C08L 25/06
Polystyrene
C08L25/06 (Polystyrene) appears on 1,275 US grants and 1,252 published applications in this corpus.
Search patents in C08L- Granted patents
- 1,275
- Published applications
- 1,252
- Assignees
- 708
- Inventors
- 3,553
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 2 | 0 |
| 1978 | 17 | 0 |
| 1979 | 11 | 0 |
| 1980 | 5 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 17 | 0 |
| 1990 | 21 | 0 |
| 1991 | 16 | 0 |
| 1992 | 22 | 0 |
| 1993 | 21 | 0 |
| 1994 | 17 | 0 |
| 1995 | 17 | 0 |
| 1996 | 21 | 0 |
| 1997 | 24 | 0 |
| 1998 | 27 | 0 |
| 1999 | 32 | 0 |
| 2000 | 46 | 0 |
| 2001 | 38 | 7 |
| 2002 | 41 | 30 |
| 2003 | 28 | 50 |
| 2004 | 27 | 48 |
| 2005 | 27 | 45 |
| 2006 | 22 | 38 |
| 2007 | 26 | 29 |
| 2008 | 14 | 29 |
| 2009 | 9 | 42 |
| 2010 | 11 | 43 |
| 2011 | 22 | 36 |
| 2012 | 23 | 46 |
| 2013 | 32 | 53 |
| 2014 | 36 | 50 |
| 2015 | 38 | 50 |
| 2016 | 33 | 45 |
| 2017 | 46 | 50 |
| 2018 | 40 | 84 |
| 2019 | 45 | 94 |
| 2020 | 61 | 80 |
| 2021 | 51 | 71 |
| 2022 | 48 | 67 |
| 2023 | 67 | 70 |
| 2024 | 38 | 48 |
| 2025 | 23 | 31 |
| 2026 | 21 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymer fine particles having structural color development property25 Aug 2026US 12,715,988 B2Mitsubishi Chemical Corporation
- Material for a polystyrene-based food packaging and preparation method11 Aug 2026US 12,703,783 B2Siamp Cedap Reunies
- Resist underlayer compositions and pattern formation methods using such compositions11 Aug 2026US 12,704,778 B2Dupont Electronic Materials International, LLC
- Porous piezoelectric composites and production thereof14 Jul 2026US 12,679,021 B2National Research Council of Canada
- Recycled Material Based on in-situ compatibilization and chain extension and preparation method therefor30 Jun 2026US 12,668,694 B2China National Electric Apparatus Research Institute Co., Ltd.
- 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.
- Molded stator and motor1 Oct 2026US 2026/0302841 A1Resonac Corporation
- Low dielectric resin composition, adhesiveness-imparting agent, low dielectric adhesive composition, low dielectric adhesive molded product, low dielectric adhesive, and laminate3 Sep 2026US 2026/0258237 A1Mitsui Chemicals, Inc.
- Carbon-component-containing composite resin particles, foam particles, molded foam, and method for producing said composite resin particles20 Aug 2026US 2026/0242580 A1Sekisui Kasei Co., Ltd.
- Resin composition, pellets, and molded article6 Aug 2026US 2026/0226270 A1Mitsubishi Chemical Corporation
Most cited
By later US patents
- Plastic additive, plastic composition containing the additive and plastic molding containing the additive276US 5,648,013 ACanon Kabushiki Kaisha · 1997
- Pseudo-random copolymers formed by use of constrained geometry addition polymerization catalysts256US 5,703,187 AThe Dow Chemical Company · 1997
- Structures and fabricated articles having shape memory made from .alpha.-olefin/vinyl or vinylidene aromatic and/or hindered aliphatic vinyl or vinylidene interpolymers210US 6,156,842 AThe Dow Chemical Company · 2000
- Mold material made with additives162US 5,849,209 AJohnson & Johnson Vision Products, Inc. · 1998
- Light scattering material143US 5,744,534 ABridgestone Corporation · 1998