C08F 4/646
Catalysts comprising at least two different metals, in metallic form or as
Official title: Catalysts comprising at least two different metals, in metallic form or as compounds thereof, in addition to the component covered by group C08F4/64 {(C08F4/64003 - C08F4/64196 take precedence)}
C08F4/646 (Catalysts comprising at least two different metals, in metallic form or as) appears on 73 US grants and 93 published applications in this corpus.
Search patents in C08F- Granted patents
- 73
- Published applications
- 93
- Assignees
- 40
- Inventors
- 357
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 6 |
| 2014 | 2 | 3 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 4 |
| 2018 | 2 | 5 |
| 2019 | 1 | 16 |
| 2020 | 10 | 18 |
| 2021 | 11 | 8 |
| 2022 | 13 | 9 |
| 2023 | 7 | 5 |
| 2024 | 3 | 6 |
| 2025 | 7 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filled automotive polypropylene composition containing recyclates14 Jul 2026US 12,679,961 B2Borealis AG
- Ziegler-natta (pro)catalyst systems made with (multi-alkoxy)silane compound19 May 2026US 12,630,655 B2Dow Global Technologies LLC
- Hybrid supported metallocene catalyst and method for preparing polypropylene using the same20 Jan 2026US 12,528,891 B2LG Chem.Ltd.
- Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers9 Dec 2025US 12,492,270 B2Dow Global Technologies LLC
- Catalyst systems and processes for producing polyethylene using the same30 Sep 2025US 12,428,502 B2Dow Global Technologies LLC
- Ziegler-natta catalyst for ethylene polymerization and method for preparing same24 Sep 2026US 2026/0286017 A1Hanwha Solutions Corporation
- Compositon for automotive exterior parts25 Jun 2026US 2026/0176456 A1Borealis AG
- Method for manufacturing ultra-high molecular weight polypropylene23 Oct 2025US 2025/0326869 A1Korea Petrochemical Ind. Co., Ltd
- Process for preparing a propylene composition18 Sep 2025US 2025/0289914 A1Sabic Global Technologies B.V.
- Method for preparing a ziegler-natta catalyst system with improved performance in propylene polymerization3 Apr 2025US 2025/0109223 A1Formosa Plastics Corporation, U. S. A
Most cited
By later US patents
- Crystalline polypropylenes, process for preparing thereof, polypropylene compositions, and thermoformed products44US 6,403,708 B2Mitsui Chemicals, Inc. · 2002
- Process for producing olefin polymers, olefin-polymerizing catalyst and polypropylene for biaxially oriented film produced with said catalyst17US 6,127,303 ASumitomo Chemical Company, Limited · 2000
- Process for producing olefin polymers, olefin-polymerizing catalyst and polyproylene for biaxially oriented film produced with said catalyst15US 6,337,377 B12002
- Organosilicon compound, catalyst for olefin polymer production, and method for producing olefin polymer12US 6,552,136 B1Idemitsu Petrochemical Co., Ltd. · 2003
- Propylene homopolymer11US 6,090,903 AToho Titanium Co., Ltd. · 2000