C08F 257/02
On to polymers of styrene or alkyl-substituted styrenes
Official title: on to polymers of styrene or alkyl-substituted styrenes
C08F257/02 (On to polymers of styrene or alkyl-substituted styrenes) appears on 798 US grants and 674 published applications in this corpus.
Search patents in C08F- Granted patents
- 798
- Published applications
- 674
- Assignees
- 433
- Inventors
- 2,227
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 2 | 0 |
| 1981 | 13 | 0 |
| 1982 | 10 | 0 |
| 1983 | 16 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 11 | 0 |
| 1987 | 26 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 21 | 0 |
| 1994 | 11 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 23 | 0 |
| 1999 | 10 | 0 |
| 2000 | 29 | 0 |
| 2001 | 19 | 12 |
| 2002 | 39 | 58 |
| 2003 | 31 | 48 |
| 2004 | 38 | 34 |
| 2005 | 27 | 31 |
| 2006 | 25 | 42 |
| 2007 | 19 | 41 |
| 2008 | 14 | 34 |
| 2009 | 26 | 21 |
| 2010 | 24 | 48 |
| 2011 | 25 | 11 |
| 2012 | 18 | 14 |
| 2013 | 16 | 14 |
| 2014 | 17 | 16 |
| 2015 | 13 | 13 |
| 2016 | 15 | 19 |
| 2017 | 13 | 21 |
| 2018 | 12 | 24 |
| 2019 | 14 | 20 |
| 2020 | 18 | 25 |
| 2021 | 22 | 34 |
| 2022 | 17 | 30 |
| 2023 | 17 | 20 |
| 2024 | 21 | 16 |
| 2025 | 15 | 16 |
| 2026 | 12 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Resin composition, prepreg, resin-coated film, resin-coated metal foil, metal-cladded laminate board, and wiring board22 Sep 2026US 12,742,047 B2Panasonic Intellectual Property Management Co., Ltd.
- Polyfunctional vinyl aromatic copolymer and method for manufacturing same, copolymer rubber obtained therefrom, rubber composition, rubber crosslinked material, and tire member25 Aug 2026US 12,715,943 B2Nippon Steel Chemical & Material Co., Ltd.
- Optical film, display device, and composition for forming colored layer18 Aug 2026US 12,710,566 B2Toppan Inc.
- Process for producing a thermoplastic moulding compound comprising a thermoplastic copolymer A and a graft copolymer B4 Aug 2026US 12,698,351 B2Ineos Styrolution Group GmbH
- Modifiers for polyesters that improve viscosity in melt26 May 2026US 12,637,563 B2Kaneka Americas Holding, Inc.
- Glycerol-based resins for 3-d printing27 Aug 2026US 2026/0250451 A1The Board of Trustees of The University of Alabama
- Waterborne polymer composition and preparation method thereof23 Jul 2026US 2026/0209411 A1Organik Kimya Netherlands BV
- Resin composition, prepreg, metal foil-clad laminate and printed circuit board16 Jul 2026US 2026/0206133 A1Zeon Corporation
- Resin composition, prepreg, resin film, metal-clad laminate, printed wiring board, and semiconductor package2 Jul 2026US 2026/0184835 A1Resonac Corporation
- Strength-enhanced and toughened plastic material compounded with single-chain nanoparticles and preparation method therefor18 Jun 2026US 2026/0167746 A1Jilin University
Most cited
By later US patents
- Processes based on atom (or group) transfer radical polymerization and novel (co) polymers having useful structures and properties295US 5,807,937 ACarnegie Mellon University · 1998
- Thermoplastic elastomer compositions from branched olefin copolymers154US 6,147,180 AExxon Chemical Patents Inc. · 2000
- High melt strength polyethylene compositions146US 6,114,457 AExxon Chemical Patents Inc. · 2000
- Crosslinkable prepolymers from a hydrophilic monomer and a hydrophobic crosslinker117US 7,091,283 B2Novartis AG · 2006
- Solid gel membrane separator in rechargeable electrochemical cells105US 6,358,651 B1Reveo, Inc. · 2002