C08F 297/06
Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst
Official title: using a catalyst of the coordination type
C08F297/06 (Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst) appears on 793 US grants and 542 published applications in this corpus.
Search patents in C08F- Granted patents
- 793
- Published applications
- 542
- Assignees
- 236
- Inventors
- 1,751
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 15 | 0 |
| 1982 | 13 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 14 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 15 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 14 | 0 |
| 1992 | 15 | 0 |
| 1993 | 16 | 0 |
| 1994 | 24 | 0 |
| 1995 | 20 | 0 |
| 1996 | 10 | 0 |
| 1997 | 19 | 0 |
| 1998 | 28 | 0 |
| 1999 | 11 | 0 |
| 2000 | 17 | 0 |
| 2001 | 41 | 10 |
| 2002 | 34 | 23 |
| 2003 | 32 | 29 |
| 2004 | 26 | 32 |
| 2005 | 16 | 26 |
| 2006 | 15 | 33 |
| 2007 | 17 | 25 |
| 2008 | 12 | 31 |
| 2009 | 17 | 37 |
| 2010 | 27 | 39 |
| 2011 | 35 | 36 |
| 2012 | 35 | 26 |
| 2013 | 24 | 26 |
| 2014 | 29 | 16 |
| 2015 | 30 | 17 |
| 2016 | 12 | 10 |
| 2017 | 14 | 13 |
| 2018 | 14 | 16 |
| 2019 | 16 | 10 |
| 2020 | 6 | 19 |
| 2021 | 5 | 20 |
| 2022 | 22 | 11 |
| 2023 | 5 | 16 |
| 2024 | 13 | 9 |
| 2025 | 5 | 5 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Organozinc compound preparation method, chain transfer agent, block copolymer, and resin composition12 May 2026US 12,624,054 B2LG Chem.Ltd.
- Polyolefin-polystyrene-based multiblock copolymer and method for preparing the same7 Apr 2026US 12,595,330 B2LG Chem.Ltd.
- Synthesis of block polymers based on 1,3-diene and ethylene7 Apr 2026US 12,595,331 B2Centre National De La Recherche Scientifique
- Method for preparing polyolefin-polystyrene-based multiblock copolymer14 Oct 2025US 12,441,830 B2LG Chem.Ltd.
- Thermoplastic resin composition14 Oct 2025US 12,441,877 B2LG Chem.Ltd.
- Process for preparing an olefin-acrylate block copolymer17 Sep 2026US 2026/0275020 A1
- Cationic Polymers And Methods Of Making Same, And Uses Thereof13 Aug 2026US 2026/0233214 A1Carnegie Mellon University
- Process for the production of olefinic block copolymers13 Aug 2026US 2026/0234316 A1Sabic Global Technologies B.V.
- Transparent polypropylene resin and preparation method thereof9 Jul 2026US 2026/0192501 A1Shandong Chambroad Polyolefin Performance Materials Co., Ltd.
- Copolymer, preparation method therefor, vulcanized rubber and use thereof23 Apr 2026US 2026/0109802 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Ethylene interpolymerizations234US 5,844,045 AThe Dow Chemical Company · 1998
- Thermoplastic elastomers of isobutylene and process of preparation221US 4,946,899 AThe University of Akron · 1990
- Narrow MWD alpha-olefin copolymers206US 4,540,753 AExxon Research & Engineering Co. · 1985
- Ethylene interpolymer polymerizations204US 6,566,446 B1Dow Global Technologies LLC · 2003
- Block copolymers from ionic catalysts200US 5,391,629 AExxon Chemical Patents Inc. · 1995