C08F 4/645
Component covered by group c08f4/64 with a metal or compound covered by
Official title: Component covered by group C08F4/64 with a metal or compound covered by group C08F4/44, not provided for in a single group of groups C08F4/642 - C08F4/643 {(C08F4/60003 - C08F4/60196 take precedence)}
C08F4/645 (Component covered by group c08f4/64 with a metal or compound covered by) appears on 9 US grants and 11 published applications in this corpus.
Search patents in C08F- Granted patents
- 9
- Published applications
- 11
- Assignees
- 7
- Inventors
- 44
- Latest grant
- 24 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 4 |
| 2018 | 5 | 3 |
| 2019 | 2 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year.
Subgroups
Granted patents
Recent patents
- Olefin polymerization catalyst carrier, solid catalyst component and use thereof24 Aug 2021US 11,098,142 B2Renqiu Lihe Technology Ltd.
- Process control for long chain branching control in polyethylene production24 Dec 2019US 10,513,572 B2Univation Technologies, LLC
- Catalyst components for the polymerization of olefins19 Feb 2019US 10,208,135 B2Basell Poliolefine Italia S.r.l.
- Process control for long chain branching control in polyethylene production18 Dec 2018US 10,155,831 B2Univation Technologies, LLC
- Production method for olefin-based polymer, and olefin polymerization catalyst11 Dec 2018US 10,150,825 B2Idemitsu Kosan Co., Ltd.
- Method for preparing catalyst component for polymerization of polyolefin without the use of internal electron donors3 Apr 2025US 2025/0109218 A1Formosa Plastics Corporation, U. S. A
- Olefin polymerization catalyst carrier, solid catalyst component and use thereof6 Jun 2019US 2019/0169328 A1Renqiu Lihe Technology Ltd.
- Process control for long chain branching control in polyethylene production17 Jan 2019US 2019/0016835 A1Univation Technologies, LLC
- Catalyst components for the polymerization of olefins16 Aug 2018US 2018/0230247 A1Basell Poliolefine Italia S.r.l.
- Catalyst components for the polymerization of olefins1 Mar 2018US 2018/0057620 A1Basell Poliolefine Italia S.r.l.
Most cited
By later US patents
- Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina30US 9,758,599 B2Chevron Phillips Chemical Company LP · 2017
- Process control for long chain branching control in polyethylene production2US 10,513,572 B2Univation Technologies, LLC · 2019
- Production method for olefin-based polymer, and olefin polymerization catalyst1US 10,150,825 B2Idemitsu Kosan Co., Ltd. · 2018
- Process control for long chain branching control in polyethylene production1US 10,155,831 B2Univation Technologies, LLC · 2018
- Catalyst components for the polymerization of olefins1US 10,208,135 B2Basell Poliolefine Italia S.r.l. · 2019