wrinkles have a height, measured from a basal plane of the film surface to a top of the wrinkles, ranging from 0.5 to 2.5 nm. Currently amended
The free-standing film of claim 1, wherein said graphene oxide nanosheets have an average thickness of from 4 to 8 nm. Previously presented
An electrical or electronic device covered with the free-standing film of claim 1. Original
An electromagnetic interference shielding gasket comprising the free-standing film of claim 1. Original
A method for making the film of claim 1, the method comprising: forming grap h ene oxide by arc-discharge between graphite electrodes in the presence of oxygen gas to form a graphene oxide soot, suspending the graphene oxide soot in water to form a colloid, depositing the colloid onto a substrate to form a wet paper, and drying the wet paper to form the film. Original
A method of shielding electromagnetic radiation by using the free-standing film of claim 1, the method comprising: enclosing and/or encapsulating an electromagnetic radiation generating source with said free-standing film to shield electromagnetic radiation. Original
The free-standing film of claim 1, wherein the graphene oxide nanosheets are not doped. Previously presented
The free-standing film of claim 1, which contains no graphene. Previously presented
The free-standing film of claim 1, which consists of the stacked layers of graphene oxide nanosbeets. Previously presented
Claims 3-7. Canceled
Canceled
Claims 21-23. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide free-standing film
electromagnetic interference shielding gasket
Materials described outside the worked examples.
graphene oxide nanosheets
graphite electrodes
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 nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Emi Shielding Effectiveness | ≥60 dB | graphene oxide nanosheets |
Emi Shielding Effectiveness | ≥70 dB |
Related documents with shared materials, methods, properties, or citations.
HIGH-THROUGHPUT IMAGING OF GRAPHENE BASED SHEETS BY FLUORESCENCE QUENCHING MICROSCOPY AND APPLICATIONS OF SAME
Environmentally benign graphite intercalation compound composition for exfoliated graphite, flexible graphite, and nano-scaled graphene platelets
Patent
Atlas literature
Patent
US 10,490,314Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
FIGS. 2 and 3), representing a number of stacked 7 460242 US₈ layers of graphene oxide nanosheets oriented parallel and perpendicular to the film surface. The …
FIG. 4, graphene oxide nanosheets were synthesized from graphite by arc-discharge in a glass ar c reactor comprisin g an anode, which was a graphite rod of 5 …
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A free-standing film that absorbs and/or reflects electromagnetic radiation having a frequency from 1 GHz to 12 GHz, comprising: stacked layers of graphene oxide nanosheets oriented parallel to the film surface and stacked layers of graphene oxide nanosheets oriented perpendicular to the film surface wherein the g r aphene oxide nanosheets have a carbon to ox y gen (C/O) ratio of 1.2 to 2.5: and wherein the film surface contains wrinkles, and wherein the wrinkles have a height, measured from a basal plane of the film surface to a top of the wrinkles, ranging from 0.5 to 2.5 nm. Currently amended
The free-standing film of claim 1, wherein said graphene oxide nanosheets have an average thickness of from 4 to 8 nm. Previously presented
An electrical or electronic device covered with the free-standing film of claim 1. Original
An electromagnetic interference shielding gasket comprising the free-standing film of claim 1. Original
A method for making the film of claim 1, the method comprising: forming grap h ene oxide by arc-discharge between graphite electrodes in the presence of oxygen gas to form a graphene oxide soot, suspending the graphene oxide soot in water to form a colloid, depositing the colloid onto a substrate to form a wet paper, and drying the wet paper to form the film. Original
A method of shielding electromagnetic radiation by using the free-standing film of claim 1, the method comprising: enclosing and/or encapsulating an electromagnetic radiation generating source with said free-standing film to shield electromagnetic radiation. Original
The free-standing film of claim 1, wherein the graphene oxide nanosheets are not doped. Previously presented
The free-standing film of claim 1, which contains no graphene. Previously presented
The free-standing film of claim 1, which consists of the stacked layers of graphene oxide nanosbeets. Previously presented
Claims 3-7. Canceled
Canceled
Claims 21-23. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide free-standing film
electromagnetic interference shielding gasket
Materials described outside the worked examples.
graphene oxide nanosheets
graphite electrodes
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 nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Emi Shielding Effectiveness | ≥60 dB | graphene oxide nanosheets |
Emi Shielding Effectiveness | ≥70 dB |
Related documents with shared materials, methods, properties, or citations.
HIGH-THROUGHPUT IMAGING OF GRAPHENE BASED SHEETS BY FLUORESCENCE QUENCHING MICROSCOPY AND APPLICATIONS OF SAME
Environmentally benign graphite intercalation compound composition for exfoliated graphite, flexible graphite, and nano-scaled graphene platelets
Patent
Atlas literature
Patent
US 10,490,314Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
FIGS. 2 and 3), representing a number of stacked 7 460242 US₈ layers of graphene oxide nanosheets oriented parallel and perpendicular to the film surface. The …
FIG. 4, graphene oxide nanosheets were synthesized from graphite by arc-discharge in a glass ar c reactor comprisin g an anode, which was a graphite rod of 5 …
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A free-standing film that absorbs and/or reflects electromagnetic radiation having a frequency from 1 GHz to 12 GHz, comprising: stacked layers of graphene oxide nanosheets oriented parallel to the film surface and stacked layers of graphene oxide nanosheets oriented perpendicular to the film surface wherein the g r aphene oxide nanosheets have a carbon to ox y gen (C/O) ratio of 1.2 to 2.5: and wherein the film surface contains wrinkles, and wherein the wrinkles have a height, measured from a basal plane of the film surface to a top of the wrinkles, ranging from 0.5 to 2.5 nm. Currently amended
The free-standing film of claim 1, wherein said graphene oxide nanosheets have an average thickness of from 4 to 8 nm. Previously presented
An electrical or electronic device covered with the free-standing film of claim 1. Original
An electromagnetic interference shielding gasket comprising the free-standing film of claim 1. Original
A method for making the film of claim 1, the method comprising: forming grap h ene oxide by arc-discharge between graphite electrodes in the presence of oxygen gas to form a graphene oxide soot, suspending the graphene oxide soot in water to form a colloid, depositing the colloid onto a substrate to form a wet paper, and drying the wet paper to form the film. Original
A method of shielding electromagnetic radiation by using the free-standing film of claim 1, the method comprising: enclosing and/or encapsulating an electromagnetic radiation generating source with said free-standing film to shield electromagnetic radiation. Original
The free-standing film of claim 1, wherein the graphene oxide nanosheets are not doped. Previously presented
The free-standing film of claim 1, which contains no graphene. Previously presented
The free-standing film of claim 1, which consists of the stacked layers of graphene oxide nanosbeets. Previously presented
Claims 3-7. Canceled
Canceled
Claims 21-23. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide free-standing film
electromagnetic interference shielding gasket
Materials described outside the worked examples.
graphene oxide nanosheets
graphite electrodes
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 nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Emi Shielding Effectiveness | ≥60 dB | graphene oxide nanosheets |
Emi Shielding Effectiveness | ≥70 dB |
Related documents with shared materials, methods, properties, or citations.
HIGH-THROUGHPUT IMAGING OF GRAPHENE BASED SHEETS BY FLUORESCENCE QUENCHING MICROSCOPY AND APPLICATIONS OF SAME
Environmentally benign graphite intercalation compound composition for exfoliated graphite, flexible graphite, and nano-scaled graphene platelets
Patent
Atlas literature
Patent
US 10,490,314Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In other embodiments, graphene oxide nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
FIGS. 2 and 3), representing a number of stacked 7 460242 US₈ layers of graphene oxide nanosheets oriented parallel and perpendicular to the film surface. The …
FIG. 4, graphene oxide nanosheets were synthesized from graphite by arc-discharge in a glass ar c reactor comprisin g an anode, which was a graphite rod of 5 …
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A free-standing film that absorbs and/or reflects electromagnetic radiation having a frequency from 1 GHz to 12 GHz, comprising: stacked layers of graphene oxide nanosheets oriented parallel to the film surface and stacked layers of graphene oxide nanosheets oriented perpendicular to the film surface wherein the g r aphene oxide nanosheets have a carbon to ox y gen (C/O) ratio of 1.2 to 2.5: and wherein the film surface contains wrinkles, and wherein the wrinkles have a height, measured from a basal plane of the film surface to a top of the wrinkles, ranging from 0.5 to 2.5 nm. Currently amended
The free-standing film of claim 1, wherein said graphene oxide nanosheets have an average thickness of from 4 to 8 nm. Previously presented
An electrical or electronic device covered with the free-standing film of claim 1. Original
An electromagnetic interference shielding gasket comprising the free-standing film of claim 1. Original
A method for making the film of claim 1, the method comprising: forming grap h ene oxide by arc-discharge between graphite electrodes in the presence of oxygen gas to form a graphene oxide soot, suspending the graphene oxide soot in water to form a colloid, depositing the colloid onto a substrate to form a wet paper, and drying the wet paper to form the film. Original
A method of shielding electromagnetic radiation by using the free-standing film of claim 1, the method comprising: enclosing and/or encapsulating an electromagnetic radiation generating source with said free-standing film to shield electromagnetic radiation. Original
The free-standing film of claim 1, wherein the graphene oxide nanosheets are not doped. Previously presented
The free-standing film of claim 1, which contains no graphene. Previously presented
The free-standing film of claim 1, which consists of the stacked layers of graphene oxide nanosbeets. Previously presented
Claims 3-7. Canceled
Canceled
Claims 21-23. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide free-standing film
electromagnetic interference shielding gasket
Materials described outside the worked examples.
graphene oxide nanosheets
graphite electrodes
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 nanosheets are in orientations that are not exactly parallel or perpendicular to the surfaces of the film, as …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Emi Shielding Effectiveness | ≥60 dB | graphene oxide nanosheets |
Emi Shielding Effectiveness | ≥70 dB |
Related documents with shared materials, methods, properties, or citations.
HIGH-THROUGHPUT IMAGING OF GRAPHENE BASED SHEETS BY FLUORESCENCE QUENCHING MICROSCOPY AND APPLICATIONS OF SAME
Environmentally benign graphite intercalation compound composition for exfoliated graphite, flexible graphite, and nano-scaled graphene platelets
graphene oxide
C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2)
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
C To O Ratio | 1.2–2.5 dimensionless | graphene oxide nanosheets |
Nanosheet Thickness | 4–8 nm | graphene oxide nanosheets |
Wrinkle Height | 0.5–2.5 nm | graphene oxide nanosheets |
C To O Ratio | 2.5 dimensionless | C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2) |
Pressure | 100–600 Torr | — |
Thickness | 1–5 mm | — |
Thickness | 1–10 mm | — |
Thickness | 100–400 mm | — |
Thickness | 0.5–2 mm | — |
Thickness | 4–10 nm | — |
Thickness | 1.5–5 nm | — |
Thickness | 0.5–5 µm | — |
Thickness | 3–40 µm | — |
Thickness | 5–30 µm | — |
Thickness | 2–3 µm | — |
Thickness | 10–20 µm | — |
Thickness | 20–900 nm | — |
Thickness | 60–700 nm | — |
Thickness | 150–400 nm | — |
Thickness | ≤ 0.2 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | 2–5 mm | — |
graphene oxide
C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2)
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
C To O Ratio | 1.2–2.5 dimensionless | graphene oxide nanosheets |
Nanosheet Thickness | 4–8 nm | graphene oxide nanosheets |
Wrinkle Height | 0.5–2.5 nm | graphene oxide nanosheets |
C To O Ratio | 2.5 dimensionless | C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2) |
Pressure | 100–600 Torr | — |
Thickness | 1–5 mm | — |
Thickness | 1–10 mm | — |
Thickness | 100–400 mm | — |
Thickness | 0.5–2 mm | — |
Thickness | 4–10 nm | — |
Thickness | 1.5–5 nm | — |
Thickness | 0.5–5 µm | — |
Thickness | 3–40 µm | — |
Thickness | 5–30 µm | — |
Thickness | 2–3 µm | — |
Thickness | 10–20 µm | — |
Thickness | 20–900 nm | — |
Thickness | 60–700 nm | — |
Thickness | 150–400 nm | — |
Thickness | ≤ 0.2 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | 2–5 mm | — |
graphene oxide
C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2)
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
C To O Ratio | 1.2–2.5 dimensionless | graphene oxide nanosheets |
Nanosheet Thickness | 4–8 nm | graphene oxide nanosheets |
Wrinkle Height | 0.5–2.5 nm | graphene oxide nanosheets |
C To O Ratio | 2.5 dimensionless | C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2) |
Pressure | 100–600 Torr | — |
Thickness | 1–5 mm | — |
Thickness | 1–10 mm | — |
Thickness | 100–400 mm | — |
Thickness | 0.5–2 mm | — |
Thickness | 4–10 nm | — |
Thickness | 1.5–5 nm | — |
Thickness | 0.5–5 µm | — |
Thickness | 3–40 µm | — |
Thickness | 5–30 µm | — |
Thickness | 2–3 µm | — |
Thickness | 10–20 µm | — |
Thickness | 20–900 nm | — |
Thickness | 60–700 nm | — |
Thickness | 150–400 nm | — |
Thickness | ≤ 0.2 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | 2–5 mm | — |
graphene oxide
C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2)
FIG. 7 is a diagram showing the apparatus system used to measure electromagnetic radiation shielding effectiveness. FI G. 8 is a graphical presentation of the …
FIG. 9 is a graphical presentation of the shielding effectiveness of a graphene oxide 5 free-standing film of varying thickness for electromagnetic radiation at …
C To O Ratio | 1.2–2.5 dimensionless | graphene oxide nanosheets |
Nanosheet Thickness | 4–8 nm | graphene oxide nanosheets |
Wrinkle Height | 0.5–2.5 nm | graphene oxide nanosheets |
C To O Ratio | 2.5 dimensionless | C₈O₄H (empirical; C/O ratio 2.5 after H₂O subtraction: C₈O3.2) |
Pressure | 100–600 Torr | — |
Thickness | 1–5 mm | — |
Thickness | 1–10 mm | — |
Thickness | 100–400 mm | — |
Thickness | 0.5–2 mm | — |
Thickness | 4–10 nm | — |
Thickness | 1.5–5 nm | — |
Thickness | 0.5–5 µm | — |
Thickness | 3–40 µm | — |
Thickness | 5–30 µm | — |
Thickness | 2–3 µm | — |
Thickness | 10–20 µm | — |
Thickness | 20–900 nm | — |
Thickness | 60–700 nm | — |
Thickness | 150–400 nm | — |
Thickness | ≤ 0.2 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | 2–5 mm | — |