Multifunctional n-oxide hydrotropes, cleaning formulations containing them and use thereof
US-2025382549-A1 · Dec 18, 2025 · US
containing oxygen
containing oxygen · 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 | C08G65/324 |
| Official title | containing oxygen |
| Display label | containing oxygen |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
US-12180432-B2 · Dec 31, 2024 · US
Polyalkylene oxide ester polymer, its preparation and use
US-2024247102-A1 · Jul 25, 2024 · US
Method for producing multi-arm type polyethylene glycol derivative
US-11905366-B2 · Feb 20, 2024 · US
Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium
US-2023287288-A1 · Sep 14, 2023 · US
Polyethylene glycol derivative and use thereof
US-2023212103-A1 · Jul 6, 2023 · US
Method for purifying trityl group-containing monodispersed polyethylene glycol
US-11680137-B2 · Jun 20, 2023 · US
Polyethylene glycol derivative and use thereof
US-11603346-B2 · Mar 14, 2023 · US
(Per)fluoropolyether polymers
US-11427680-B2 · Aug 30, 2022 · US
Cryoprotectant polymers and methods of making and using thereof
US-2022248664-A1 · Aug 11, 2022 · US
Lactide copolymers and ring-opened lactide copolymers
US-11267936-B2 · Mar 8, 2022 · US
Amine polymer and preparation method and use thereof
US-10968313-B2 · Apr 6, 2021 · US
Method for producing multi-arm type polyethylene glycol derivative
US-2021024692-A1 · Jan 28, 2021 · US
Method for purifying trityl group-containing monodispersed polyethylene glycol
US-2021009756-A1 · Jan 14, 2021 · US
Lactide copolymers and ring-opened lactide copolymers
US-2020165381-A1 · May 28, 2020 · US
Lactide copolymers and ring-opened lactide copolymers
US-10590236-B2 · Mar 17, 2020 · US
(per)fluoropolyether polymers
US-2020079902-A1 · Mar 12, 2020 · US
Method for producing fluoropolyoxyalkylene peroxide compound
US-10550078-B2 · Feb 4, 2020 · US
Method for producing fluoropolyoxyalkylene peroxide compound
US-2019308936-A1 · Oct 10, 2019 · US
Process for producing hydrosilylable polyoxyalkylene ethers
US-10301427-B2 · May 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G65/324?
- CPC C08G65/324 is the Cooperative Patent Classification code for “containing oxygen.”
- How many patents are filed under CPC C08G65/324 (containing oxygen)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC C08G65/324 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).