C08F 4/6425
Containing magnesium
Official title: {containing magnesium}
C08F4/6425 (Containing magnesium) appears on 21 US grants and 25 published applications in this corpus.
Search patents in C08F- Granted patents
- 21
- Published applications
- 25
- Assignees
- 16
- Inventors
- 124
- Latest grant
- 16 Jun 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 4 |
| 2019 | 3 | 7 |
| 2020 | 2 | 3 |
| 2021 | 4 | 1 |
| 2022 | 5 | 4 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for preparation of a catalyst with a polyolefin coat16 Jun 2026US 12,655,234 B2Reliance Industries Limited
- Propylene copolymer, preparation method therefor, and application thereof27 Jan 2026US 12,534,605 B2Dalian University of Technology
- Polyolefin catalyst component containing mesoporous material, preparation method therefor and use thereof8 Jul 2025US 12,351,671 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Production of high melt flow propylene-based polymer and product from same28 May 2024US 11,993,672 B2W. R. Grace & Co.-Conn.
- Multi- or dual-headed compositions useful for chain shuttling and process to prepare the same14 Jun 2022US 11,359,035 B2Dow Global Technologies LLC
- Catalyst composition for polymerizing propylene and method for producing polypropylene31 Oct 2024US 2024/0360251 A1Formosa Plastics Corporation
- A ziegler-natta catalyst system and a process of polymerisation therefrom27 Jul 2023US 2023/0235102 A1Reliance Industries Limited
- Catalyst component for olefin polymerization or copolymerization and preparation method therefor, and application22 Jun 2023US 2023/0192915 A1Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Propylene copolymer, preparation method therefor, and application thereof8 Dec 2022US 2022/0389205 A1Dalian University of Technology
- A process for preparation of a catalyst with a polyolefin coat22 Sep 2022US 2022/0298271 A1Reliance Industries Limited
Most cited
By later US patents
- Polymerization catalyst for ethylene homopolymerization15US 4,684,703 AUnion Carbide Corporation · 1987
- Process for production of high melt flow propylene-based polymer and product from same7US 10,358,505 B2W. R. Grace & Co.-Conn. · 2019
- Ethylene copolymer having enhanced film properties3US 10,676,552 B2NOVA Chemicals (International) S.A. · 2020
- Heterophasic propylene copolymers2US 10,494,517 B1Basell Poliolefine Italia S.r.l. · 2019
- Capped multi- or dual-headed compositions useful for chain shuttling and process to prepare the same2US 11,359,038 B2Dow Global Technologies LLC · 2022