C08G 2650/58
Ethylene oxide or propylene oxide copolymers
Official title: Ethylene oxide or propylene oxide copolymers, e.g. pluronics
C08G2650/58 (Ethylene oxide or propylene oxide copolymers) appears on 183 US grants and 270 published applications in this corpus.
Search patents in C08G- Granted patents
- 183
- Published applications
- 270
- Assignees
- 169
- Inventors
- 704
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 7 |
| 2003 | 2 | 6 |
| 2004 | 5 | 6 |
| 2005 | 2 | 4 |
| 2006 | 1 | 2 |
| 2007 | 3 | 1 |
| 2008 | 2 | 9 |
| 2009 | 0 | 13 |
| 2010 | 6 | 16 |
| 2011 | 5 | 10 |
| 2012 | 11 | 10 |
| 2013 | 7 | 9 |
| 2014 | 7 | 15 |
| 2015 | 7 | 15 |
| 2016 | 11 | 19 |
| 2017 | 10 | 19 |
| 2018 | 13 | 19 |
| 2019 | 17 | 12 |
| 2020 | 17 | 9 |
| 2021 | 11 | 11 |
| 2022 | 7 | 14 |
| 2023 | 7 | 23 |
| 2024 | 8 | 12 |
| 2025 | 12 | 5 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual catalyst system for mass vinyl addition and cationic polymerizable compositions22 Sep 2026US 12,742,041 B2Promerus, LLC
- In situ thiol-maleimide crosslinked hydrogel for immune checkpoint blockade delivery1 Sep 2026US 12,723,081 B2Georgia Tech Research Corporation
- Alkylene oxide polymerization using aluminum compounds and cyclic amidines26 May 2026US 12,637,541 B2Dow Global Technologies LLC
- Alkylene oxide polymerization using aluminum compounds and phosphorus-nitrogen bases14 Apr 2026US 12,600,816 B2Dow Global Technologies LLC
- Foam control agents for fermentation24 Mar 2026US 12,584,097 B2Dow Global Technologies LLC
- Stabilized biopolymer composition, their manufacture and use30 Jul 2026US 2026/0216349 A1Base SE
- Alkoxylation processes using monocationic and dicationic cyclopentadienyl phosphorus catalysts30 Jul 2026US 2026/0217912 A1Dow Global Technologies LLC
- Branched Wetting Agents for Enhanced Treatment of Drought Field Conditions9 Jul 2026US 2026/0193536 A1Milliken & Company
- Alkylene oxide polymerization using aluminum compounds and phosphorus-nitrogen bases2 Jul 2026US 2026/0184848 A1Dow Global Technologies LLC
- End-Modified Branched Block Copolymers As Dual-Functional Soil Surfactants and Humectants27 Nov 2025US 2025/0361350 A1Milliken & Company
Most cited
By later US patents
- Block copolymer processing for mesostructured inorganic oxide materials131US 6,592,764 B1The Regents of the University of California · 2003
- Crosslinked hydrogel copolymers71US 6,800,663 B2Alkermes Controlled Therapeutics Inc. II · 2004
- Stabilization and acoustic activation of polymeric micelles for drug delivery53US 6,649,702 B1Brigham Young University · 2003
- Block copolymer processing for mesostructured inorganic oxide materials50US 7,176,245 B2The Regents of the University of California · 2007
- Process for preparing polyether alcohols with DMC catalysts using compounds bearing SiH groups as additives39US 8,324,325 B2Evonik Goldschmidt GmbH · 2012