C08G 18/4833
Polyethers containing oxyethylene units
Official title: {Polyethers containing oxyethylene units}
C08G18/4833 (Polyethers containing oxyethylene units) appears on 1,805 US grants and 2,269 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,805
- Published applications
- 2,269
- Assignees
- 772
- Inventors
- 5,216
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 10 | 0 |
| 1978 | 23 | 0 |
| 1979 | 12 | 0 |
| 1980 | 20 | 0 |
| 1981 | 20 | 0 |
| 1982 | 22 | 0 |
| 1983 | 16 | 0 |
| 1984 | 16 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 15 | 0 |
| 1989 | 20 | 0 |
| 1990 | 22 | 0 |
| 1991 | 27 | 0 |
| 1992 | 35 | 0 |
| 1993 | 17 | 0 |
| 1994 | 16 | 0 |
| 1995 | 17 | 0 |
| 1996 | 24 | 0 |
| 1997 | 32 | 0 |
| 1998 | 30 | 0 |
| 1999 | 21 | 0 |
| 2000 | 16 | 0 |
| 2001 | 14 | 3 |
| 2002 | 19 | 28 |
| 2003 | 29 | 37 |
| 2004 | 17 | 40 |
| 2005 | 19 | 39 |
| 2006 | 19 | 47 |
| 2007 | 12 | 62 |
| 2008 | 14 | 40 |
| 2009 | 12 | 67 |
| 2010 | 29 | 73 |
| 2011 | 19 | 65 |
| 2012 | 34 | 65 |
| 2013 | 34 | 93 |
| 2014 | 52 | 89 |
| 2015 | 62 | 90 |
| 2016 | 84 | 99 |
| 2017 | 72 | 101 |
| 2018 | 49 | 136 |
| 2019 | 99 | 136 |
| 2020 | 100 | 163 |
| 2021 | 90 | 176 |
| 2022 | 87 | 180 |
| 2023 | 104 | 146 |
| 2024 | 92 | 129 |
| 2025 | 103 | 98 |
| 2026 | 65 | 67 |
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
- Polyol premixes, thermally insulating rigid polyurethane foams and methods for their production22 Sep 2026US 12,742,034 B2Covestro LLC
- 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
- Composition and method for a root canal filling8 Sep 2026US 12,728,078 B2Rutgers, The State University of New Jersey
- Polyurethane polyisocyanate, method for producing polyurethane polyisocyanate, polyisocyanate composition, adhesive, layered product, and packaging material1 Oct 2026US 2026/0297401 A1DIC Corporation
- Isocyanate-reactive compositions, rigid polyurethane foams and methods for their production24 Sep 2026US 2026/0286035 A1Covestro LLC
- Thermally Conductive Polyurethane Adhesive Composition for Batteries in Electric Vehicles17 Sep 2026US 2026/0275172 A1Henkel AG & Co. KGaA
- Polyurethane foam having tuneable porosity in wide range10 Sep 2026US 2026/0265443 A1Shell USA, Inc.
- Aqueous dispersion of polyurethane resin and coating agent3 Sep 2026US 2026/0258186 A1DKS Co. Ltd.
Most cited
By later US patents
- Wound dressing materials1,148US 4,233,969 A1980
- Fast curing compositions996US 6,894,140 B2Tyco Healthecare Gropu LP · 2005
- Polyurethane/polyurea compositions containing silicone for biosensor membranes783US 5,882,494 AMiniMed Inc. · 1999
- Extended wear ophthalmic lens578US 5,760,100 ACIBA Vision Corporation · 1998
- Medical device coated with interpenetrating network of hydrogel polymers538US 6,120,904 ASchneider (USA) Inc. · 2000