C08J 2333/20
Homopolymers or copolymers of acrylonitrile
Official title: Homopolymers or copolymers of acrylonitrile (C08J2355/02 takes precedence)
C08J2333/20 (Homopolymers or copolymers of acrylonitrile) appears on 136 US grants and 152 published applications in this corpus.
Search patents in C08J- Granted patents
- 136
- Published applications
- 152
- Assignees
- 133
- Inventors
- 507
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 4 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 4 |
| 2012 | 1 | 3 |
| 2013 | 0 | 5 |
| 2014 | 3 | 4 |
| 2015 | 6 | 12 |
| 2016 | 2 | 8 |
| 2017 | 5 | 13 |
| 2018 | 10 | 16 |
| 2019 | 10 | 10 |
| 2020 | 8 | 17 |
| 2021 | 3 | 6 |
| 2022 | 8 | 8 |
| 2023 | 7 | 14 |
| 2024 | 4 | 8 |
| 2025 | 9 | 5 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Occult blood detection film, and preparation method therefor and use thereof and occult blood detection kit6 Oct 2026US 12,754,190 B2Ankon Medical Technologies (Shanghai) Co., LTD.
- Solvent applications of anhydromevalonolactone14 Apr 2026US 12,600,835 B2Visolis, Inc.
- Porous carbon composite material and manufacturing method thereof31 Mar 2026US 12,590,000 B2National Tsing Hua University
- Master batch for expansion molding and foam molded body20 Jan 2026US 12,528,919 B2Sekisui Chemical Co., Ltd.
- Composition for self-adhesive foamed sheet and self-adhesive foamed laminate sheet28 Oct 2025US 12,454,593 B2Zeon Corporation
- Silicon-polymer based composite anodes for lithium-ion batteries and methods of making the same27 Aug 2026US 2026/0250471 A1NOHMS Technologies, Inc.
- Solvent applications of anhydromevalonolactone11 Jun 2026US 2026/0159663 A1
- Electrode composite12 Mar 2026US 2026/0071048 A1Ford Global Technologies, LLC
- Solvent applications of anhydromevalonolactone15 Jan 2026US 2026/0015481 A1Visolis, Inc.
- System and method for flexible sealant with density modifier1 Jan 2026US 2026/0002008 A1Polymer Adhesives, LLC
Most cited
By later US patents
- Compositions, methods, and systems for bead formation using improved polymers188US 10,590,244 B210x Genomics, Inc. · 2020
- Article of footwear with lightweight sole assembly126US 7,941,938 B2NIKE, Inc. · 2011
- Process for the preparation of porous polymer beads67US 4,940,734 AAmerican Cyanamid Company · 1990
- Microcellular carbon foam and method45US 5,300,272 AMartin Marietta Energy Systems, Inc. · 1994
- Method for the preparation of hydrophilic spongy gels37US 4,021,382 ACeskoslovenska akademie ved · 1977