C08F 4/659
Component covered by group c08f4/64 containing a transition metal-carbon bond
Official title: Component covered by group C08F4/64 containing a transition metal-carbon bond {(C08F4/64003 - C08F4/64196 take precedence)}
C08F4/659 (Component covered by group c08f4/64 containing a transition metal-carbon bond) appears on 4,406 US grants and 3,912 published applications in this corpus.
Search patents in C08F- Granted patents
- 4,406
- Published applications
- 3,912
- Assignees
- 535
- Inventors
- 5,031
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 16 | 0 |
| 1991 | 27 | 0 |
| 1992 | 23 | 0 |
| 1993 | 39 | 0 |
| 1994 | 46 | 0 |
| 1995 | 64 | 0 |
| 1996 | 78 | 0 |
| 1997 | 114 | 0 |
| 1998 | 121 | 0 |
| 1999 | 98 | 0 |
| 2000 | 162 | 0 |
| 2001 | 237 | 70 |
| 2002 | 254 | 186 |
| 2003 | 213 | 199 |
| 2004 | 158 | 204 |
| 2005 | 159 | 165 |
| 2006 | 158 | 143 |
| 2007 | 117 | 117 |
| 2008 | 74 | 117 |
| 2009 | 84 | 150 |
| 2010 | 106 | 125 |
| 2011 | 111 | 125 |
| 2012 | 99 | 123 |
| 2013 | 126 | 141 |
| 2014 | 122 | 115 |
| 2015 | 123 | 121 |
| 2016 | 140 | 162 |
| 2017 | 134 | 166 |
| 2018 | 130 | 165 |
| 2019 | 132 | 190 |
| 2020 | 142 | 155 |
| 2021 | 179 | 215 |
| 2022 | 141 | 211 |
| 2023 | 114 | 175 |
| 2024 | 102 | 169 |
| 2025 | 141 | 116 |
| 2026 | 103 | 87 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08F 4/65912In combination with an organoaluminium compound3,424
- C08F 4/6592Containing at least one cyclopentadienyl ring, condensed or not2,701
- C08F 4/65916Supported on a carrier1,662
- C08F 4/65908In combination with an ionising compound other than alumoxane1,584
- C08F 4/65904In combination with another component of c08f4/64341
Recent patents
- Thermoplastic resin composition6 Oct 2026US 12,753,300 B2LG Chem.Ltd.
- Propylene copolymers obtained using transition metal bis(phenolate) catalyst complexes and homogeneous process for production thereof29 Sep 2026US 12,747,311 B2ExxonMobil Technology and Engineering Company
- Olefinic polymer, and method for preparing same15 Sep 2026US 12,735,515 B2Hanwha Solutions Corporation
- Method for producing catalyst for polymerization of olefin, catalyst for polymerization of olefin, and method for producing polymer of olefin15 Sep 2026US 12,735,525 B2Toho Titanium Co., Ltd.
- Composition for encapsulant film and encapsulant film comprising the same8 Sep 2026US 12,729,256 B2LG Chem.Ltd.
- Ethylene/alpha-olefin copolymer and preparation method thereof8 Oct 2026US 2026/0308291 A1China Petroleum & Chemical Corporation
- Process for preparing an olefin-acrylate block copolymer17 Sep 2026US 2026/0275020 A1
- Asymmetrical hafnium metallocenes10 Sep 2026US 2026/0265283 A1Dow Global Technologies LLC
- Symmetrical hafnium metallocene for making polymers with broad-orthogonal composition distributions10 Sep 2026US 2026/0265284 A1Dow Global Technologies LLC
- Dual Catalyst System for Producing High Density Polyethylenes With Long Chain Branching10 Sep 2026US 2026/0265420 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Elastic substantially linear olefin polymers1,374US 5,272,236 AThe Dow Chemical Company · 1993
- Elastic substantialy linear olefin polymers1,117US 5,278,272 AThe Dow Chemical Company · 1994
- Supported polymerization catalyst710US 4,808,561 AExxon Chemical Patents Inc. · 1989
- Ionic metallocene catalyst compositions596US 5,198,401 AExxon Chemical Patents Inc. · 1993
- Catalyst system of enhanced productivity544US 5,153,157 AExxon Chemical Patents Inc. · 1992