C08F 4/6421
Titanium tetrahalides with organo-aluminium compounds
Official title: {Titanium tetrahalides with organo-aluminium compounds}
C08F4/6421 (Titanium tetrahalides with organo-aluminium compounds) appears on 19 US grants and 24 published applications in this corpus.
Search patents in C08F- Granted patents
- 19
- Published applications
- 24
- Assignees
- 23
- Inventors
- 96
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 4 |
| 2020 | 1 | 0 |
| 2021 | 3 | 3 |
| 2022 | 2 | 5 |
| 2023 | 2 | 0 |
| 2024 | 2 | 5 |
| 2025 | 2 | 1 |
| 2026 | 2 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Modified polyethylene resins and process for making the same7 Jul 2026US 12,674,011 B2Dow Global Technologies LLC
- Propylene copolymer, preparation method therefor, and application thereof27 Jan 2026US 12,534,605 B2Dalian University of Technology
- Catalyst composition and a process for preparation thereof26 Aug 2025US 12,398,220 B2Reliance Industries Limited
- 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.
- Method for manufacturing ultra-high molecular weight polypropylene23 Oct 2025US 2025/0326869 A1Korea Petrochemical Ind. Co., Ltd
- Process for preparing an olefin polymer comprising withdrawing a gaseous sample for analyzing1 Aug 2024US 2024/0254264 A1Basell Polyolefine GmbH
- Method for preparing supported olefin polymerization catalyst, resulting catalyst and application thereof23 May 2024US 2024/0166774 A1Zhejiang University
- Molecular weight distribution adjustment of polyethylene by external electron donor22 Feb 2024US 2024/0059812 A1PTT Global Chemical Public Company Limited
- Carbonate Compounds as Activity Limiting Agents in Ziegler-Natta Catalyst Compositions for Olefin Polymerization8 Feb 2024US 2024/0043576 A1Formosa Plastics Corporation, U. S. A
Most cited
By later US patents
- Process for production of high melt flow propylene-based polymer and product from same7US 10,358,505 B2W. R. Grace & Co.-Conn. · 2019
- Process for production of high melt flow propylene-based polymer and product from same1US 11,254,756 B2W. R. Grace & Co.-Conn. · 2022
- Ultrahigh molecular weight propylene (co)polymer1US 11,787,882 B2Resonac Corporation · 2023
- Catalyst components for the polymerization of olefins1US 9,598,511 B2Basell Poliolefine Italia S.r.l. · 2017
- Ziegler-Natta catalysts doped with non-group IV metal chlorides1US 9,944,724 B2Fina Technology, Inc. · 2018