C08F 4/647
Catalysts containing a specific non-metal or metal-free compound
Official title: Catalysts containing a specific non-metal or metal-free compound {(C08F4/64003 - C08F4/64196 take precedence)}
C08F4/647 (Catalysts containing a specific non-metal or metal-free compound) appears on 152 US grants and 182 published applications in this corpus.
Search patents in C08F- Granted patents
- 152
- Published applications
- 182
- Assignees
- 46
- Inventors
- 487
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 3 | 12 |
| 2014 | 4 | 7 |
| 2015 | 10 | 13 |
| 2016 | 8 | 9 |
| 2017 | 7 | 11 |
| 2018 | 15 | 26 |
| 2019 | 13 | 23 |
| 2020 | 19 | 13 |
| 2021 | 17 | 15 |
| 2022 | 14 | 12 |
| 2023 | 10 | 14 |
| 2024 | 7 | 5 |
| 2025 | 14 | 6 |
| 2026 | 3 | 4 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filled automotive polypropylene composition containing recyclates14 Jul 2026US 12,679,961 B2Borealis AG
- Catalyst for propylene polymerization, catalyst system for propylene polymerization, and preparation and use thereof9 Jun 2026US 12,649,800 B2PetroChina Company Limited
- Bidentate biarylphenoxy group IV transition metal catalysts for olefin polymerization with chain transfer agents17 Feb 2026US 12,552,879 B2Dow Global Technologies LLC
- 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
- Preparation of catalyst system25 Nov 2025US 12,479,875 B2Borealis AG
- Transparent polypropylene composition20 Aug 2026US 2026/0242584 A1Basell Poliolefine Italia S.r.l.
- Alpha-nucleated propylene/ethylene/1-butene terpolymer compositions for blown and cast films28 May 2026US 2026/0146151 A1
- Process for the production of catalyst for polyolefin synthesis16 Apr 2026US 2026/0103549 A1Sabic Global Technologies B.V.
- Preparation of catalyst system5 Feb 2026US 2026/0035401 A1Borealis AG
- Catalyst system9 Oct 2025US 2025/0313587 A1Borealis AG
Most cited
By later US patents
- Solid single site catalysts with high polymerisation activity26US 9,670,293 B2Borealis AG · 2017
- Methods for controlling dual catalyst olefin polymerizations with an alcohol compound24US 8,957,168 B1Chevron Phillips Chemical Company LP · 2015
- Catalyst component23US 10,870,718 B2Borealis AG · 2020
- Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its production16US 6,184,328 B2Showa Denko K. K. · 2001
- Procatalyst composition with substitute 1,2-phenylene aromatic diester internal donor and method16US 8,288,585 B2Dow Global Technologies LLC · 2012