C08G 18/3278
Containing at least three hydroxy groups
Official title: {containing at least three hydroxy groups}
C08G18/3278 (Containing at least three hydroxy groups) appears on 176 US grants and 229 published applications in this corpus.
Search patents in C08G- Granted patents
- 176
- Published applications
- 229
- Assignees
- 124
- Inventors
- 502
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 3 |
| 2004 | 0 | 1 |
| 2005 | 2 | 3 |
| 2006 | 2 | 3 |
| 2007 | 0 | 22 |
| 2008 | 4 | 5 |
| 2009 | 2 | 5 |
| 2010 | 1 | 6 |
| 2011 | 3 | 5 |
| 2012 | 3 | 3 |
| 2013 | 5 | 10 |
| 2014 | 12 | 11 |
| 2015 | 5 | 3 |
| 2016 | 7 | 15 |
| 2017 | 13 | 11 |
| 2018 | 8 | 16 |
| 2019 | 7 | 12 |
| 2020 | 11 | 18 |
| 2021 | 15 | 20 |
| 2022 | 16 | 16 |
| 2023 | 6 | 15 |
| 2024 | 11 | 12 |
| 2025 | 3 | 7 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sulfur containing polyisocyanate polyaddition (PIPA) polyol with improved flame retardant properties and foams containing them8 Sep 2026US 12,729,264 B2Dow Global Technologies LLC
- Rigid polyurethane foam and multilayer thermal insulation assemblies containing the foam9 Jun 2026US 12,649,815 B2Dow Global Technologies LLC
- Chemically modified shape memory polymer embolic foams with increased X-ray visualization19 May 2026US 12,630,664 B2The Texas A&M University System
- Dimensionally stable polyurethanes and composites12 May 2026US 12,624,147 B2Dow Global Technologies LLC
- Mechanical reticulation of polymeric-based closed cell foams24 Feb 2026US 12,558,825 B2Lawrence Livermore National Security, LLC
- Polyurethane-polyurea aqueous dispersion, and preparation method therefor and use thereof27 Aug 2026US 2026/0250455 A1Wanhua Chemical Group Co., Ltd.
- Composite made of randomly bonded polymer fiber loops and polyurethane foam20 Aug 2026US 2026/0242598 A1Dow Global Technologies LLC
- Mechanical Reticulation Of Polymeric-Based Closed Cell Foams25 Jun 2026US 2026/0175477 A1Lawrence Livermore National Security, LLC
- Liquid base product, liquid formulated product, liquid final product, biodegradable solid product and biodegradable product fabrication process7 May 2026US 2026/0125507 A1Hdgl LLC
- Polyurethane-resin-forming composition, and film sealing material and film module each obtained using said polyurethane- resin-forming composition9 Apr 2026US 2026/0098121 A1Tosoh Corporation
Most cited
By later US patents
- Vinyl-group-containing dendrimer and curable composition56US 6,187,897 B1Toyo Ink Manufacturing Co., Ltd. · 2001
- Poly(ureaurethane)s, articles and coatings prepared therefrom and methods of making the same35US 8,349,986 B2PPG Industries Ohio, Inc. · 2013
- One-step method of coating nutrient particles34US 4,969,947 AMelamine Chemicals, Inc. · 1990
- Preparing urethane polymer mixing isocyanate and premix of hydroxylated tertiary amine providing a crystalline polymer phase and polyol providing an amorphous polymer phase interdispersed with crystalline phase33US 4,677,157 A1987
- Irreversible immobilization of enzymes into polyurethane coatings33US 7,335,400 B2Bayer Material Science AG · 2008