C08F 2500/01
High molecular weight
Official title: High molecular weight, e.g. >800,000 Da.
C08F2500/01 (High molecular weight) appears on 168 US grants and 209 published applications in this corpus.
Search patents in C08F- Granted patents
- 168
- Published applications
- 209
- Assignees
- 111
- Inventors
- 620
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 3 |
| 2015 | 3 | 3 |
| 2016 | 2 | 11 |
| 2017 | 8 | 16 |
| 2018 | 11 | 68 |
| 2019 | 31 | 57 |
| 2020 | 46 | 14 |
| 2021 | 34 | 10 |
| 2022 | 7 | 6 |
| 2023 | 14 | 4 |
| 2024 | 5 | 5 |
| 2025 | 1 | 3 |
| 2026 | 3 | 4 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Surface gradient cross-linking method of ultra-high molecular weight polyethylene and the application thereof16 Jun 2026US 12,655,237 B2b-ONE Medical Biotech Corporation
- Dual catalyst system for producing high density polyethylenes with long chain branching26 May 2026US 12,637,526 B2Chevron Phillips Chemical Company LP
- Polymerization of purge stream containing 1-octene6 Jan 2026US 12,516,138 B2Dow Global Technologies LLC
- Acrylated and acylated or acetalized polyol as a biobased substitute for hard, rigid thermoplastic and thermoset materials3 Jun 2025US 12,319,091 B2Iowa State University Research Foundation, Inc.
- Method for treating a polymer workpiece for use in a joint implant11 Jun 2024US 12,004,955 B2Waldemar Link GmbH & Co. KG
- Dual Catalyst System for Producing High Density Polyethylenes With Long Chain Branching10 Sep 2026US 2026/0265420 A1Chevron Phillips Chemical Company LP
- Phosphine-phenol half-metallocene complex, and preparation method therefor and use thereof14 May 2026US 2026/0132161 A1China Petroleum & Chemical Corporation
- Ultrahigh-molecular-weight polyolefin separator and method for preparing same5 Mar 2026US 2026/0062506 A1Shanghai Energy New Materials Technology Co., Ltd.
- Polymer Composition for Maxillofacial Implants and Implants Made Therefrom26 Feb 2026US 2026/0053625 A1Celanese International Corporation
- Process for the production of an ultra-high molecular weight polyethylene film by extrusion8 May 2025US 2025/0145779 A1Nowofol Kunststoffprodukte GmbH & Co. KG
Most cited
By later US patents
- Dual catalyst system for producing LLDPE copolymers with improved processability33US 10,358,506 B2Chevron Phillips Chemical Company LP · 2019
- Door assembly21US 9,803,413 B22017
- Bimodal polyethylene resins and pipes produced therefrom14US 10,590,213 B2Chevron Phillips Chemical Company LP · 2020
- Dual catalyst system for producing high density polyethylenes with long chain branching12US 11,014,997 B2Chevron Phillips Chemical Company LP · 2021
- High performances multimodal ultra high molecular weight polyethylene10US 10,919,991 B2SCG Chemicals Co., Ltd. · 2021