Composition for forming organic film, method for forming organic film, pattern forming method, and polymer
US-2025377597-A1 · Dec 11, 2025 · US
Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only
Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only · 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 | C09D161/18 |
| Official title | Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only |
| Display label | Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only |
| Total patents | 25 |
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 | 4 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 2 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photosensitive resin composition, method for producing resist pattern film, and method for producing plated shaped article
US-2025147418-A1 · May 8, 2025 · US
Emulsion-type epoxy resin composition, method for producing same, and coating material
US-2024425696-A1 · Dec 26, 2024 · US
Resist underlayer film-forming composition including cyclic carbonyl compound
US-12072630-B2 · Aug 27, 2024 · US
Anion exchange polymers and membranes for electrolysis
US-2024110025-A1 · Apr 4, 2024 · US
Surface treatment agent and method of producing substrate having surface-treated layer
US-2023416560-A1 · Dec 28, 2023 · US
Composition for forming organic film, patterning process, and polymer
US-11709429-B2 · Jul 25, 2023 · US
Foam molding composition, foam molded body, electric wire, method for producing foam molded body and method for producing electric wire
US-2023183450-A1 · Jun 15, 2023 · US
Resist underlayer film-forming composition including cyclic carbonyl compound
US-2021124268-A1 · Apr 29, 2021 · US
Composition for forming film protecting against aqueous hydrogen peroxide solution
US-10894887-B2 · Jan 19, 2021 · US
Composition for forming organic film, patterning process, and polymer
US-2020387071-A1 · Dec 10, 2020 · US
Composition for film formation for lithography, film for lithography, method for forming resist pattern, and method for forming circuit pattern
US-2020354501-A1 · Nov 12, 2020 · US
Method for roughening surface using wet treatment
US-10804111-B2 · Oct 13, 2020 · US
Composition for forming film protecting against aqueous hydrogen peroxide solution
US-2020131376-A1 · Apr 30, 2020 · US
Semiconductor substrate treatment agent and substrate-treating method
US-2019264035-A1 · Aug 29, 2019 · US
Method for roughening surface using wet treatment
US-2019092681-A1 · Mar 28, 2019 · US
Cyanate ester compound, curable resin composition containing said compound, and cured product of said composition
US-10160824-B2 · Dec 25, 2018 · US
Polymer, organic layer composition, organic layer, and method of forming patterns
US-9971243-B2 · May 15, 2018 · US
Method for coating pipe with acid-curable resin and acid curing agent
US-9718985-B2 · Aug 1, 2017 · US
Polymer, organic layer composition, organic layer, and method of forming patterns
US-2016363864-A1 · Dec 15, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D161/18?
- CPC C09D161/18 is the Cooperative Patent Classification code for “Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only.”
- How many patents are filed under CPC C09D161/18 (Condensation polymers of aldehydes or ketones with aromatic hydrocarbons or their halogen derivatives only)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC C09D161/18 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).