Method for production of elemental sulfur by part or fully catalytic oxidation of claus tail gas
US-2022234891-A1 · Jul 28, 2022 · US
by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process · 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 | C01B17/0404 |
| Official title | {by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process} |
| Display label | by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 11 |
| 2018 | 14 |
| 2019 | 12 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes and systems for high H2S gas processing having reduced sulfur production
US-11319792-B2 · May 3, 2022 · US
Device and method for desulfurizing natural gas
US-2021253966-A1 · Aug 19, 2021 · US
Device and method for desulfurizing crude oil
US-2021246378-A1 · Aug 12, 2021 · US
Systems and methods for degassing of sulfur
US-11034583-B2 · Jun 15, 2021 · US
Method for production of sulfur and sulfuric acid
US-10981788-B2 · Apr 20, 2021 · US
Helium recovery from gaseous streams
US-2021031139-A1 · Feb 4, 2021 · US
Process for producing a purified gas stream
US-10888816-B2 · Jan 12, 2021 · US
Systems and methods to remove mercaptans from sour gas using membranes
US-10843129-B2 · Nov 24, 2020 · US
Method for production of sulfur and sulfuric acid
US-2020317519-A1 · Oct 8, 2020 · US
Helium recovery from gaseous streams
US-10765995-B2 · Sep 8, 2020 · US
Thermal stage and reduction absorption sulfur recovery process
US-2020277186-A1 · Sep 3, 2020 · US
Systems and methods for separating hydrogen sulfide from carbon dioxide in a high-pressure mixed stream
US-10569219-B2 · Feb 25, 2020 · US
Process for producing a purified gas stream
US-2020047117-A1 · Feb 13, 2020 · US
Processes and systems for high h2s gas processing having reduced sulfur production
US-2019383128-A1 · Dec 19, 2019 · US
Extended thermal stage sulfur recovery process
US-10508034-B2 · Dec 17, 2019 · US
Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology
US-10508033-B2 · Dec 17, 2019 · US
Integrated system and method for removing acid gas from a gas stream
US-2019352177-A1 · Nov 21, 2019 · US
Enhancement of claus tail gas treatment by sulfur dioxide-selective membrane technology and sulfur dioxide-selective absorption technology
US-10479684-B2 · Nov 19, 2019 · US
Integrated system and method for removing acid gas from a gas stream
US-10414649-B2 · Sep 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B17/0404?
- CPC C01B17/0404 is the Cooperative Patent Classification code for “by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process.”
- How many patents are filed under CPC C01B17/0404 (by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C01B17/0404 growing?
- Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).