Method of continuous electrochemical dinitrogen reduction
US-12571112-B2 · Mar 10, 2026 · US
Preparation of ammonia from inorganic compounds
Preparation of ammonia from inorganic 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 | C01C1/026 |
| Official title | {Preparation of ammonia from inorganic compounds} |
| Display label | Preparation of ammonia from inorganic compounds |
| Total patents | 51 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 1 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method
US-2026054245-A1 · Feb 26, 2026 · US
Device and method for continuous recovery of ammonianitrogen from aluminum ash
US-2026001112-A1 · Jan 1, 2026 · US
Processes to Clean Tail Gas from Carbon Black Production and System and Facility for Same
US-2025367600-A1 · Dec 4, 2025 · US
Thermally driven nitrogen and ammonia production
US-2025346489-A1 · Nov 13, 2025 · US
Methods of reducing dinitrogen
US-12371334-B2 · Jul 29, 2025 · US
Method of producing liquid hydrocarbons from a syngas
US-2025162962-A1 · May 22, 2025 · US
AMMONIA PRODUCTION FROM NITRATE WASTE USING PtRu-BASED CATALYST
US-2025074779-A1 · Mar 6, 2025 · US
Enhanced hydroprocessing process with ammonia and carbon dioxide recovery
US-2024400914-A1 · Dec 5, 2024 · US
Process for producing ammonia
US-2024375969-A1 · Nov 14, 2024 · US
Phototrophic purification of hydrogen sulfide containing streams
US-12115492-B2 · Oct 15, 2024 · US
Enhanced hydroprocessing process with ammonia and carbon dioxide recovery
US-12098331-B2 · Sep 24, 2024 · US
A solid-gas reaction to generate nitroxyl (hno) in the gas phase
US-2024269164-A1 · Aug 15, 2024 · US
NOx ACTIVATION TO AMMONIA
US-2024240335-A1 · Jul 18, 2024 · US
Transition metal nitrides as solid carriers for ammonia storage
US-11958752-B2 · Apr 16, 2024 · US
A method of continuous electrochemical dinitrogen reduction
US-2023272541-A1 · Aug 31, 2023 · US
Methods of reducing dinitrogen
US-2022396491-A1 · Dec 15, 2022 · US
Conversion of ammonium nitrate into useful products
US-11518685-B2 · Dec 6, 2022 · US
Ammonia production method and apparatus for ammonia production
US-11498844-B2 · Nov 15, 2022 · US
Method for ammonia recovery from contaminated water including solvay effluent and aqueous solutions
US-11453951-B1 · Sep 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01C1/026?
- CPC C01C1/026 is the Cooperative Patent Classification code for “Preparation of ammonia from inorganic compounds.”
- How many patents are filed under CPC C01C1/026 (Preparation of ammonia from inorganic compounds)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC C01C1/026 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).