Production system and method for insoluble sulfur
US-12465903-B2 · Nov 11, 2025 · US
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Insoluble sulfur (mu-sulfur)
Insoluble sulfur (mu-sulfur) · 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 | C01B17/12 |
| Official title | Insoluble sulfur (mu-sulfur) |
| Display label | Insoluble sulfur (mu-sulfur) |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production System and Method for Insoluble Sulfur
US-2023035805-A1 · Feb 2, 2023 · US
Continuous process for producing insoluble sulfur
US-11225411-B2 · Jan 18, 2022 · US
Method for the manufacture of cyclododecasulfur
US-11059722-B2 · Jul 13, 2021 · US
Continuos process for producing insoluble sulfur
US-2021198108-A1 · Jul 1, 2021 · US
Method for the manufacture of cyclododecasulfur
US-2020216316-A1 · Jul 9, 2020 · US
Method for the manufacture of cyclododecasulfur
US-2020207621-A1 · Jul 2, 2020 · US
Method for the manufacture of cyclododecasulfur
US-10611637-B2 · Apr 7, 2020 · US
Method for the manufacture of cyclododecasulfur
US-2018273382-A1 · Sep 27, 2018 · US
Method for the manufacture of cyclododecasulfur
US-10011485-B2 · Jul 3, 2018 · US
Method for the manufacture of polymeric sulfur
US-10000380-B2 · Jun 19, 2018 · US
Method for the manufacture of cyclododecasulfur
US-2017253484-A1 · Sep 7, 2017 · US
Method for the manufacture of polymeric sulfur
US-2017253483-A1 · Sep 7, 2017 · US