C08F 4/614
With magnesium or compounds thereof
Official title: with magnesium or compounds thereof
C08F4/614 (With magnesium or compounds thereof) appears on 4 US grants and 5 published applications in this corpus.
Search patents in C08F- Granted patents
- 4
- Published applications
- 5
- Assignees
- 5
- Inventors
- 18
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2021 | 0 | 3 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year.
Subgroups
Granted patents
Recent patents
- Heterophasic propylene copolymers15 Jul 2025US 12,359,046 B2Basell Poliolefine Italia S.r.l.
- Catalyst component for olefin polymerization, preparation method thereof, and catalyst including same22 Oct 2024US 12,121,880 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Methods of controlling ziegler-natta pre-catalyst particles formation and use for olefin polymerization17 May 2022US 11,332,557 B2Braskem America, Inc.
- Ziegler-Natta catalyst systems and methods of controlling particle size4 Jan 2022US 11,214,633 B2Braskem America, Inc.
- Spherical catalyst components for olefin polymerization30 May 2024US 2024/0174776 A1W. R. Grace & Co.-Conn.
- Heterophasic propylene copolymers22 Sep 2022US 2022/0298343 A1Basell Poliolefine Italia S.r.l.
- Catalyst component for olefin polymerization, preparation method thereof, and catalyst including same8 Jul 2021US 2021/0205787 A1Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Ziegler-natta catalyst systems and methods of controlling particle size11 Mar 2021US 2021/0070896 A1Braskem America, Inc.
- Methods of controlling ziegler-natta pre-catalyst particles formation and use for olefin polymerization11 Mar 2021US 2021/0070899 A1Braskem America, Inc.
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.