C08G 18/4829
Polyethers containing at least three hydroxy groups
Official title: {Polyethers containing at least three hydroxy groups (C08G18/4833 - C08G18/5096 take precedence)}
C08G18/4829 (Polyethers containing at least three hydroxy groups) appears on 746 US grants and 1,178 published applications in this corpus.
Search patents in C08G- Granted patents
- 746
- Published applications
- 1,178
- Assignees
- 395
- Inventors
- 2,683
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 3 |
| 2004 | 2 | 6 |
| 2005 | 3 | 6 |
| 2006 | 1 | 8 |
| 2007 | 1 | 12 |
| 2008 | 0 | 10 |
| 2009 | 5 | 15 |
| 2010 | 2 | 20 |
| 2011 | 8 | 17 |
| 2012 | 14 | 23 |
| 2013 | 9 | 31 |
| 2014 | 13 | 32 |
| 2015 | 17 | 55 |
| 2016 | 33 | 57 |
| 2017 | 28 | 57 |
| 2018 | 38 | 84 |
| 2019 | 43 | 102 |
| 2020 | 71 | 92 |
| 2021 | 67 | 107 |
| 2022 | 52 | 128 |
| 2023 | 60 | 85 |
| 2024 | 77 | 81 |
| 2025 | 65 | 74 |
| 2026 | 28 | 71 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Polyurethane-reactive system for pultrusion15 Sep 2026US 12,735,526 B2Covestro Deutschland AG
- Solventless adhesive compositions and laminate materials prepared with the same15 Sep 2026US 12,735,612 B2Arkema France
- Semi-crystalline two-part polyurethane adhesives from amorphous components25 Aug 2026US 12,716,019 B2Lord Corporation
- Flexible food packaging laminates18 Aug 2026US 12,709,702 B2Sun Chemical Corporation
- Polyurethane insulation foam composition comprising a stabilizing compound17 Sep 2026US 2026/0275024 A1Huntsman International LLC
- Radiation curable compositions for coating optical fibers27 Aug 2026US 2026/0250540 A1Covestro LLC
- Solventless adhesive compositions and laminate materials prepared with the same27 Aug 2026US 2026/0250566 A1Arkema France
- Multilayer structures containing low viscosity polyurethane pottant compositions20 Aug 2026US 2026/0241664 A1
- Closed-cell water-blown rigid polyurethane foams and methods for their production20 Aug 2026US 2026/0242530 A1Covestro LLC
Most cited
By later US patents
- Hydrophilic polyurethane gel foams, particularly for treating deep wounds, wound dressing based on hydrophilic polyurethane gel foams and method of manufacture132US 5,844,013 ABeiersdorf AG · 1998
- Gel pads and a process for their preparation106US 4,456,642 ABayer Aktiengesellschaft · 1984
- Liquid segment polyurethane gel and couplers for ultrasonic diagnostic probe comprising the same77US 5,039,774 ATakiron Co., Ltd. · 1991
- Biocompatible, low protein adsorption affinity matrix71US 5,403,750 AW. R. Grace & Co.-Conn. · 1995
- Methylolated mono- and oligosaccharides70US 4,322,523 ABayer Aktiengesellschaft · 1982