Method for producing hollow fine particles, hollow fine particles, phase-separated fine particles, aqueous dispersion, and composition
US-2026035554-A1 · Feb 5, 2026 · US
in a ring containing oxygen (coumarone-indene polymers C08F244/00)
in a ring containing oxygen (coumarone-indene polymers C08F244/00) · 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 | C08F34/02 |
| Official title | in a ring containing oxygen (coumarone-indene polymers C08F244/00) |
| Display label | in a ring containing oxygen (coumarone-indene polymers C08F244/00) |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 6 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Material for forming organic film, patterning process, compound, and polymer
US-12379662-B2 · Aug 5, 2025 · US
Method for producing fluorine-containing polymer and composition thereof
US-12286513-B2 · Apr 29, 2025 · US
Method for producing hollow fine particles, hollow fine particles, phase separated fine particles, aqueous dispersion, and composition
US-2024269638-A1 · Aug 15, 2024 · US
Method for producing fluorinated polymer and method for producing fluorinated ion exchange polymer
US-2024254266-A1 · Aug 1, 2024 · US
Membrane electrode assembly
US-12040515-B2 · Jul 16, 2024 · US
Method for producing fluorinated polymer and method for producing fluorinated ion exchange polymer
US-11987656-B2 · May 21, 2024 · US
Display protective film
US-2022332860-A1 · Oct 20, 2022 · US
Method for producing fluorine-containing polymer and composition thereof
US-2022267536-A1 · Aug 25, 2022 · US
Hydrogen sulfide-carbon dioxide membrane separation systems and processes
US-11420153-B2 · Aug 23, 2022 · US
Material for forming organic film, patterning process, compound, and polymer
US-2022214617-A1 · Jul 7, 2022 · US
Monomer composition and method for producing fluorinated polymer
US-11274168-B2 · Mar 15, 2022 · US
Membrane electrode assembly
US-2022006111-A1 · Jan 6, 2022 · US
Composition for film formation, film, resist underlayer film-forming method, production method of patterned substrate, and compound
US-11003079-B2 · May 11, 2021 · US
Method for producing fluorinated polymer and method for producing fluorinated ion exchange polymer
US-2021070903-A1 · Mar 11, 2021 · US
Hydrogen sulfide-carbon dioxide membrane separation systems and processes
US-2020360853-A1 · Nov 19, 2020 · US
Modulated guanidine-containing polymers or nanoparticles
US-2020188520-A1 · Jun 18, 2020 · US
Process for producing fluorinated polymer
US-10611859-B2 · Apr 7, 2020 · US
Monomer composition and method for producing fluorinated polymer
US-2019185600-A1 · Jun 20, 2019 · US
Composition for film formation, film, resist underlayer film-forming method, production method of patterned substrate, and compound
US-2019094695-A1 · Mar 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F34/02?
- CPC C08F34/02 is the Cooperative Patent Classification code for “in a ring containing oxygen (coumarone-indene polymers C08F244/00).”
- How many patents are filed under CPC C08F34/02 (in a ring containing oxygen (coumarone-indene polymers C08F244/00))?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC C08F34/02 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).