C08F 2420/08
Heteroatom bridge, i.e. cp or analog where the bridging atom linking the
Official title: Heteroatom bridge, i.e. Cp or analog where the bridging atom linking the two Cps or analogs is a heteroatom different from Si
C08F2420/08 (Heteroatom bridge, i.e. cp or analog where the bridging atom linking the) appears on 60 US grants and 67 published applications in this corpus.
Search patents in C08F- Granted patents
- 60
- Published applications
- 67
- Assignees
- 20
- Inventors
- 144
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 4 |
| 2004 | 1 | 1 |
| 2005 | 3 | 3 |
| 2006 | 0 | 3 |
| 2007 | 3 | 2 |
| 2008 | 2 | 0 |
| 2009 | 1 | 0 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 4 |
| 2016 | 4 | 9 |
| 2017 | 4 | 7 |
| 2018 | 7 | 4 |
| 2019 | 6 | 4 |
| 2020 | 1 | 0 |
| 2021 | 2 | 3 |
| 2022 | 0 | 5 |
| 2023 | 3 | 6 |
| 2024 | 0 | 2 |
| 2025 | 3 | 3 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Metallocene catalysts for producing vinyl-terminated polyalphaolefins and methods associated therewith28 Jul 2026US 12,692,327 B2ExxonMobil Chemical Patents Inc.
- Polyethylene and preparation method thereof2 Jun 2026US 12,643,963 B2LG Chem.Ltd.
- Metallocene supported catalyst and method for preparing olefine polymer using the same5 May 2026US 12,617,877 B2LG Chem.Ltd.
- Alkylation of transition metal coordination catalyst complexes20 Jan 2026US 12,528,892 B2ExxonMobil Chemical Patents Inc.
- Preparation of catalyst system25 Nov 2025US 12,479,875 B2Borealis AG
- Polyethylene Resin Composition21 May 2026US 2026/0139129 A1
- Preparation of catalyst system5 Feb 2026US 2026/0035401 A1Borealis AG
- Olefin polymerization metallocene catalyst composition, preparation thereof and use thereof18 Dec 2025US 2025/0382400 A1PetroChina Company Limited
- Catalyst system9 Oct 2025US 2025/0313587 A1Borealis AG
- Polyethylene composition with improved processability28 Aug 2025US 2025/0270356 A1Borealis AG
Most cited
By later US patents
- Metallocene compound72US 5,532,396 AHoechst Aktiengesellschaft · 1996
- Dual catalyst systems for producing polymers with a broad molecular weight distribution and a uniform short chain branch distribution43US 9,217,049 B2Chevron Phillips Chemical Company LP · 2015
- Supported activator29US 7,220,695 B2ExxonMobil Chemical Patents Inc. · 2007
- Process for preparing olefin polymer with catalyst containing metallocene28US 5,612,428 AHoechst Aktiengesellschaft · 1997
- Metallocene-based catalysts27US 5,576,260 AHoechst Aktiengesellschaft · 1996