Fused-ring polycyclic amine functionalized olefinic polymers for lubricating oil compositions
US-2025188379-A1 · Jun 12, 2025 · US
Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes
Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes · 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 | C10M129/20 |
| Official title | Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes |
| Display label | Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refrigeration cycle apparatus
US-12221591-B2 · Feb 11, 2025 · US
Refrigeration cycle apparatus
US-2023242833-A1 · Aug 3, 2023 · US
Lubricating composition for preventing or reducing pre-ignition in an engine
US-11535806-B2 · Dec 27, 2022 · US
Furniture lubricant
US-11332685-B2 · May 17, 2022 · US
Lubricating composition for preventing or reducing pre-ignition in an engine
US-2022049177-A1 · Feb 17, 2022 · US
Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine
US-10913915-B2 · Feb 9, 2021 · US
Lubricating oil compositions having functionalized quercetin antioxidants
US-2020190425-A1 · Jun 18, 2020 · US
Composition Containing Heterocyclic Compounds And A Method Of Lubricating An Internal Combustion Engine
US-2020123463-A1 · Apr 23, 2020 · US
Furniture lubricant
US-2020071631-A1 · Mar 5, 2020 · US
Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine
US-10550348-B2 · Feb 4, 2020 · US
Lubricating composition containing an oxyalkylated aromatic polyol compound
US-10501701-B2 · Dec 10, 2019 · US
Lubricating composition containing an oxyalkylated aromatic polyol compound
US-10364402-B2 · Jul 30, 2019 · US
Compositions of mono-alkyl ethers of monoanhydro-hexitols, production methods thereof and use of same
US-10221148-B2 · Mar 5, 2019 · US
Microalgal compositions and uses thereof
US-2019040334-A1 · Feb 7, 2019 · US
Composition Containing Heterocyclic Compounds and a Method of Lubricating an Internal Combustion Engine
US-2018237715-A1 · Aug 23, 2018 · US
Microalgal compositions and uses thereof
US-10053646-B2 · Aug 21, 2018 · US
Composition containing heterocyclic compounds and a method of lubricating an internal combustion engine
US-9982210-B2 · May 29, 2018 · US
Lubricating composition containing an oxyalkylated aromatic polyol compound
US-2017355924-A1 · Dec 14, 2017 · US
Lubricating composition containing an oxyalkylated aromatic polyol compound
US-2017355923-A1 · Dec 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C10M129/20?
- CPC C10M129/20 is the Cooperative Patent Classification code for “Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes.”
- How many patents are filed under CPC C10M129/20 (Cyclic ethers having 4 or more ring atoms, e.g. furans, dioxolanes)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC C10M129/20 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2025 (latest complete years).