C08F 4/658
With metals or metal-containing compounds, not provided for in a single group
Official title: with metals or metal-containing compounds, not provided for in a single group of groups C08F4/653 - C08F4/657
C08F4/658 (With metals or metal-containing compounds, not provided for in a single group) appears on 30 US grants and 31 published applications in this corpus.
Search patents in C08F- Granted patents
- 30
- Published applications
- 31
- Assignees
- 9
- Inventors
- 59
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2016 | 5 | 9 |
| 2017 | 1 | 6 |
| 2018 | 8 | 5 |
| 2019 | 1 | 4 |
| 2020 | 4 | 4 |
| 2021 | 5 | 2 |
| 2022 | 2 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year.
Subgroups
Granted patents
Recent patents
- Process for preparing solid catalyst components for olefin polymerization4 Mar 2025US 12,240,925 B2W. R. Grace & Co.-Conn.
- Olefin polymer and method for producing olefin polymer27 Feb 2024US 11,912,796 B2Toho Titanium Co., Ltd.
- Catalyst components for propylene polymerization25 Apr 2023US 11,634,520 B2W. R. Grace & Co.-Conn.
- Ziegler-Natta catalysts for the production of polyethylene3 Jan 2023US 11,542,344 B2Dow Global Technologies LLC
- Ultra-high molecular weight, ultra-fine particle size polyethylene, preparation method therefor and use thereof20 Dec 2022US 11,530,281 B2Institute of Chemistry, Chinese Academy of Sciences
- Process for preparing solid catalyst components for olefin polymerization15 Sep 2022US 2022/0289881 A1W. R. Grace & Co.-Conn.
- Ziegler-natta catalysts for the production of polyethylene16 Dec 2021US 2021/0388124 A1Dow Global Technologies LLC
- Olefin polymer and method for producing olefin polymer11 Feb 2021US 2021/0040245 A1Toho Titanium Co., Ltd.
- Catalyst Components for Propylene Polymerization10 Sep 2020US 2020/0283553 A1W. R. Grace & Co.-Conn.
- Dilution index10 Sep 2020US 2020/0283605 A9NOVA Chemicals (International) S.A.
Most cited
By later US patents
- Dilution index21US 9,512,282 B2NOVA Chemicals (International) S.A. · 2016
- Caps and closures19US 9,505,893 B2NOVA Chemicals (International) S.A. · 2016
- Rotomolded articles12US 9,695,309 B2NOVA Chemicals (International) S.A. · 2017
- Rotomolded articles10US 10,023,706 B2NOVA Chemicals (International) S.A. · 2018
- Rotomolded articles10US 9,512,283 B2NOVA Chemicals (International) S.A. · 2016