C08G 18/72
Polyisocyanates or polyisothiocyanates
C08G18/72 (Polyisocyanates or polyisothiocyanates) appears on 10,647 US grants and 12,968 published applications in this corpus.
Search patents in C08G- Granted patents
- 10,647
- Published applications
- 12,968
- Assignees
- 2,855
- Inventors
- 22,704
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 89 | 0 |
| 1977 | 80 | 0 |
| 1978 | 87 | 0 |
| 1979 | 66 | 0 |
| 1980 | 82 | 0 |
| 1981 | 106 | 0 |
| 1982 | 73 | 0 |
| 1983 | 82 | 0 |
| 1984 | 97 | 0 |
| 1985 | 97 | 0 |
| 1986 | 96 | 0 |
| 1987 | 100 | 0 |
| 1988 | 107 | 0 |
| 1989 | 129 | 0 |
| 1990 | 100 | 0 |
| 1991 | 127 | 0 |
| 1992 | 167 | 0 |
| 1993 | 148 | 0 |
| 1994 | 107 | 0 |
| 1995 | 100 | 0 |
| 1996 | 119 | 0 |
| 1997 | 98 | 0 |
| 1998 | 159 | 0 |
| 1999 | 149 | 0 |
| 2000 | 148 | 0 |
| 2001 | 142 | 48 |
| 2002 | 176 | 173 |
| 2003 | 163 | 278 |
| 2004 | 151 | 287 |
| 2005 | 120 | 274 |
| 2006 | 148 | 268 |
| 2007 | 110 | 320 |
| 2008 | 89 | 321 |
| 2009 | 114 | 375 |
| 2010 | 164 | 428 |
| 2011 | 194 | 452 |
| 2012 | 208 | 421 |
| 2013 | 272 | 471 |
| 2014 | 347 | 491 |
| 2015 | 377 | 579 |
| 2016 | 377 | 582 |
| 2017 | 449 | 660 |
| 2018 | 421 | 679 |
| 2019 | 504 | 777 |
| 2020 | 531 | 876 |
| 2021 | 554 | 906 |
| 2022 | 476 | 933 |
| 2023 | 533 | 736 |
| 2024 | 548 | 713 |
| 2025 | 467 | 525 |
| 2026 | 299 | 395 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 18/74Cyclic5,956
- C08G 18/77Having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen3,464
- C08G 18/80Masked polyisocyanates2,402
- C08G 18/73Acyclic1,660
- C08G 18/721Two or more polyisocyanates not provided for in one single group c08g18/73812
- C08G 18/728Polymerisation products of compounds having carbon-to-carbon unsaturated bonds and having isocyanate or139
Recent patents
- Cover coating with good adhesion on polyurethane and polyurea membranes6 Oct 2026US 12,753,267 B2Sika Technology AG
- Thermoplastic polyurethane based polymeric electrolyte composition6 Oct 2026US 12,753,268 B2Huntsman International LLC
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Non-aqueous cross-linkable composition6 Oct 2026US 12,753,324 B2Allnex Resins (China) Co., Ltd.
- Polymerizable composition for optical material, optical material, and use thereof29 Sep 2026US 12,747,336 B2Mitsui Chemicals, Inc.
- Resin composition, resin solution, and method for producing crosslinked coating film8 Oct 2026US 2026/0308304 A1Mitsubishi Gas Chemical Company, Inc.
- Recycleable bioplastics, methods of manufacture thereof and articles comprising the same8 Oct 2026US 2026/0308306 A1University of Connecticut
- Lamination adhesive8 Oct 2026US 2026/0308430 A1Bostik SA
- Method for the Production of a Thermoplastic Polyurethane Powder by Means of Precipitation Polymerisation1 Oct 2026US 2026/0297239 A1Covestro Deutschland AG
- Pre-treatment of polyether polyols or silicone polyether surfactants1 Oct 2026US 2026/0297240 A1Dow Global Technologies LLC
Most cited
By later US patents
- Process for preparing amide acetals1,464US 7,439,354 B2E. I. Du Pont de Nemours and Company · 2008
- 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
- Medical device coated with interpenetrating network of hydrogel polymers538US 6,120,904 ASchneider (USA) Inc. · 2000
- Hydrophilic and hydrophobic polyether polyurethanes and uses therefor530US 5,993,972 ATyndale Plains-Hunter, Ltd. · 1999