Fabrication of tragacanthin-PVA nanofibrous webs and applications thereof in water-absorbent filters
US-11896920-B2 · Feb 13, 2024 · US
PAN, i.e. polyacrylonitrile
PAN, i.e. polyacrylonitrile · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29K2033/20 |
| Official title | PAN, i.e. polyacrylonitrile |
| Display label | PAN, i.e. polyacrylonitrile |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 11 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 12 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 8 |
| 2024 | 9 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermally and/or electrically conductive materials and method for the production thereof
US-11180625-B2 · Nov 23, 2021 · US
Rapid-Induction Sinter Forge for Roll-to-Roll Continuous Manufacturing of Thin Films
US-2021346951-A1 · Nov 11, 2021 · US
Filter medium, manufacturing method therefor, and filter equipment using same
US-11084266-B2 · Aug 10, 2021 · US
Method for preparation and activation of super-hydrophobic electret fiber material for cleaning PM2.5
US-11014028-B2 · May 25, 2021 · US
Apparatus and method for vacuumizing and sealing a package
US-10941879-B2 · Mar 9, 2021 · US
Latex composition for dip molding, and molded product manufactured therefrom
US-10858469-B2 · Dec 8, 2020 · US
Silicon-dominant battery electrodes
US-2020381711-A1 · Dec 3, 2020 · US
Port with septum and ethylene/a-olefin multi-block copolymer
US-10849827-B2 · Dec 1, 2020 · US
Maleimide-based copolymer, method for producing same, and resin composition obtained using same
US-2020369813-A1 · Nov 26, 2020 · US
Primer compositions for injection molding
US-10815388-B2 · Oct 27, 2020 · US
Master batch for expansion molding and foam molded body
US-2020231763-A1 · Jul 23, 2020 · US
Polymeric foam layer and methods of making the same
US-2020230911-A1 · Jul 23, 2020 · US
Latex composition for dip molding, and molded product manufactured therefrom
US-10717851-B2 · Jul 21, 2020 · US
Glass and polymer film assemblies and methods of making
US-10688768-B2 · Jun 23, 2020 · US
Methods of making plastic-metal junctions via laser
US-10682727-B2 · Jun 16, 2020 · US
Sound absorbing body
US-10580395-B2 · Mar 3, 2020 · US
Filter apparatus having a housing and filter media inside the housing
US-10525686-B2 · Jan 7, 2020 · US
Method for reinforcing and/or lining material
US-10456986-B2 · Oct 29, 2019 · US
Carbon fiber crystal orientation improvement by polymer modification, fiber stretching and oxidation for brake application
US-2019293139-A1 · Sep 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29K2033/20?
- CPC B29K2033/20 is the Cooperative Patent Classification code for “PAN, i.e. polyacrylonitrile.”
- How many patents are filed under CPC B29K2033/20 (PAN, i.e. polyacrylonitrile)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC B29K2033/20 growing?
- Publication counts under this code: 9 in 2024 vs 4 in 2025 (latest complete years).