C08F 4/642
Component covered by group c08f4/64 with an organo-aluminium compound
Official title: Component covered by group C08F4/64 with an organo-aluminium compound {(C08F4/64003 - C08F4/64196 take precedence)}
C08F4/642 (Component covered by group c08f4/64 with an organo-aluminium compound) appears on 123 US grants and 147 published applications in this corpus.
Search patents in C08F- Granted patents
- 123
- Published applications
- 147
- Assignees
- 64
- Inventors
- 509
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 3 |
| 2013 | 2 | 6 |
| 2014 | 4 | 5 |
| 2015 | 3 | 4 |
| 2016 | 4 | 2 |
| 2017 | 3 | 4 |
| 2018 | 7 | 12 |
| 2019 | 6 | 28 |
| 2020 | 10 | 18 |
| 2021 | 20 | 21 |
| 2022 | 23 | 15 |
| 2023 | 14 | 7 |
| 2024 | 6 | 11 |
| 2025 | 9 | 2 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Modified polyethylene resins and process for making the same7 Jul 2026US 12,674,011 B2Dow Global Technologies LLC
- Process for preparation of a catalyst with a polyolefin coat16 Jun 2026US 12,655,234 B2Reliance Industries Limited
- Catalyst comprising mixed transition metal compounds, polyolefin prepared using the same, and processes for preparing the same26 May 2026US 12,637,525 B2Hanwha Solutions Corporation
- Composition and cured product thereof12 May 2026US 12,624,220 B2Denka Company Limited
- Propylene copolymer, preparation method therefor, and application thereof27 Jan 2026US 12,534,605 B2Dalian University of Technology
- A process for preparing propylene-ethylene random copolymers for pipe applications3 Sep 2026US 2026/0258174 A1Borealis AG
- Catalyst transition process23 Jul 2026US 2026/0209404 A1Borealis AG
- Transparent polypropylene resin and preparation method thereof9 Jul 2026US 2026/0192501 A1Shandong Chambroad Polyolefin Performance Materials Co., Ltd.
- Solid catalyst component mixture for polymerizing olefins, catalyst for polymerizing olefins, and production method of polymer of olefins22 Jan 2026US 2026/0022198 A1Toho Titanium Co., Ltd.
- Method for manufacturing ultra-high molecular weight polypropylene23 Oct 2025US 2025/0326869 A1Korea Petrochemical Ind. Co., Ltd
Most cited
By later US patents
- Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates32US 8,329,834 B2Chevron Phillips Chemical Company LP · 2012
- Methods of preparing a catalyst system23US 9,234,060 B2Univation Technologies, LLC · 2016
- Supported Salan catalysts16US 9,120,879 B2ExxonMobil Chemical Patents Inc. · 2015
- Polymerization catalyst for ethylene homopolymerization15US 4,684,703 AUnion Carbide Corporation · 1987
- Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates15US 8,450,436 B2Chevron Phillips Chemical Company LP · 2013