C08F 297/00
Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst
Official title: Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
C08F297/00 (Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst) appears on 2,287 US grants and 1,902 published applications in this corpus.
Search patents in C08F- Granted patents
- 2,287
- Published applications
- 1,902
- Assignees
- 590
- Inventors
- 4,558
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 12 | 0 |
| 1978 | 22 | 0 |
| 1979 | 12 | 0 |
| 1980 | 12 | 0 |
| 1981 | 31 | 0 |
| 1982 | 21 | 0 |
| 1983 | 16 | 0 |
| 1984 | 20 | 0 |
| 1985 | 23 | 0 |
| 1986 | 11 | 0 |
| 1987 | 16 | 0 |
| 1988 | 22 | 0 |
| 1989 | 20 | 0 |
| 1990 | 27 | 0 |
| 1991 | 26 | 0 |
| 1992 | 39 | 0 |
| 1993 | 55 | 0 |
| 1994 | 62 | 0 |
| 1995 | 56 | 0 |
| 1996 | 44 | 0 |
| 1997 | 54 | 0 |
| 1998 | 64 | 0 |
| 1999 | 25 | 0 |
| 2000 | 43 | 0 |
| 2001 | 90 | 16 |
| 2002 | 77 | 45 |
| 2003 | 67 | 85 |
| 2004 | 53 | 87 |
| 2005 | 44 | 116 |
| 2006 | 52 | 104 |
| 2007 | 75 | 89 |
| 2008 | 38 | 79 |
| 2009 | 56 | 91 |
| 2010 | 86 | 99 |
| 2011 | 77 | 81 |
| 2012 | 64 | 62 |
| 2013 | 62 | 60 |
| 2014 | 68 | 50 |
| 2015 | 58 | 61 |
| 2016 | 46 | 67 |
| 2017 | 62 | 75 |
| 2018 | 56 | 89 |
| 2019 | 70 | 72 |
| 2020 | 53 | 104 |
| 2021 | 52 | 79 |
| 2022 | 67 | 84 |
| 2023 | 40 | 71 |
| 2024 | 60 | 58 |
| 2025 | 46 | 46 |
| 2026 | 16 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing block copolymer6 Oct 2026US 12,753,264 B2Nippon Soda Co., Ltd.
- Preparation of polyolefin-polyacrylate block copolymers additives for increasing surface energy of polyethylene8 Sep 2026US 12,729,262 B2Dow Global Technologies LLC
- Hydrogenated copolymer, resin composition, molded article, and adhesive film2 Jun 2026US 12,643,974 B2Asahi Kasei Kabushiki Kaisha
- Resin composition, stretchable film, sheet and tube2 Jun 2026US 12,643,998 B2Zeon Corporation
- Organozinc compound preparation method, chain transfer agent, block copolymer, and resin composition12 May 2026US 12,624,054 B2LG Chem.Ltd.
- Curable composition and cured compositions derived therefrom1 Oct 2026US 2026/0297329 A1Rogers Corporation
- Process for preparing an olefin-acrylate block copolymer17 Sep 2026US 2026/0275020 A1
- Method for Producing Copolymer Having Improved Oil Retainability27 Aug 2026US 2026/0250429 A1Kuraray Co., Ltd.
- Polymer compositions for photovoltaic modules20 Aug 2026US 2026/0242526 A1Kraton Corporation
- Conjugated diene - vinyl aromatic hydrocarbon copolymer and method thereof20 Aug 2026US 2026/0242575 A1TSRC Corporation
Most cited
By later US patents
- Drug delivery compositions and medical devices containing block copolymer375US 6,545,097 B2SciMed Life Systems, Inc. · 2003
- (Co)polymers and a novel polymerization process based on atom (or group) transfer radical polymerization287US 5,763,548 ACarnegie Mellon University · 1998
- Block-graft copolymer284US 4,803,243 AShin-Etsu Chemical Co., Ltd. · 1989
- Shape memory polymer resin, composition and the shape memorizing molded product thereof250US 5,189,110 AAsahi Kasei Kogyo Kabushiki Kaisha · 1993
- Ethylene interpolymerizations234US 5,844,045 AThe Dow Chemical Company · 1998