Fluoride ion cleaning systems and methods including post-retort fluid stream processing
US-12546015-B2 · Feb 10, 2026 · US
Separation; Purification
Separation; Purification · 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 | C01B7/195 |
| Official title | {Separation; Purification} |
| Display label | Separation; Purification |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 10 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Recovery of fluoride from fluoride-containing waste water through membrane separation
US-2025382203-A1 · Dec 18, 2025 · US
Methods for recovering hydrogen fluoride from a fluorocarbon production process
US-2025197215-A1 · Jun 19, 2025 · US
Fluoride ion cleaning systems and methods including post-retort fluid stream processing
US-2024360564-A1 · Oct 31, 2024 · US
Converting fluorinated materials into anhydrous hydrogen fluoride
US-11905178-B2 · Feb 20, 2024 · US
Converting fluorinated materials into anhydrous hydrogen fluoride
US-2024002228-A1 · Jan 4, 2024 · US
Production device and production method of electronic grade hydrofluoric acid
US-11325063-B2 · May 10, 2022 · US
Method for treating sulfur hexafluoride using radiation and apparatus for collecting and treating by-products
US-11058984-B2 · Jul 13, 2021 · US
Production device and production method of electronic grade hydrofluoric acid
US-2021008489-A1 · Jan 14, 2021 · US
Composition comprising HF and 1,3,3,3-tetrafluoropropene
US-10266465-B2 · Apr 23, 2019 · US
Process for the isomerisation of C3-7 (hydro)(halo)fluoroalkenes
US-10179754-B2 · Jan 15, 2019 · US
Method for producing chloropropene and method for producing 2,3,3,3-tetrafluoropropene
US-10173952-B2 · Jan 8, 2019 · US
Composition comprising hf and 1,3,3,3-tetrafluoropropene
US-2018312453-A1 · Nov 1, 2018 · US
Composition comprising HF and 1,3,3,3-tetrafluoropropene
US-10029963-B2 · Jul 24, 2018 · US
Uranium hexafluoride off-gas treatment system and method
US-2018030576-A1 · Feb 1, 2018 · US
Reverse osmosis for purifying mixtures of hydrofluoric acid and nitric acid
US-9840667-B2 · Dec 12, 2017 · US
Method of recycling hydrochloric and hydrofluoric acid effluent
US-9783427-B2 · Oct 10, 2017 · US
Method for producing chloropropene and method for producing 2,3,3,3-tetrafluoropropene
US-2017217859-A1 · Aug 3, 2017 · US
Process for the isomerisation of c3-7 (hydro)(halo)fluoroalkenes
US-2016332939-A1 · Nov 17, 2016 · US
Method for treating sulfur hexafluoride using radiation and apparatus for collecting and treating by-products
US-2016317965-A1 · Nov 3, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B7/195?
- CPC C01B7/195 is the Cooperative Patent Classification code for “Separation; Purification.”
- How many patents are filed under CPC C01B7/195 (Separation; Purification)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC C01B7/195 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).