C08G 18/3203
Polyhydroxy compounds
Official title: {Polyhydroxy compounds}
C08G18/3203 (Polyhydroxy compounds) appears on 2,228 US grants and 3,224 published applications in this corpus.
Search patents in C08G- Granted patents
- 2,228
- Published applications
- 3,224
- Assignees
- 1,014
- Inventors
- 6,759
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 11 | 0 |
| 1980 | 16 | 0 |
| 1981 | 17 | 0 |
| 1982 | 12 | 0 |
| 1983 | 18 | 0 |
| 1984 | 11 | 0 |
| 1985 | 24 | 0 |
| 1986 | 13 | 0 |
| 1987 | 16 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 20 | 0 |
| 1993 | 17 | 0 |
| 1994 | 12 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 18 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 17 | 0 |
| 2001 | 15 | 5 |
| 2002 | 16 | 13 |
| 2003 | 25 | 31 |
| 2004 | 16 | 42 |
| 2005 | 14 | 52 |
| 2006 | 16 | 45 |
| 2007 | 14 | 74 |
| 2008 | 18 | 53 |
| 2009 | 26 | 66 |
| 2010 | 25 | 71 |
| 2011 | 26 | 70 |
| 2012 | 37 | 71 |
| 2013 | 52 | 91 |
| 2014 | 79 | 118 |
| 2015 | 83 | 158 |
| 2016 | 90 | 151 |
| 2017 | 122 | 200 |
| 2018 | 114 | 188 |
| 2019 | 118 | 232 |
| 2020 | 157 | 261 |
| 2021 | 178 | 265 |
| 2022 | 146 | 306 |
| 2023 | 170 | 177 |
| 2024 | 145 | 192 |
| 2025 | 135 | 179 |
| 2026 | 81 | 113 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 18/3206Aliphatic1,573
- C08G 18/3215Containing aromatic groups or benzoquinone groups288
- C08G 18/3212Containing cycloaliphatic groups201
- C08G 18/3221Hydroxylated esters of carboxylic acids other than higher fatty acids154
- C08G 18/3218Containing cyclic groups having at least one oxygen atom in the ring121
Recent patents
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Method of obtaining information on the recyclability of at least one flexible foam made at least partially of at least one polyurethane6 Oct 2026US 12,755,255 B2BASF Polyurethanes GmbH
- Aqueous self-crosslinkable polyurethane dispersions22 Sep 2026US 12,742,035 B2BASF SE
- Hydrophilic acrylic-modified polyurethane and method for preparing same, and water-based paint composition prepared therefrom and manufacturing method thereof22 Sep 2026US 12,742,036 B2Samyang Corporation
- Compound, binder resin, negative-type photosensitive resin composition, and display device comprising black bank formed using same15 Sep 2026US 12,736,876 B2LG Chem.Ltd.
- Method for the Production of a Thermoplastic Polyurethane Powder by Means of Precipitation Polymerisation1 Oct 2026US 2026/0297239 A1Covestro Deutschland AG
- Dual cure 3d printing resins17 Sep 2026US 2026/0275022 A1Stratasys, Inc.
- Polyurethane insulation foam composition comprising a stabilizing compound17 Sep 2026US 2026/0275024 A1Huntsman International LLC
- Thermally Conductive Polyurethane Adhesive Composition for Batteries in Electric Vehicles17 Sep 2026US 2026/0275172 A1Henkel AG & Co. KGaA
- Polythiol, polymerizable composition for optical materials, optical material, and method for producing same10 Sep 2026US 2026/0265439 A1Hoya Lens Thailand Ltd.
Most cited
By later US patents
- At least partially resorbable reticulated elastomeric matrix elements and methods of making same952US 9,050,176 B2Biomerix Corporation · 2015
- Polyurethane polymers characterized by lactone groups and hydroxyl groups in the polymer backbone158US 4,156,067 ATyndale Plains-Hunter, Ltd. · 1979
- Polysiloxane prepolymers for biomedical devices119US 7,423,074 B2Bausch & Lomb Incorporated · 2008
- Vinyl functionalized urethane resins for powder coating compositions117US 10,072,179 B2Dsm IP Assets B.V. · 2018
- Biomedical apparatus having fatty acid dimer derived skin compatible adhesive composition thereon108US 5,176,956 AMedtronic, Inc. · 1993