Pretreatment of the hydrogen sulfide containing gases · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01B17/0408 |
| Official title | {Pretreatment of the hydrogen sulfide containing gases} |
| Display label | Pretreatment of the hydrogen sulfide containing gases |
| Total patents | 68 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 2 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 4 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11932479-B2 · Mar 19, 2024 · US
US-11826700-B2 · Nov 28, 2023 · US
US-11708267-B2 · Jul 25, 2023 · US
US-2023183066-A1 · Jun 15, 2023 · US
US-2023081569-A1 · Mar 16, 2023 · US
US-11535515-B2 · Dec 27, 2022 · US
US-11530131-B1 · Dec 20, 2022 · US
US-11484826-B2 · Nov 1, 2022 · US
US-11413574-B2 · Aug 16, 2022 · US
US-2022194794-A1 · Jun 23, 2022 · US
US-11325065-B2 · May 10, 2022 · US
US-2021323819-A1 · Oct 21, 2021 · US
US-2021269231-A1 · Sep 2, 2021 · US
US-2021245095-A1 · Aug 12, 2021 · US
US-11071944-B2 · Jul 27, 2021 · US
US-2021053827-A1 · Feb 25, 2021 · US
US-10905996-B2 · Feb 2, 2021 · US
US-10875769-B2 · Dec 29, 2020 · US
US-2020360854-A1 · Nov 19, 2020 · US
US-2020255291-A1 · Aug 13, 2020 · US
Answers are generated from the same data shown on this page.