C08G 18/4816
Mixtures of two or more polyetherpolyols having at least three hydroxy groups
Official title: {mixtures of two or more polyetherpolyols having at least three hydroxy groups}
C08G18/4816 (Mixtures of two or more polyetherpolyols having at least three hydroxy groups) appears on 275 US grants and 448 published applications in this corpus.
Search patents in C08G- Granted patents
- 275
- Published applications
- 448
- Assignees
- 143
- Inventors
- 1,046
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 1 |
| 2003 | 3 | 4 |
| 2004 | 3 | 4 |
| 2005 | 1 | 6 |
| 2006 | 0 | 6 |
| 2007 | 3 | 6 |
| 2008 | 1 | 7 |
| 2009 | 1 | 10 |
| 2010 | 5 | 16 |
| 2011 | 3 | 10 |
| 2012 | 6 | 12 |
| 2013 | 8 | 22 |
| 2014 | 8 | 16 |
| 2015 | 14 | 17 |
| 2016 | 17 | 32 |
| 2017 | 12 | 25 |
| 2018 | 11 | 30 |
| 2019 | 13 | 35 |
| 2020 | 29 | 32 |
| 2021 | 15 | 34 |
| 2022 | 16 | 31 |
| 2023 | 15 | 26 |
| 2024 | 21 | 25 |
| 2025 | 21 | 27 |
| 2026 | 9 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Rigid polyurethane foam and multilayer thermal insulation assemblies containing the foam9 Jun 2026US 12,649,815 B2Dow Global Technologies LLC
- Dimensionally stable polyurethanes and composites12 May 2026US 12,624,147 B2Dow Global Technologies LLC
- Polyurethane insulation foam composition comprising a stabilizing compound14 Apr 2026US 12,600,813 B2Huntsman International LLC
- Preparation of polyurethane systems7 Apr 2026US 12,595,332 B2Evonik Operations GmbH
- Closed-cell water-blown rigid polyurethane foams and methods for their production20 Aug 2026US 2026/0242530 A1Covestro LLC
- Polyurethane composition for rotational molding and use thereof30 Jul 2026US 2026/0217895 A1BASF SE
- Polyurethane foam with eo/po copolymer16 Jul 2026US 2026/0201103 A1BASF SE
- Polyurethane foam-forming reaction mixtures, polyurethane foams formed therefrom, and methods for their production and use16 Jul 2026US 2026/0201107 A1Covestro LLC
- Polyurethane insulation foam composition comprising a stabilizing compound4 Jun 2026US 2026/0152598 A1Huntsman International LLC
Most cited
By later US patents
- Gel compounds, their production and use98US 5,362,834 ABayer Aktiengesellschaft · 1994
- Novel compositions and process76US 4,385,133 AThe Upjohn Company · 1983
- Polyurethane foams having improved heat sag and a process for their production63US 6,649,667 B2Bayer Polymers LLC · 2003
- Process for preparation of SiOC-linked, linear polydimethylsiloxane-polyoxyalkylene block copolymers58US 7,645,848 B2Goldschmidt GmbH · 2010
- Compositions containing polyether-polysiloxane copolymers54US 8,623,984 B2Evonik Goldschmidt GmbH · 2014