D21H 17/53
Polyethers
Official title: Polyethers; Polyesters
D21H17/53 (Polyethers) appears on 225 US grants and 190 published applications in this corpus.
Search patents in D21H- Granted patents
- 225
- Published applications
- 190
- Assignees
- 172
- Inventors
- 670
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 8 |
| 2003 | 5 | 9 |
| 2004 | 8 | 12 |
| 2005 | 4 | 5 |
| 2006 | 2 | 5 |
| 2007 | 4 | 11 |
| 2008 | 2 | 7 |
| 2009 | 3 | 4 |
| 2010 | 7 | 4 |
| 2011 | 2 | 6 |
| 2012 | 1 | 13 |
| 2013 | 5 | 5 |
| 2014 | 7 | 6 |
| 2015 | 1 | 12 |
| 2016 | 4 | 9 |
| 2017 | 7 | 6 |
| 2018 | 6 | 7 |
| 2019 | 5 | 8 |
| 2020 | 7 | 12 |
| 2021 | 13 | 9 |
| 2022 | 1 | 2 |
| 2023 | 4 | 9 |
| 2024 | 6 | 10 |
| 2025 | 6 | 5 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biopolymer composition and its use as a powder coating11 Aug 2026US 12,703,947 B2Brightplus Oy
- Aqueous biodegradable-resin dispersion, production method therefor, and food-packaging paper obtained using aqueous biodegradable-resin dispersion7 Apr 2026US 12,595,626 B2Miyoshi Oil & Fat Co., Ltd.
- Coating compositions for use in creped paper product manufacturing and methods for producing the same13 Jan 2026US 12,522,747 B2Solenis Technologies, L.P.
- Filter media16 Dec 2025US 12,497,737 B2SWM Holdings US, LLC
- Biodegradable and compostable food packaging unit from a moulded pulp material, and method for manufacturing such food packaging unit7 Oct 2025US 12,434,892 B2Huhtamaki Molded Fiber Technology B,V,
- Packing material and manufacturing method of packing material13 Aug 2026US 2026/0234872 A1Sony Group Corporation
- Woven fabric30 Jul 2026US 2026/0218420 A1Spinnova Oyj
- Resin composition for t-die extrusion molding23 Jul 2026US 2026/0209510 A1Kaneka Corporation
- Nonwoven fabrics, products comprising the same and methods for manufacturing nonwoven fabrics23 Jul 2026US 2026/0210049 A1Spinnova Oyj
- Compositions for Fibreboards with Enhanced Properties Upon Fast-Curing at Low Temperature22 Jan 2026US 2026/0022245 A1Covestro (Netherlands) B.V.
Most cited
By later US patents
- End use applications of biodegradable polymers1,525US 5,444,113 AEcopol, LLC · 1995
- Blends of polyactic acid312US 5,216,050 ABioPak Technology, Ltd. · 1993
- Degradable polymer composition271US 5,502,158 AEcopol, LLC · 1996
- Degradable polymer composition231US 5,834,582 AChronopol, Inc. · 1998
- Degradation control of environmentally degradable disposable materials223US 6,323,307 B1Cargill Dow Polymers, LLC · 2001