Process for pure carbon production
US-12227417-B2 · Feb 18, 2025 · US
This page is not indexed by search engines while we improve data quality.
by chlorination of alkaline-earth metal compounds
by chlorination of alkaline-earth metal compounds · 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 | C01F11/28 |
| Official title | by chlorination of alkaline-earth metal compounds |
| Display label | by chlorination of alkaline-earth metal compounds |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for pure carbon production, compositions, and methods thereof
US-2021163291-A1 · Jun 3, 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
Process for pure carbon production, compositions, and methods thereof
US-10494264-B2 · Dec 3, 2019 · US
Conversion of metal carbonate into metal chloride
US-10280090-B2 · May 7, 2019 · US
Process for pure carbon production
US-2019119117-A1 · Apr 25, 2019 · US
Process for pure carbon production, compositions, and methods thereof
US-2018370805-A1 · Dec 27, 2018 · US
Process for pure carbon production
US-10144648-B2 · Dec 4, 2018 · US
Process for pure carbon production, compositions, and methods thereof
US-10035709-B2 · Jul 31, 2018 · US
Process for pure carbon production, compositions, and methods thereof
US-2017320742-A1 · Nov 9, 2017 · US
Process for pure carbon production
US-2017320741-A1 · Nov 9, 2017 · US
Conversion of Metal Carbonate into Metal Chloride
US-2017001875-A1 · Jan 5, 2017 · US
Process for Pure Carbon Production, Compositions, and Methods Thereof
US-2016002049-A1 · Jan 7, 2016 · US