Waste gas treatment device, waste gas treatment method, and waste gas adsorption and recovery system including the same
US-2025304445-A1 · Oct 2, 2025 · US
Zeolites
Zeolites · 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 | C01B23/0068 |
| Official title | {Zeolites} |
| Display label | Zeolites |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Separation of krypton gas from xenon gas using natural clinoptilolite
US-12421115-B1 · Sep 23, 2025 · US
Gas purification method and device
US-12297107-B2 · May 13, 2025 · US
Method of recycling helium from waste gas in semiconductor process
US-2025122079-A1 · Apr 17, 2025 · US
Fluid recovery process and apparatus for xenon and or krypton recovery
US-12104850-B2 · Oct 1, 2024 · US
Process and apparatus to recover helium
US-2024217821-A1 · Jul 4, 2024 · US
Gas purification method and device
US-2023019514-A1 · Jan 19, 2023 · US
Fluid recovery process and apparatus for xenon and or krypton recovery
US-2022357104-A1 · Nov 10, 2022 · US
Xenon adsorbent
US-11065597-B2 · Jul 20, 2021 · US
RHO adsorbent compositions, methods of making and using them
US-10646848-B2 · May 12, 2020 · US
Xenon adsorbent
US-2019336938-A1 · Nov 7, 2019 · US
Processes using improved RHO adsorbent compositions
US-10343139-B2 · Jul 9, 2019 · US
Cryogenic adsorption process for xenon recovery
US-10295255-B2 · May 21, 2019 · US
Processes using improved rho adsorbent compositions
US-2019091651-A1 · Mar 28, 2019 · US
Rho adsorbent compositions, methods of making and using them
US-2019091652-A1 · Mar 28, 2019 · US
Method for recovering and purifying argon gas from silicon single crystal manufacturing apparatus and apparatus for recovering and purifying argon gas
US-9890044-B2 · Feb 13, 2018 · US
Purification of argon through liquid phase cryogenic adsorption
US-9772139-B2 · Sep 26, 2017 · US
Modified Chabazite Adsorbent Compositions, Methods of Making and Using Them
US-2017239641-A1 · Aug 24, 2017 · US
Method for argon production via cold pressure swing adsorption
US-9708188-B1 · Jul 18, 2017 · US
Method for recovering and purifying argon gas from silicon single crystal manufacturing apparatus and apparatus for recovering and purifying argon gas
US-2016325996-A1 · Nov 10, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B23/0068?
- CPC C01B23/0068 is the Cooperative Patent Classification code for “Zeolites.”
- How many patents are filed under CPC C01B23/0068 (Zeolites)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC C01B23/0068 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).