C08F 2420/04
Cp or analog not bridged to a non-cp x ancillary anionic donor
Official title: Cp or analog not bridged to a non-Cp X ancillary anionic donor
C08F2420/04 (Cp or analog not bridged to a non-cp x ancillary anionic donor) appears on 225 US grants and 215 published applications in this corpus.
Search patents in C08F- Granted patents
- 225
- Published applications
- 215
- Assignees
- 72
- Inventors
- 405
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 3 |
| 2002 | 4 | 4 |
| 2003 | 6 | 3 |
| 2004 | 4 | 9 |
| 2005 | 7 | 1 |
| 2006 | 2 | 8 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 3 | 2 |
| 2010 | 7 | 7 |
| 2011 | 4 | 8 |
| 2012 | 7 | 8 |
| 2013 | 4 | 8 |
| 2014 | 5 | 10 |
| 2015 | 12 | 7 |
| 2016 | 14 | 22 |
| 2017 | 10 | 24 |
| 2018 | 24 | 14 |
| 2019 | 14 | 9 |
| 2020 | 12 | 12 |
| 2021 | 9 | 5 |
| 2022 | 5 | 15 |
| 2023 | 7 | 13 |
| 2024 | 5 | 7 |
| 2025 | 11 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Linear high-density ethylene interpolymer compositions25 Aug 2026US 12,715,983 B2NOVA Chemicals (International) S.A.
- Ethylene interpolymers catalyzed using mixed homogeneous catalyst formulations10 Mar 2026US 12,570,778 B2NOVA Chemicals (International) S.A.
- Linear high-density polyethylene with high toughness and high ESCR3 Mar 2026US 12,565,579 B2NOVA Chemicals (International) S.A.
- Ethylene-copolymers and catalyst mixture for making ethylene copolymers24 Feb 2026US 12,559,581 B2Arlanxeo Netherlands B.V.
- Biphenol metal complex, preparation method therefor and use thereof23 Dec 2025US 12,503,525 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Ethylene/alpha-olefin copolymer and preparation method thereof8 Oct 2026US 2026/0308291 A1China Petroleum & Chemical Corporation
- Multimodal polymerization processes with multi-catalyst systems12 Mar 2026US 2026/0071016 A1Dow Global Technologies LLC
- Multimodal polymerization processes with multi-catalyst systems26 Feb 2026US 2026/0055213 A1Dow Global Technologies LLC
- Organometallic complex, olefin polymerization catalyst system and polymerization process14 Aug 2025US 2025/0257084 A1NOVA Chemicals (International) S.A.
- Process for producing polymers3 Jul 2025US 2025/0215118 A1Arlanxeo Netherlands B.V.
Most cited
By later US patents
- Polymerization of .alpha.-olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety209US 5,637,660 ALyondell Petrochemical Company · 1997
- Catalyst composition, method of polymerization, and polymer therefrom116US 6,274,684 B1Univation Technologies, LLC · 2001
- Heterogeneous/homogeneous copolymer115US 6,984,695 B2NOVA Chemicals (International) S.A. · 2006
- Transition metal olefin polymerization catalysts97US 5,504,049 AExxon Chemical Patents Inc. · 1996
- Organometal compound catalyst72US 6,833,338 B2Phillips Petroleum Company · 2004