Method for preparing nitrogen/sulfur-doped activated carbon
US-12351465-B1 · Jul 8, 2025 · US
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Compounds containing carbon and sulfur, e.g. thiophosgene
Compounds containing carbon and sulfur, e.g. thiophosgene · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B32/70 |
| Official title | Compounds containing carbon and sulfur, e.g. thiophosgene |
| Display label | Compounds containing carbon and sulfur, e.g. thiophosgene |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organic sulfur material, electrode, and lithium-ion secondary batteries, and producing method
US-12286506-B2 · Apr 29, 2025 · US
Organic sulfur material, electrode, and lithium-ion secondary batteries, and producing method
US-11876228-B2 · Jan 16, 2024 · US
Process for the preparation of methyl mercaptan
US-11608315-B2 · Mar 21, 2023 · US
Method of synthesizing porous composite including single atom metal catalysts and nitrogen atoms in hierarchical carbon material from carbon dioxide containing gas
US-2023055011-A1 · Feb 23, 2023 · US
Organic sulfur material, electrode, and lithium-ion secondary batteries, and producing method
US-2021324115-A1 · Oct 21, 2021 · US
Organic sulfur material, electrode, and lithium-ion secondary batteries, and producing method
US-2021328224-A1 · Oct 21, 2021 · US
Organic sulfur material and method for producing same
US-10906869-B2 · Feb 2, 2021 · US
Process for the preparation of methyl mercaptan
US-2020331852-A1 · Oct 22, 2020 · US
Cathode active material for lithium-sulfur battery, comprising metal sulfide nanoparticles, and method for producing same
US-10770727-B2 · Sep 8, 2020 · US
Carbon sulfur material and method for producing same
US-10710960-B2 · Jul 14, 2020 · US
Cathode active material for lithium-sulfur battery, comprising metal sulfide nanoparticles, and method for producing same
US-2019267625-A1 · Aug 29, 2019 · US
Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells
US-10044031-B2 · Aug 7, 2018 · US
Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells
US-2018138504-A1 · May 17, 2018 · US
Organic sulfur material and method for producing same
US-2018072665-A1 · Mar 15, 2018 · US
Organic sulfur material and method for producing same
US-2018065927-A1 · Mar 8, 2018 · US
Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells
US-9853284-B2 · Dec 26, 2017 · US
Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells
US-2017294646-A1 · Oct 12, 2017 · US
Graphene oxide as a sulfur immobilizer in high performance lithium/sulfur cells
US-9673452-B2 · Jun 6, 2017 · US
Method for preparing sulfur-carbon composite by dual dry complexation
US-2015340688-A1 · Nov 26, 2015 · US