C08J 2325/06
Polystyrene
C08J2325/06 (Polystyrene) appears on 821 US grants and 1,148 published applications in this corpus.
Search patents in C08J- Granted patents
- 821
- Published applications
- 1,148
- Assignees
- 574
- Inventors
- 2,547
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 0 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 17 | 0 |
| 1994 | 13 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 15 | 0 |
| 2001 | 11 | 1 |
| 2002 | 12 | 11 |
| 2003 | 10 | 17 |
| 2004 | 11 | 11 |
| 2005 | 3 | 23 |
| 2006 | 9 | 34 |
| 2007 | 9 | 31 |
| 2008 | 4 | 26 |
| 2009 | 12 | 16 |
| 2010 | 13 | 34 |
| 2011 | 13 | 42 |
| 2012 | 14 | 32 |
| 2013 | 23 | 50 |
| 2014 | 33 | 49 |
| 2015 | 37 | 80 |
| 2016 | 34 | 75 |
| 2017 | 45 | 55 |
| 2018 | 42 | 64 |
| 2019 | 37 | 78 |
| 2020 | 37 | 66 |
| 2021 | 43 | 45 |
| 2022 | 50 | 72 |
| 2023 | 38 | 70 |
| 2024 | 40 | 71 |
| 2025 | 40 | 50 |
| 2026 | 29 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Resin composition, prepreg, film provided with resin, metal foil provided with resin, metal-clad laminate, and wiring board6 Oct 2026US 12,753,301 B2Panasonic Intellectual Property Management Co., Ltd.
- Optical compensation films based on combinations of negative birefrigent and positive birefrigent components6 Oct 2026US 12,754,358 B2Akron Polymer Systems, Inc.
- System and process for converting waste plastic into a usable product22 Sep 2026US 12,742,052 B2
- Method for the production of cellular plastic particles25 Aug 2026US 12,715,162 B2FOX Velution GmbH
- Polymer fine particles having structural color development property25 Aug 2026US 12,715,988 B2Mitsubishi Chemical Corporation
- Polymer microparticles, resin modifier, and resin composition8 Oct 2026US 2026/0308338 A1Kaneka Corporation
- Processing petroleum-derived materials1 Oct 2026US 2026/0297268 A1Plastonix Inc.
- Foamable composite resin particles, method of producing the same, foamed particles, method of producing the same, foamed molded article, and automobile member1 Oct 2026US 2026/0297316 A1Sekisui Kasei Co., Ltd.
- Composite resin particles, foamable particles, foamed particles, molded foam, and production method for composite resin particles24 Sep 2026US 2026/0286080 A1Sekisui Kasei Co., Ltd.
- Method for preparing foam molded parts with coated particles17 Sep 2026US 2026/0275066 A1BASF SE
Most cited
By later US patents
- Polymer foam process95US 4,424,287 AMobil Oil Corporation · 1984
- Compositions containing fluorine substituted olefins90US 7,279,451 B2Honeywell International Inc. · 2007
- Absorbent, extruded thermoplastic foams85US 6,071,580 AThe Dow Chemical Company · 2000
- Method of making thermoplastic foamed articles using supercritical fluid74US 5,670,102 AMinnesota Mining and Manufacturing Company · 1997
- Polymeric articles having antistatic properties and methods for their manufacture71US 6,136,396 ATenneco Packaging · 2000