C08G 2110/0025
Rigid
Official title: rigid
C08G2110/0025 (Rigid) appears on 1,203 US grants and 1,146 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,203
- Published applications
- 1,146
- Assignees
- 440
- Inventors
- 2,548
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 10 | 0 |
| 1978 | 16 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 19 | 0 |
| 1984 | 28 | 0 |
| 1985 | 13 | 0 |
| 1986 | 13 | 0 |
| 1987 | 13 | 0 |
| 1988 | 16 | 0 |
| 1989 | 12 | 0 |
| 1990 | 17 | 0 |
| 1991 | 26 | 0 |
| 1992 | 41 | 0 |
| 1993 | 42 | 0 |
| 1994 | 26 | 0 |
| 1995 | 44 | 0 |
| 1996 | 36 | 0 |
| 1997 | 39 | 0 |
| 1998 | 24 | 0 |
| 1999 | 30 | 0 |
| 2000 | 25 | 0 |
| 2001 | 25 | 5 |
| 2002 | 30 | 30 |
| 2003 | 28 | 43 |
| 2004 | 24 | 35 |
| 2005 | 7 | 29 |
| 2006 | 10 | 22 |
| 2007 | 9 | 39 |
| 2008 | 3 | 31 |
| 2009 | 11 | 35 |
| 2010 | 11 | 33 |
| 2011 | 18 | 59 |
| 2012 | 25 | 54 |
| 2013 | 42 | 46 |
| 2014 | 25 | 62 |
| 2015 | 27 | 41 |
| 2016 | 39 | 56 |
| 2017 | 38 | 40 |
| 2018 | 31 | 49 |
| 2019 | 30 | 62 |
| 2020 | 43 | 66 |
| 2021 | 31 | 67 |
| 2022 | 29 | 76 |
| 2023 | 37 | 44 |
| 2024 | 46 | 49 |
| 2025 | 32 | 38 |
| 2026 | 14 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Blasthole stemming based on formaldehyde resins, system and charging method6 Oct 2026US 12,754,001 B2Oxiquim S.A.
- Polyol premixes, thermally insulating rigid polyurethane foams and methods for their production22 Sep 2026US 12,742,034 B2Covestro LLC
- Isocyanate-reactive compositions, rigid polyurethane foams and methods for their production14 Jul 2026US 12,679,922 B2Covestro LLC
- Stabilizer, polymer polyol prepared using stabilizer and method for preparing polymer polyol7 Jul 2026US 12,674,014 B2Korea Kumho Petrochemical Co., Ltd.
- Rigid polyurethane foam and multilayer thermal insulation assemblies containing the foam9 Jun 2026US 12,649,815 B2Dow Global Technologies LLC
- Isocyanate-reactive compositions, rigid polyurethane foams and methods for their production24 Sep 2026US 2026/0286035 A1Covestro LLC
- Polyurethane insulation foam composition comprising a stabilizing compound17 Sep 2026US 2026/0275024 A1Huntsman International LLC
- Production of flame-retardent polyurethane foam10 Sep 2026US 2026/0265440 A1Evonik Operations GmbH
- Imide-containing polyester polyols and intumescent rigid foams10 Sep 2026US 2026/0265445 A1Stepan Company
- Production of polyurethane foam3 Sep 2026US 2026/0258247 A1Evonik Operations GmbH
Most cited
By later US patents
- Cured unsaturated polyester-polyurethane hybrid highly filled resin foams115US 5,302,634 AHoppmann Corporation · 1994
- Cured unsaturated polyester-polyurethane hybrid highly filled resin foams101US 5,369,147 AEcomat, Inc. · 1994
- Method for treating polypropylene ether and poly-1,2-butylene ether polyols88US 4,355,188 AThe General Tire & Rubber Company · 1982
- Process for the preparation of polyurethane rigid foams having a low thermal conductivity and their use80US 5,096,933 A1992
- Cured unsaturated polyest-polyurethane highly filled resin materials and process for preparing them77US 5,604,266 AEcomat, Inc. · 1997