Direct hydrogenation of metal carbonate and related salts to methanol, methane and metal hydroxide
US-2025236575-A1 · Jul 24, 2025 · US
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the hetero-atom being an alkali metal atom
the hetero-atom being an alkali metal atom · 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 | C07C1/328 |
| Official title | {the hetero-atom being an alkali metal atom} |
| Display label | the hetero-atom being an alkali metal atom |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lithium carbide material
US-2025136533-A1 · May 1, 2025 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2024383804-A1 · Nov 21, 2024 · US
Systems and methods for preparation of highly reactive alkali metal dendrites for the synthesis of organolithium reagents
US-2024025925-A1 · Jan 25, 2024 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2023339807-A1 · Oct 26, 2023 · US
(6Z,9Z)-6,9-dodecadien-1-yne and a process for preparing the same
US-11780791-B2 · Oct 10, 2023 · US
Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals
US-11718558-B2 · Aug 8, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2022411328-A1 · Dec 29, 2022 · US
(6z,9z)-6,9-dodecadien-1-yne and a process for preparing the same
US-2022332667-A1 · Oct 20, 2022 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2021070656-A1 · Mar 11, 2021 · US
Thermochemical ammonia and hydrocarbons
US-10315967-B2 · Jun 11, 2019 · US
Silicon-based cross coupling agents and methods of their use
US-9850261-B2 · Dec 26, 2017 · US
Silicon-based cross coupling agents and methods of their use
US-2017210766-A1 · Jul 27, 2017 · US
Thermochemical ammonia and hydrocarbons
US-2015315032-A1 · Nov 5, 2015 · US