Viscosity index improver, refrigerator oil, and working fluid composition for refrigerators
US-12552889-B2 · Feb 17, 2026 · US
the ester chains containing seven or more carbon atoms
the ester chains containing seven or more carbon atoms · 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 | C08F222/145 |
| Official title | {the ester chains containing seven or more carbon atoms} |
| Display label | the ester chains containing seven or more carbon atoms |
| Total patents | 31 |
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 | 4 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Viscosity index improver, refrigerator oil, and working fluid composition for refrigerators
US-2024309137-A1 · Sep 19, 2024 · US
Curable compositions and uses thereof
US-11591425-B2 · Feb 28, 2023 · US
Maleic anhydride copolymer with broadly dispersed ester side chain as wax inhibitor and wax crystallization enhancer
US-11261369-B2 · Mar 1, 2022 · US
Resin composition
US-11230617-B2 · Jan 25, 2022 · US
Wax inhibitors for oil compositions and methods of using wax inhibitors to reduce wax deposition from oil
US-11193053-B2 · Dec 7, 2021 · US
Resist composition, method of forming resist pattern, polymeric compound, and compound
US-11061329-B2 · Jul 13, 2021 · US
Composite and laminate articles and polymerizable systems for producing the same
US-2021179892-A1 · Jun 17, 2021 · US
Composite and laminate articles and polymerizable systems for producing the same
US-10913875-B2 · Feb 9, 2021 · US
Wax inhibitors for oil compositions and methods of using wax inhibitors to reduce wax deposition from oil
US-2020377785-A1 · Dec 3, 2020 · US
Resin composition
US-2020283551-A1 · Sep 10, 2020 · US
Curable compositions and uses thereof
US-2020277423-A1 · Sep 3, 2020 · US
Maleic anhydride copolymer with broadly dispersed ester side chain as wax inhibitor and wax crystallization enhancer
US-2020024504-A1 · Jan 23, 2020 · US
Compositions containing 1,1-di-carbonyl-substituted alkene compounds for preparing polymers having enhanced glass transition temperatures
US-10519257-B2 · Dec 31, 2019 · US
Organic film forming composition and electronic apparatus comprising a cured product thereof
US-10501655-B2 · Dec 10, 2019 · US
Compositions containing 1,1-disubstituted alkene compounds for preparing polymers having enhanced glass transition temperatures
US-2019202947-A1 · Jul 4, 2019 · US
Resist composition, method of forming resist pattern, polymeric compound, and compound
US-2019163057-A1 · May 30, 2019 · US
Intraocular lens material
US-2018318464-A1 · Nov 8, 2018 · US
Intraocular lens material
US-10117965-B1 · Nov 6, 2018 · US
Compositions containing 1,1-di-substituted alkene compounds for preparing polymers having enhanced glass transition temperatures
US-9890227-B1 · Feb 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F222/145?
- CPC C08F222/145 is the Cooperative Patent Classification code for “the ester chains containing seven or more carbon atoms.”
- How many patents are filed under CPC C08F222/145 (the ester chains containing seven or more carbon atoms)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC C08F222/145 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2024 (latest complete years).