Production system and method for insoluble sulfur
US-12465903-B2 · Nov 11, 2025 · US
Purification, e.g. degassing
Purification, e.g. degassing · 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 | C01B17/0232 |
| Official title | {Purification, e.g. degassing} |
| Display label | Purification, e.g. degassing |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 7 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid sulfur degassing
US-2025122078-A1 · Apr 17, 2025 · US
Liquid sulfur degassing
US-12195333-B2 · Jan 14, 2025 · US
Reactor system and method thereof for degassing sulfur
US-2023416087-A1 · Dec 28, 2023 · US
Liquid sulfur degassing
US-2023339751-A1 · Oct 26, 2023 · US
System and method for resource recycling of sulfur dioxide
US-11731874-B2 · Aug 22, 2023 · US
Liquid sulfur degassing
US-11713246-B2 · Aug 1, 2023 · US
Purification of gases containing sulfur compounds
US-11607643-B2 · Mar 21, 2023 · US
System and method for resource recycling of sulfur dioxide
US-2023046206-A1 · Feb 16, 2023 · US
Production System and Method for Insoluble Sulfur
US-2023035805-A1 · Feb 2, 2023 · US
Purification of gases containing sulfur compounds
US-2022184548-A1 · Jun 16, 2022 · US
Process for reducing the hydrogen sulphide content in non-gaseous sulphur compositions using a zinc-based scavenger
US-11267705-B2 · Mar 8, 2022 · US
Purification of gases containing sulfur compounds
US-11266946-B2 · Mar 8, 2022 · US
Continuous process for producing insoluble sulfur
US-11225411-B2 · Jan 18, 2022 · US
Process for reducing the hydrogen sulphide content in non-gaseous sulphur compositions using a zinc-based scavenger
US-2021284533-A1 · Sep 16, 2021 · US
Continuos process for producing insoluble sulfur
US-2021198108-A1 · Jul 1, 2021 · US
Systems and methods for degassing of sulfur
US-11034583-B2 · Jun 15, 2021 · US
Liquid sulfur degassing
US-2020290874-A1 · Sep 17, 2020 · US
Vulcanizing composition containing cyclododecasulfur and improved cyclododecasulfur compound
US-10570218-B2 · Feb 25, 2020 · US
Purification of gases containing sulfur compounds
US-2019351366-A1 · Nov 21, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B17/0232?
- CPC C01B17/0232 is the Cooperative Patent Classification code for “Purification, e.g. degassing.”
- How many patents are filed under CPC C01B17/0232 (Purification, e.g. degassing)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC C01B17/0232 growing?
- Publication counts under this code: 7 in 2023 vs 3 in 2025 (latest complete years).