Copolymer of olefin and unsaturated carboxylic acid or unsaturated carboxylic acid derivative
US-12473387-B2 · Nov 18, 2025 · US
Acids; Metal salts or ammonium salts thereof
Acids; Metal salts or ammonium salts thereof · 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 | C08F220/64 |
| Official title | Acids; Metal salts or ammonium salts thereof |
| Display label | Acids; Metal salts or ammonium salts thereof |
| Total patents | 48 |
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 | 2 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 10 |
| 2022 | 8 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for preparing olefin-polar monomer copolymer
US-12428505-B2 · Sep 30, 2025 · US
Polyurethane material with a high temperature resistance
US-12338313-B2 · Jun 24, 2025 · US
Aqueous dispersion, coating composition, coating film and coated article
US-2024360333-A1 · Oct 31, 2024 · US
Process for preparation of semi-crystalline functionalized olefin copolymer
US-11773195-B2 · Oct 3, 2023 · US
Copolymer of olefin and unsaturated carboxylic acid or unsaturated carboxylic acid derivative
US-2023257499-A1 · Aug 17, 2023 · US
Photoinitiator modified polyacidic polymer
US-11628125-B2 · Apr 18, 2023 · US
Method for preparing olefin-polar monomer copolymer
US-2022396646-A1 · Dec 15, 2022 · US
Process for preparation of ethylene and propylene ionomer
US-11472900-B2 · Oct 18, 2022 · US
Process for preparation of semi-crystalline polyolefinic ionomers
US-11466110-B2 · Oct 11, 2022 · US
Process for preparation of amorphous functionalized olefin copolymer
US-11466109-B2 · Oct 11, 2022 · US
Process for preparation of semi-crystalline functionalized olefin copolymer
US-2022306779-A1 · Sep 29, 2022 · US
Process for preparation of functionalized ethylene and propylene copolymer
US-11447585-B2 · Sep 20, 2022 · US
Process for preparation of amorphous polyolefinic ionomers
US-11401360-B2 · Aug 2, 2022 · US
Process for preparation of semi-crystalline functionalized olefin copolymer
US-11396565-B2 · Jul 26, 2022 · US
Process for preparation of semi-crystalline functionalized olefin copolymer
US-2021363278-A1 · Nov 25, 2021 · US
Process for preparation of semi-crystalline polyolefinic ionomers
US-2021309775-A1 · Oct 7, 2021 · US
Energy curable aqueous compositions
US-11104808-B2 · Aug 31, 2021 · US
Low temperature cure coating formed via resin-facilitated catalyst migration between layers in a double layer curing mechanism
US-11034857-B2 · Jun 15, 2021 · US
Process for preparation of ethylene and propylene ionomer
US-2021087312-A1 · Mar 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F220/64?
- CPC C08F220/64 is the Cooperative Patent Classification code for “Acids; Metal salts or ammonium salts thereof.”
- How many patents are filed under CPC C08F220/64 (Acids; Metal salts or ammonium salts thereof)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC C08F220/64 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).