C08F 4/6228
With an aluminoxane, i.e. a compound containing an al-o-al- group
Official title: {with an aluminoxane, i.e. a compound containing an Al-O-Al- group}
C08F4/6228 (With an aluminoxane, i.e. a compound containing an al-o-al- group) appears on 6 US grants and 7 published applications in this corpus.
Search patents in C08F- Granted patents
- 6
- Published applications
- 7
- Assignees
- 6
- Inventors
- 46
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2019 | 0 | 4 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 4 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Catalyst comprising mixed transition metal compounds, polyolefin prepared using the same, and processes for preparing the same26 May 2026US 12,637,525 B2Hanwha Solutions Corporation
- Methods to produce heterogeneous polyethylene granules8 Nov 2022US 11,492,428 B2ExxonMobil Chemical Patents Inc.
- Ziegler-Natta catalysts prepared from solid alkoxymagnesium halide supports25 Oct 2022US 11,478,781 B2Chevron Phillips Chemical Company LP
- Process for gas-phase polymerization of olefins19 Jul 2022US 11,390,695 B2Basell Poliolefine Italia S.r.l.
- Hybrid supported metallocene catalyst, and polyolefin resin having excellent processability and using same15 Feb 2022US 11,248,067 B2Hanwha Chemical Corporation
- Catalyst comprising mixed transition metal compounds, polyolefin prepared using the same, and processes for preparing the same5 Oct 2023US 2023/0312773 A1Hanwha Solutions Corporation
- Ziegler-Natta Catalysts Prepared From Solid Alkoxymagnesium Halide Supports24 Dec 2020US 2020/0398258 A1Chevron Phillips Chemical Company LP
- Process for gas-phase polymerization of olefins30 Jan 2020US 2020/0031957 A1Basell Poliolefine Italia S.r.l.
- Methods to Produce Heterogeneous Polyethylene Granules26 Dec 2019US 2019/0389988 A1ExxonMobil Chemical Patents Inc.
- Alkoxy magnesium supported olefin polymerization catalyst component, catalyst and application thereof10 Oct 2019US 2019/0309100 A1Beijing Lihe Technology Ltd
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.