Photonic crystal structure and anti-forgery color conversion film comprising same
US-11531150-B2 · Dec 20, 2022 · US
Homopolymers or copolymers of acrylonitrile (C09D155/02 takes precedence)
Homopolymers or copolymers of acrylonitrile (C09D155/02 takes precedence) · 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 | C09D133/20 |
| Official title | Homopolymers or copolymers of acrylonitrile (C09D155/02 takes precedence) |
| Display label | Homopolymers or copolymers of acrylonitrile (C09D155/02 takes precedence) |
| Total patents | 106 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 4 |
| 2017 | 11 |
| 2018 | 10 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 14 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing aqueous solution of n-vinyl carboxylic acid amide copolymer
US-2022153897-A1 · May 19, 2022 · US
Color shifting film, and backlight unit and display device comprising same
US-2021371676-A1 · Dec 2, 2021 · US
Method of manufacturing anisotropic conductive film using vertical ultrasonic waves
US-11161988-B2 · Nov 2, 2021 · US
Toner
US-2021302856-A1 · Sep 30, 2021 · US
Surface-structured coatings
US-11118069-B1 · Sep 14, 2021 · US
Multimodal coatings for heat and fire resistance
US-2021253875-A1 · Aug 19, 2021 · US
Surface-treated steel sheet and method for producing surface-treated steel sheet
US-11091839-B2 · Aug 17, 2021 · US
Fertilizer Combinations
US-2021206700-A1 · Jul 8, 2021 · US
Composition and multilayer body
US-2021198453-A1 · Jul 1, 2021 · US
Self-exposure method for surface of conductive particles anchored in polymer layer, method of fabricating anisotropic conductive film using the self-exposure method and the anisotropic conductive film
US-11021616-B2 · Jun 1, 2021 · US
Finely divided, cationic, aqueous polymer dispersions, method for the production thereof, and the use thereof
US-10975525-B2 · Apr 13, 2021 · US
Aqueous ink, ink cartridge and ink jet recording method
US-2021002470-A1 · Jan 7, 2021 · US
Separator for rechargeable battery and rechargeable lithium battery including the same
US-10840493-B2 · Nov 17, 2020 · US
Random Copolymer and Pinning Composition Comprising the Same
US-2020239701-A1 · Jul 30, 2020 · US
Photonic crystal structure and anti-forgery color conversion film comprising same
US-2020225391-A1 · Jul 16, 2020 · US
Separator for secondary battery and lithium secondary battery comprising same
US-2020119323-A1 · Apr 16, 2020 · US
Slurry for lithium ion secondary battery positive electrode-use, method for producing slurry for lithium ion secondary battery positive electrode-use, method for producing positive electrode for lithium ion secondary battery-use, and lithium ion secondary battery
US-10566628-B2 · Feb 18, 2020 · US
Separation composite membrane, separation membrane module, separator, composition for forming separation membrane, and method of producing separation composite membrane
US-2020023320-A1 · Jan 23, 2020 · US
Method for producing electrical storage device electrode with binder composition
US-10505195-B2 · Dec 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D133/20?
- CPC C09D133/20 is the Cooperative Patent Classification code for “Homopolymers or copolymers of acrylonitrile (C09D155/02 takes precedence).”
- How many patents are filed under CPC C09D133/20 (Homopolymers or copolymers of acrylonitrile (C09D155/02 takes precedence))?
- Our database includes 106 publications tagged with this CPC code.
- Is patent activity under CPC C09D133/20 growing?
- Publication counts under this code: 9 in 2024 vs 14 in 2025 (latest complete years).