Process for producing very high purity helium or hydrogen
US-2024228285-A9 · Jul 11, 2024 · US
Combined chemical and physical processing
Combined chemical and physical processing · 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 | C01B23/0094 |
| Official title | {Combined chemical and physical processing} |
| Display label | Combined chemical and physical processing |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for producing very high purity helium or hydrogen
US-2024132353-A1 · Apr 25, 2024 · US
Production of hyperpolarized gas
US-11926525-B2 · Mar 12, 2024 · US
Helium recovery process
US-2023382735-A1 · Nov 30, 2023 · US
Gas recovering apparatus, semiconductor manufacturing system, and gas recovering method
US-11766635-B2 · Sep 26, 2023 · US
Method for pretreating and recovering a rare gas from a gas contaminant stream exiting an etch chamber
US-11603313-B2 · Mar 14, 2023 · US
System and method for separating xenon-krypton mixed gas by hydrate formation process
US-11389766-B2 · Jul 19, 2022 · US
Helium recovery from gaseous streams
US-11325066-B2 · May 10, 2022 · US
Method for refining argon gas and recovering and refining apparatus for argon gas
US-11305994-B2 · Apr 19, 2022 · US
Gas recovering apparatus, semiconductor manufacturing system, and gas recovering method
US-2022072473-A1 · Mar 10, 2022 · US
Helium purification process and unit
US-2021354987-A1 · Nov 18, 2021 · US
Process for argon and nitrogen production
US-11104576-B2 · Aug 31, 2021 · US
Helium purification process and unit
US-11021366-B2 · Jun 1, 2021 · US
System and Method for Separating Xenon-krypton Mixed Gas by Hydrate Formation Process
US-2021146301-A1 · May 20, 2021 · US
Helium recovery from gaseous streams
US-2021031139-A1 · Feb 4, 2021 · US
Helium purification process and unit
US-2020385269-A1 · Dec 10, 2020 · US
Helium recovery from gaseous streams
US-10765995-B2 · Sep 8, 2020 · US
Process for argon and nitrogen production
US-2020165131-A1 · May 28, 2020 · US
Combined membrane-pressure swing adsorption method for recovery of helium
US-10207928-B2 · Feb 19, 2019 · US
Helium recovery from gaseous streams
US-2018353898-A1 · Dec 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B23/0094?
- CPC C01B23/0094 is the Cooperative Patent Classification code for “Combined chemical and physical processing.”
- How many patents are filed under CPC C01B23/0094 (Combined chemical and physical processing)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C01B23/0094 growing?
- Publication counts under this code: 3 in 2023 vs 3 in 2024 (latest complete years).