C08F 2500/09
Long chain branches
C08F2500/09 (Long chain branches) appears on 99 US grants and 115 published applications in this corpus.
Search patents in C08F- Granted patents
- 99
- Published applications
- 115
- Assignees
- 27
- Inventors
- 214
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 4 | 4 |
| 2016 | 9 | 20 |
| 2017 | 7 | 16 |
| 2018 | 17 | 22 |
| 2019 | 17 | 15 |
| 2020 | 12 | 4 |
| 2021 | 10 | 8 |
| 2022 | 5 | 6 |
| 2023 | 6 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Alpha-olefin interpolymers with improved molecular design for photovoltaic encapsulants20 Jan 2026US 12,528,897 B2Dow Global Technologies LLC
- Processes for preparing metallocene-based catalyst systems for the control of long chain branch content4 Mar 2025US 12,240,933 B2Chevron Phillips Chemical Company LP
- Method of controlling polyethylene architecture1 Oct 2024US 12,103,995 B2Braskem S/A
- Polyolefin9 Jul 2024US 12,031,021 B2Hanwha Solutions Corporation
- Processes for preparing metallocene-based catalyst systems for the control of long chain branch content2 Apr 2024US 11,945,897 B2Chevron Phillips Chemical Company LP
- Supported olefin polymerization catalysts comprising substituted 2-hydroxythiophene compounds8 Oct 2026US 2026/0308284 A1Dow Global Technologies LLC
- Processes for Making Polyolefins with Composition Control6 Feb 2025US 2025/0043034 A1
- Processes for preparing metallocene-based catalyst systems for the control of long chain branch content25 Jul 2024US 2024/0247085 A1Chevron Phillips Chemical Company LP
- Producing polyolefin products7 Mar 2024US 2024/0076427 A1Univation Technologies, LLC
- Processes for preparing metallocene-based catalyst systems for the control of long chain branch content8 Feb 2024US 2024/0043577 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Catalyst compositions and polyolefins for extrusion coating applications239US 7,041,617 B2Chevron Phillips Chemical Company LP · 2006
- Low density polyolefin resins and films made therefrom75US 9,006,367 B2Chevron Phillips Chemical Company LP · 2015
- Long chain branched polymers and methods of making same43US 9,023,967 B2Chevron Phillips Chemical Company LP · 2015
- Catalyst compositions and polyolefins for extrusion coating applications40US 7,456,243 B2Chevron Phillips Chemical Company LP · 2008
- Long chain branched polymers and methods of making same32US 9,598,513 B2Chevron Phillips Chemical Company LP · 2017