C08G 18/7657
Containing two or more aromatic rings
Official title: {containing two or more aromatic rings}
C08G18/7657 (Containing two or more aromatic rings) appears on 2,898 US grants and 4,373 published applications in this corpus.
Search patents in C08G- Granted patents
- 2,898
- Published applications
- 4,373
- Assignees
- 1,252
- Inventors
- 8,052
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 13 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 15 | 0 |
| 1983 | 11 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 18 | 0 |
| 1991 | 24 | 0 |
| 1992 | 32 | 0 |
| 1993 | 25 | 0 |
| 1994 | 18 | 0 |
| 1995 | 18 | 0 |
| 1996 | 15 | 0 |
| 1997 | 11 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 25 | 0 |
| 2001 | 16 | 8 |
| 2002 | 27 | 29 |
| 2003 | 23 | 29 |
| 2004 | 21 | 41 |
| 2005 | 20 | 47 |
| 2006 | 19 | 48 |
| 2007 | 13 | 73 |
| 2008 | 10 | 65 |
| 2009 | 24 | 70 |
| 2010 | 25 | 100 |
| 2011 | 36 | 92 |
| 2012 | 45 | 106 |
| 2013 | 59 | 155 |
| 2014 | 93 | 171 |
| 2015 | 91 | 182 |
| 2016 | 137 | 242 |
| 2017 | 157 | 258 |
| 2018 | 158 | 266 |
| 2019 | 206 | 329 |
| 2020 | 217 | 360 |
| 2021 | 227 | 372 |
| 2022 | 204 | 402 |
| 2023 | 206 | 288 |
| 2024 | 248 | 259 |
| 2025 | 189 | 220 |
| 2026 | 92 | 161 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- 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
- Polyurethane-reactive system for pultrusion15 Sep 2026US 12,735,526 B2Covestro Deutschland AG
- 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.
- Polyurethanes from depolymerized lignin containing lignin monomers8 Sep 2026US 12,729,265 B2Vito NV
- Recycleable bioplastics, methods of manufacture thereof and articles comprising the same8 Oct 2026US 2026/0308306 A1University of Connecticut
- Method for the Production of a Thermoplastic Polyurethane Powder by Means of Precipitation Polymerisation1 Oct 2026US 2026/0297239 A1Covestro Deutschland AG
- Polyurethane polyisocyanate, method for producing polyurethane polyisocyanate, polyisocyanate composition, adhesive, layered product, and packaging material1 Oct 2026US 2026/0297401 A1DIC Corporation
- Polyol compositions and uses thereof in polyurethane foams24 Sep 2026US 2026/0286038 A1
- Polyurethane insulation foam composition comprising a stabilizing compound17 Sep 2026US 2026/0275024 A1Huntsman International LLC
Most cited
By later US patents
- Fast curing compositions996US 6,894,140 B2Tyco Healthecare Gropu LP · 2005
- At least partially resorbable reticulated elastomeric matrix elements and methods of making same952US 9,050,176 B2Biomerix Corporation · 2015
- Membranes of polyurethane based materials including polyester polyols423US 6,013,340 ANIKE, Inc. · 2000
- Segmented polyether polyurethane385US 4,849,458 AMatrix Medica, Inc. · 1989
- Membranes of polyurethane based materials including polyester polyols364US 6,321,465 B1NIKE, Inc. · 2001