Derivatized polyimides and methods of making and using
US-2017369371-A1 · Dec 28, 2017 · US
Homopolymers or copolymers of amides or imides
Homopolymers or copolymers of amides or imides · 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 | C08L33/24 |
| Official title | Homopolymers or copolymers of amides or imides |
| Display label | Homopolymers or copolymers of amides or imides |
| Total patents | 335 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 18 |
| 2017 | 27 |
| 2018 | 35 |
| 2019 | 35 |
| 2020 | 44 |
| 2021 | 39 |
| 2022 | 31 |
| 2023 | 39 |
| 2024 | 25 |
| 2025 | 24 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fouling Control Coating Composition Comprising a Polymer Containing Silyl Ester Groups, and a Polymer Comprising Quaternary Ammonium/Phosphonium Sulphonate Groups
US-2017355861-A1 · Dec 14, 2017 · US
Aqueous polymer dispersion and process of making the same
US-2017321059-A1 · Nov 9, 2017 · US
Optical resin composition and film
US-9803078-B2 · Oct 31, 2017 · US
Polyurea macromer and latexes thereof
US-9783669-B2 · Oct 10, 2017 · US
Polymer compound for a conductive polymer and method for producing same
US-9777093-B2 · Oct 3, 2017 · US
Aqueous coating composition and process of making the same
US-2017275408-A1 · Sep 28, 2017 · US
Surface modification agent for control of dust from additive particles
US-2017252716-A1 · Sep 7, 2017 · US
Solid-state image capture element optical filter and application thereof
US-9746595-B2 · Aug 29, 2017 · US
Removal of hydrate inhibitors from waste streams
US-2017225978-A1 · Aug 10, 2017 · US
Curable compositions
US-2017226275-A1 · Aug 10, 2017 · US
Coating compositions suitable for use with an overcoated photoresist
US-9726977-B2 · Aug 8, 2017 · US
Hydrophilic materials including sulfonate copolymer and amino resin
US-2017210937-A1 · Jul 27, 2017 · US
Curable resin, blue photoresist, color filter, and methods of preparing the same, and color display device
US-9670321-B2 · Jun 6, 2017 · US
Hydrogel composition
US-2017145203-A1 · May 25, 2017 · US
Optical film and method of preparing optical film
US-9649791-B2 · May 16, 2017 · US
Polyimide precursor composition, method of producing polyimide precursor composition, method of producing polyimide molded article, polyimide molded article, liquid crystal alignment film, passivation film, wire coating material, and adhesive film
US-9650550-B2 · May 16, 2017 · US
Amic acids and imides derived from terpolymers
US-2017101485-A1 · Apr 13, 2017 · US
Cured-film formation composition, orientation material, and retardation material
US-9598547-B2 · Mar 21, 2017 · US
Material for optical film, polymer, article prepared by using the polymer, and display device including the article
US-9594187-B2 · Mar 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08L33/24?
- CPC C08L33/24 is the Cooperative Patent Classification code for “Homopolymers or copolymers of amides or imides.”
- How many patents are filed under CPC C08L33/24 (Homopolymers or copolymers of amides or imides)?
- Our database includes 335 publications tagged with this CPC code.
- Is patent activity under CPC C08L33/24 growing?
- Publication counts under this code: 25 in 2024 vs 24 in 2025 (latest complete years).