C08G 65/2648
Alkali metals or compounds thereof
Official title: {Alkali metals or compounds thereof}
C08G65/2648 (Alkali metals or compounds thereof) appears on 74 US grants and 83 published applications in this corpus.
Search patents in C08G- Granted patents
- 74
- Published applications
- 83
- Assignees
- 66
- Inventors
- 299
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 3 |
| 2004 | 4 | 2 |
| 2005 | 2 | 4 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 5 |
| 2010 | 0 | 16 |
| 2011 | 3 | 11 |
| 2012 | 1 | 1 |
| 2013 | 6 | 2 |
| 2014 | 6 | 3 |
| 2015 | 3 | 1 |
| 2016 | 1 | 1 |
| 2017 | 3 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 4 |
| 2022 | 2 | 3 |
| 2023 | 5 | 6 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Processes for purifying polyether polyols using ion exchange resins6 Jan 2026US 12,515,212 B2Covestro LLC
- Low foaming hydraulic fluids having biodegradable polyalkylene glycol rheology modifiers useful in subsea applications18 Nov 2025US 12,473,399 B2Dow Global Technologies LLC
- Preparation of alkylcyclohexanol polyoxyethylene ether emulsifier and application thereof15 Oct 2024US 12,116,455 B2Jiangnan University
- High-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether and preparation method19 Dec 2023US 11,845,831 B2Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd.
- One method of producing polyether polymer dispersant and polyether polymer13 Jun 2023US 11,673,987 B2Huaian Bud Polyurethane Science & Technology Co., Ltd
- Process for manufacturing polyalkylene glycols1 Oct 2026US 2026/0297251 A1BASF SE
- Controlled addition of ligand in polyol synthesis30 Jul 2026US 2026/0217898 A1Repsol, S. A.
- Alkali-metal phenolic compounds and uses thereof18 Jun 2026US 2026/0167773 A1Universidad De Alcala
- Liquid polyethylene glycols14 May 2026US 2026/0132252 A1
- Acidic gas-absorbing liquid and acidic gas reduction method30 Apr 2026US 2026/0115649 A1AGC Inc.
Most cited
By later US patents
- Production of polyether polyols with reduced unsaturation41US 5,114,619 AThe Dow Chemical Company · 1992
- Production of polyether polyols with reduced unsaturation34US 5,010,187 AThe Dow Chemical Company · 1991
- Process for production of alkyllene oxide polymers34US 6,979,722 B2Sumitomo Seika Chemicals Co., Ltd. · 2005
- Process for the preparation of polyoxyalkylene block polyethers having enhanced properties33US 4,764,567 ABASF SE · 1988
- Primary polyether active hydrogen compounds which are prepared from linked, protectively initiated polyalkyleneoxides32US 4,943,626 AThe Dow Chemical Company · 1990