Continuous process for sustainable production of hydrogen
US-12391547-B2 · Aug 19, 2025 · US
Chemistry & Metallurgy · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B3/105 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 12 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12391547-B2 · Aug 19, 2025 · US
US-2022332572-A1 · Oct 20, 2022 · US
US-2021261407-A1 · Aug 26, 2021 · US
US-10988378-B2 · Apr 27, 2021 · US
US-10663208-B2 · May 26, 2020 · US
US-10239036-B2 · Mar 26, 2019 · US
US-10239035-B2 · Mar 26, 2019 · US
US-10010847-B2 · Jul 3, 2018 · US
US-2018002173-A1 · Jan 4, 2018 · US
US-2017217771-A1 · Aug 3, 2017 · US
US-2015157979-A1 · Jun 11, 2015 · US
US-8974757-B2 · Mar 10, 2015 · US