C08J 2325/08
Copolymers of styrene
Official title: Copolymers of styrene (C08J2329/08, C08J2335/06, C08J2355/02 take precedence)
C08J2325/08 (Copolymers of styrene) appears on 391 US grants and 562 published applications in this corpus.
Search patents in C08J- Granted patents
- 391
- Published applications
- 562
- Assignees
- 308
- Inventors
- 1,497
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 10 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 10 |
| 2004 | 4 | 4 |
| 2005 | 3 | 7 |
| 2006 | 3 | 7 |
| 2007 | 1 | 10 |
| 2008 | 3 | 10 |
| 2009 | 3 | 8 |
| 2010 | 5 | 11 |
| 2011 | 5 | 16 |
| 2012 | 7 | 23 |
| 2013 | 8 | 15 |
| 2014 | 8 | 17 |
| 2015 | 19 | 34 |
| 2016 | 20 | 45 |
| 2017 | 30 | 50 |
| 2018 | 28 | 42 |
| 2019 | 34 | 36 |
| 2020 | 30 | 45 |
| 2021 | 19 | 26 |
| 2022 | 32 | 27 |
| 2023 | 14 | 40 |
| 2024 | 23 | 38 |
| 2025 | 17 | 19 |
| 2026 | 18 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Curable compositions29 Sep 2026US 12,747,343 B2AGC Multi Material America, Inc.
- Separator and preparation method thereof, secondary battery and device29 Sep 2026US 12,749,765 B2Contemporary Amperex Technology (Hong Kong) Limited
- Porous resin used to solid phase synthesis and preparation method therefor22 Sep 2026US 12,742,051 B2Sunresin New Materials Co. Ltd.
- Cation exchange membrane and method for producing same1 Sep 2026US 12,722,125 B2Astom Corporation
- Adsorbent resin for removing perfluorinated pollutants from body of water, preparation therefor, and use thereof25 Aug 2026US 12,715,787 B2Sunresin New Materials Co. Ltd.
- Polymer microparticles, resin modifier, and resin composition8 Oct 2026US 2026/0308338 A1Kaneka Corporation
- Method for preparing an aqueous dispersion of biocide-free organic opacifying pigment particles17 Sep 2026US 2026/0275055 A1Rohm and Haas Company
- Prepreg, metal-clad laminate, and wiring board10 Sep 2026US 2026/0264370 A1Panasonic Intellectual Property Management Co., Ltd.
- Copolymer composition, method for producing same, and molded article obtained using copolymer composition10 Sep 2026US 2026/0265433 A1Kuraray Co., Ltd.
- Sheet having base material layer containing abs-based resin10 Sep 2026US 2026/0265477 A1Denka Company Limited
Most cited
By later US patents
- Elastomeric film and method for making the same118US 6,111,163 AKimberly-Clark Worldwide, Inc. · 2000
- Polymerization of styrene acrylonitrile expandable microspheres100US 3,945,956 AThe Dow Chemical Company · 1976
- Tapered block styrene/butadiene copolymers78US 5,130,377 APhillips Petroleum Company · 1992
- Purification, impregnation and foaming of polymer particles with carbon dioxide69US 5,049,328 AARCO Chemical Technology, L. P. · 1991
- Process for preparing low density porous crosslinked polymeric materials61US 5,290,820 AShell Oil Company · 1994