Regeneration method and application of nitrogen-containing carbon catalyst
US-12440829-B2 · Oct 14, 2025 · US
using ammonia or derivatives thereof
using ammonia or derivatives thereof · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J38/08 |
| Official title | using ammonia or derivatives thereof |
| Display label | using ammonia or derivatives thereof |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 8 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Preparation of a catalyst for the oxidative esterification of methacrolein to methyl methacrylate, for extending service life
US-2024351972-A1 · Oct 24, 2024 · US
Regeneration method and application of nitrogen-containing carbon catalyst
US-2022241759-A1 · Aug 4, 2022 · US
Method for activating hydrotreating catalysts
US-11344866-B2 · May 31, 2022 · US
Desulfation method for SCR catalyst
US-11097264-B2 · Aug 24, 2021 · US
Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst
US-11000839-B2 · May 11, 2021 · US
Catalytic efficiency of flue gas filtration
US-10940471-B1 · Mar 9, 2021 · US
Method of reducing nitrogen oxide compounds
US-10843132-B2 · Nov 24, 2020 · US
A method of reducing nitrogen oxide compounds
US-2019282959-A1 · Sep 19, 2019 · US
Desulfation method for scr catalyst
US-2019083967-A1 · Mar 21, 2019 · US
Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst
US-2018353945-A1 · Dec 13, 2018 · US
Method for producing metal exchanged zeolites by solid-state ion exchange at low temperatures
US-10081010-B2 · Sep 25, 2018 · US
Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst
US-9956553-B2 · May 1, 2018 · US
Method for producing metal exchanged metallo-aluminophosphates by solid-state ion exchange at low temperatures
US-9914114-B2 · Mar 13, 2018 · US
Method for producing metal exchanged microporous materials by solid-state ion exchange
US-9895660-B2 · Feb 20, 2018 · US
Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst
US-2017368544-A1 · Dec 28, 2017 · US
Method for producing metal exchanged microporous materials by solid-state ion exchange
US-2017274322-A1 · Sep 28, 2017 · US
Solid storage media charging with ammonia for use in selective catalytic reduction
US-9724685-B2 · Aug 8, 2017 · US
System, method, and apparatus for sulfur recovery on an SCR catalyst
US-9657665-B2 · May 23, 2017 · US
Method for activating hydrotreating catalysts
US-2017120230-A1 · May 4, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J38/08?
- CPC B01J38/08 is the Cooperative Patent Classification code for “using ammonia or derivatives thereof.”
- How many patents are filed under CPC B01J38/08 (using ammonia or derivatives thereof)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B01J38/08 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).