C08F 4/64068
Dianionic ligand
Official title: {Dianionic ligand}
C08F4/64068 (Dianionic ligand) appears on 7 US grants and 9 published applications in this corpus.
Search patents in C08F- Granted patents
- 7
- Published applications
- 9
- Assignees
- 9
- Inventors
- 30
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 2 |
| 2024 | 0 | 1 |
| 2025 | 4 | 1 |
By publication year.
Subgroups
Granted patents
Recent patents
- Biphenol metal complex, preparation method therefor and use thereof23 Dec 2025US 12,503,525 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers9 Dec 2025US 12,492,270 B2Dow Global Technologies LLC
- Catalyst for olefin polymerization and polymerization method using same21 Oct 2025US 12,448,468 B2Bejing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Catalyst systems and processes for producing polyethylene using the same30 Sep 2025US 12,428,502 B2Dow Global Technologies LLC
- Metallocene catalyst compound for production of polyolefin resin or method of preparing same23 Nov 2021US 11,180,589 B2DL Chemical CO., LTD.
- Borate cocatalysts for polyolefin production24 Apr 2025US 2025/0129191 A1Dow Global Technologies LLC
- Catalysts18 Jul 2024US 2024/0239925 A1Oxford University Innovation Limited
- Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers14 Sep 2023US 2023/0287159 A1Dow Global Technologies LLC
- Catalyst systems and processes for producing polyethylene using the same27 Jul 2023US 2023/0235099 A1Dow Global Technologies LLC
- Biphenol metal complex, preparation method therefor and use thereof1 Dec 2022US 2022/0380397 A1Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
Most cited
By later US patents