Methods for producing metal carbide and hydrocarbon, and carboncontaining member
US-2026035826-A1 · Feb 5, 2026 · US
Calcium carbide
Calcium carbide · 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 | C01B32/942 |
| Official title | Calcium carbide |
| Display label | Calcium carbide |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for producing metal carbide and hydrocarbon, and carbon-containing member
US-2026035804-A1 · Feb 5, 2026 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-2025369129-A1 · Dec 4, 2025 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-12416087-B2 · Sep 16, 2025 · US
Process for pure carbon production
US-12227417-B2 · Feb 18, 2025 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-2024286974-A1 · Aug 29, 2024 · US
Porous carbon, positive electrode additive for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and method for producing porous carbon
US-2024253994-A1 · Aug 1, 2024 · US
Method for producing metal carbide, method for producing hydrocarbon, and metal carbide composition
US-2024240332-A1 · Jul 18, 2024 · US
Metal carbides and metal nitrides for a fluoride ion battery
US-11710825-B2 · Jul 25, 2023 · US
Circular carbon process
US-2023227316-A1 · Jul 20, 2023 · US
A method of preparing acetylene (c2h2)
US-2023072509-A1 · Mar 9, 2023 · US
Method Of Carbothermic Process Of Magnesium Production And Co-Production Of Calcium Carbide
US-2023049604-A1 · Feb 16, 2023 · US
Methods and apparatuses for production of carbon, carbide electrodes, and carbon compositions
US-2022248272-A1 · Aug 4, 2022 · US
Methods, apparatuses, and electrodes for carbide-to-carbon conversion with nanostructured carbide chemical compounds
US-2022235474-A1 · Jul 28, 2022 · US
Methods, apparatuses, and electrodes for carbide-to-carbon conversion with nanostructured carbide chemical compounds
US-11332833-B2 · May 17, 2022 · US
Methods and apparatuses for production of carbon, carbide electrodes, and carbon compositions
US-11306401-B2 · Apr 19, 2022 · US
Process for pure carbon production, compositions, and methods thereof
US-2021163291-A1 · Jun 3, 2021 · US
Metal Carbides and Metal Nitrides for a Fluoride Ion Battery
US-2021151755-A1 · May 20, 2021 · US
Process for pure carbon production
US-2020325022-A1 · Oct 15, 2020 · US
Process for pure carbon production
US-10696555-B2 · Jun 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B32/942?
- CPC C01B32/942 is the Cooperative Patent Classification code for “Calcium carbide.”
- How many patents are filed under CPC C01B32/942 (Calcium carbide)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C01B32/942 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).