C08J 2375/04
Polyurethanes
C08J2375/04 (Polyurethanes) appears on 3,676 US grants and 4,117 published applications in this corpus.
Search patents in C08J- Granted patents
- 3,676
- Published applications
- 4,117
- Assignees
- 1,581
- Inventors
- 9,270
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 49 | 0 |
| 1977 | 69 | 0 |
| 1978 | 55 | 0 |
| 1979 | 35 | 0 |
| 1980 | 51 | 0 |
| 1981 | 61 | 0 |
| 1982 | 49 | 0 |
| 1983 | 27 | 0 |
| 1984 | 50 | 0 |
| 1985 | 31 | 0 |
| 1986 | 23 | 0 |
| 1987 | 30 | 0 |
| 1988 | 32 | 0 |
| 1989 | 43 | 0 |
| 1990 | 34 | 0 |
| 1991 | 46 | 0 |
| 1992 | 74 | 0 |
| 1993 | 80 | 0 |
| 1994 | 73 | 0 |
| 1995 | 76 | 0 |
| 1996 | 72 | 0 |
| 1997 | 83 | 0 |
| 1998 | 66 | 0 |
| 1999 | 70 | 0 |
| 2000 | 59 | 0 |
| 2001 | 46 | 16 |
| 2002 | 52 | 51 |
| 2003 | 54 | 76 |
| 2004 | 40 | 63 |
| 2005 | 24 | 72 |
| 2006 | 17 | 74 |
| 2007 | 17 | 73 |
| 2008 | 18 | 57 |
| 2009 | 21 | 86 |
| 2010 | 31 | 106 |
| 2011 | 41 | 102 |
| 2012 | 49 | 133 |
| 2013 | 56 | 121 |
| 2014 | 72 | 164 |
| 2015 | 96 | 193 |
| 2016 | 116 | 229 |
| 2017 | 148 | 226 |
| 2018 | 160 | 228 |
| 2019 | 159 | 292 |
| 2020 | 157 | 256 |
| 2021 | 177 | 251 |
| 2022 | 150 | 318 |
| 2023 | 185 | 276 |
| 2024 | 200 | 273 |
| 2025 | 141 | 213 |
| 2026 | 111 | 168 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08J 2375/08From polyethersIndexing code497
- C08J 2375/06From polyestersIndexing code320
- C08J 2375/14Polyurethanes having carbon-to-carbon unsaturated bondsIndexing code106
- C08J 2375/12From compounds containing nitrogen and active hydrogen, the nitrogen atom not beingIndexing code57
- C08J 2375/10From polyacetalsIndexing code1
Recent patents
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Image sensor with in-pixel background subtraction and motion detection29 Sep 2026US 12,747,338 B2OmniVision Technologies, Inc.
- Method for packaging and transporting compressed foam sponges at up to 20 times higher density than normal without losing shape or size after returning the sponge to its original form22 Sep 2026US 12,741,775 B2
- Polyol premixes, thermally insulating rigid polyurethane foams and methods for their production22 Sep 2026US 12,742,034 B2Covestro LLC
- Polyurethane-reactive system for pultrusion15 Sep 2026US 12,735,526 B2Covestro Deutschland AG
- Material systems and methods of manufacture for auxetic foams1 Oct 2026US 2026/0295909 A1The Florida State University Research Foundation, Inc.
- Method for the Production of a Thermoplastic Polyurethane Powder by Means of Precipitation Polymerisation1 Oct 2026US 2026/0297239 A1Covestro Deutschland AG
- Cyclic poly(hydroxy-urethane) foams in wall and roofing insulation1 Oct 2026US 2026/0297257 A1Johns Manville
- Surface functionalized foams and methods of use thereof1 Oct 2026US 2026/0297258 A1
- Processing petroleum-derived materials1 Oct 2026US 2026/0297268 A1Plastonix Inc.
Most cited
By later US patents
- Foam substrate and micropackaged active ingredient particle composite dispensing materials1,078US 4,828,542 ATwin Rivers Engineering · 1989
- Hydrophilic lubricious coatings466US 5,091,205 AUnion Carbide Chemicals & Plastics Technology Corporation · 1992
- Polyurethane resins having multiple mechanisms of hardening for use in producing three-dimensional objects271US 9,453,142 B2Carbon3D, Inc. · 2016
- Method for bonding silicone rubber and polyurethane materials and articles manufactured thereby213US 5,147,725 ACorvita Corporation · 1992
- Coated substrate having a low coefficient of friction hydrophilic coating and a method of making the same201US 4,119,094 ABiosearch Medical Products Inc. · 1978