C08G 18/4804
Two or more polyethers of different physical or chemical nature
Official title: {Two or more polyethers of different physical or chemical nature}
C08G18/4804 (Two or more polyethers of different physical or chemical nature) appears on 1,427 US grants and 1,802 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,427
- Published applications
- 1,802
- Assignees
- 551
- Inventors
- 3,894
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 7 | 0 |
| 1986 | 12 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 12 | 0 |
| 1990 | 18 | 0 |
| 1991 | 21 | 0 |
| 1992 | 24 | 0 |
| 1993 | 31 | 0 |
| 1994 | 17 | 0 |
| 1995 | 26 | 0 |
| 1996 | 21 | 0 |
| 1997 | 33 | 0 |
| 1998 | 25 | 0 |
| 1999 | 20 | 0 |
| 2000 | 22 | 0 |
| 2001 | 18 | 3 |
| 2002 | 20 | 35 |
| 2003 | 43 | 53 |
| 2004 | 34 | 31 |
| 2005 | 11 | 40 |
| 2006 | 15 | 33 |
| 2007 | 18 | 52 |
| 2008 | 6 | 42 |
| 2009 | 12 | 49 |
| 2010 | 13 | 62 |
| 2011 | 24 | 62 |
| 2012 | 37 | 52 |
| 2013 | 44 | 74 |
| 2014 | 26 | 60 |
| 2015 | 35 | 71 |
| 2016 | 58 | 90 |
| 2017 | 61 | 90 |
| 2018 | 48 | 119 |
| 2019 | 65 | 112 |
| 2020 | 76 | 107 |
| 2021 | 81 | 126 |
| 2022 | 63 | 113 |
| 2023 | 72 | 95 |
| 2024 | 69 | 88 |
| 2025 | 80 | 90 |
| 2026 | 37 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 18/4812Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups440
- C08G 18/482Mixtures of polyethers containing at least one polyether containing nitrogen324
- C08G 18/4808Mixtures of two or more polyetherdiols286
- C08G 18/4816Mixtures of two or more polyetherpolyols having at least three hydroxy groups275
Recent patents
- Method for the production of a polyurethane sandwich element6 Oct 2026US 12,753,284 B2Covestro Deutschland AG
- Fiber base material and artificial leather11 Aug 2026US 12,703,767 B2DIC Corporation
- Liquid moisture curable polyurethane with improved adhesion to aluminum11 Aug 2026US 12,703,808 B2Henkel AG & Co. KGaA
- Aqueous polyurethane emulsion for ultra-thin polyurethane condom with low modulus and high strength, and preparation method therefor28 Jul 2026US 12,692,340 B2Reckitt Benckiser Health Limited
- Cycloaliphatic aldimine mixture28 Jul 2026US 12,692,368 B2Sika Technology AG
- Polyurethane polyisocyanate, method for producing polyurethane polyisocyanate, polyisocyanate composition, adhesive, layered product, and packaging material1 Oct 2026US 2026/0297401 A1DIC Corporation
- Polyurethane insulation foam composition comprising a stabilizing compound17 Sep 2026US 2026/0275024 A1Huntsman International LLC
- Seat pad10 Sep 2026US 2026/0265442 A1Inoac Corporation
- Polymer composition which can be cured at room temperature and which is made of polyaldehyde and polymalonate27 Aug 2026US 2026/0250454 A1Sika Technology AG
- Solventless adhesive compositions and laminate materials prepared with the same27 Aug 2026US 2026/0250566 A1Arkema France
Most cited
By later US patents
- Hydrophilic and hydrophobic polyether polyurethanes and uses therefor530US 5,993,972 ATyndale Plains-Hunter, Ltd. · 1999
- Surface-modifying endgroups for biomedical polymers517US 5,589,563 AThe Polymer Technology Group · 1996
- Segmented polyether polyurethane385US 4,849,458 AMatrix Medica, Inc. · 1989
- Systems for premeating molecules of predetermined molecular weight range361US 5,756,632 AThe Polymer Technology Group · 1998
- Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range303US 5,428,123 AThe Polymer Technology Group · 1995