Regeneration method and application of nitrogen-containing carbon catalyst
US-12440829-B2 · Oct 14, 2025 · US
Regeneration or reactivation · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J27/28 |
| Official title | Regeneration or reactivation |
| Display label | Regeneration or reactivation |
| Total patents | 27 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 4 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12440829-B2 · Oct 14, 2025 · US
US-12427509-B2 · Sep 30, 2025 · US
US-2025054708-A1 · Feb 13, 2025 · US
US-2025051167-A1 · Feb 13, 2025 · US
US-11878296-B2 · Jan 23, 2024 · US
US-2023103603-A1 · Apr 6, 2023 · US
US-2023019789-A1 · Jan 19, 2023 · US
US-2022241759-A1 · Aug 4, 2022 · US
US-11338276-B2 · May 24, 2022 · US
US-2022126280-A1 · Apr 28, 2022 · US
US-11097258-B2 · Aug 24, 2021 · US
US-2021139394-A1 · May 13, 2021 · US
US-2021060538-A1 · Mar 4, 2021 · US
US-10889765-B2 · Jan 12, 2021 · US
US-10828627-B2 · Nov 10, 2020 · US
US-2020346195-A1 · Nov 5, 2020 · US
US-2019390117-A1 · Dec 26, 2019 · US
US-10450514-B2 · Oct 22, 2019 · US
US-2019270080-A1 · Sep 5, 2019 · US
US-2019151834-A1 · May 23, 2019 · US
Answers are generated from the same data shown on this page.