D04H 1/4358
Polyurethanes
D04H1/4358 (Polyurethanes) appears on 71 US grants and 104 published applications in this corpus.
Search patents in D04H- Granted patents
- 71
- Published applications
- 104
- Assignees
- 64
- Inventors
- 266
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 2 |
| 2002 | 0 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 5 |
| 2007 | 1 | 2 |
| 2008 | 1 | 4 |
| 2009 | 0 | 1 |
| 2010 | 1 | 4 |
| 2011 | 2 | 0 |
| 2012 | 0 | 3 |
| 2013 | 2 | 1 |
| 2014 | 2 | 3 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 3 | 3 |
| 2018 | 1 | 9 |
| 2019 | 0 | 5 |
| 2020 | 3 | 6 |
| 2021 | 2 | 4 |
| 2022 | 10 | 17 |
| 2023 | 10 | 4 |
| 2024 | 4 | 10 |
| 2025 | 7 | 5 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fibers, fiber multilayer structure, spinning solution for electrospinning, and method for producing fibers7 Jul 2026US 12,674,017 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- In situ chromatic biosensor28 Apr 2026US 12,611,665 B2University of Manitoba
- Polyurethane nanofiber waterproof moisture-permeable film, preparation method thereof and application thereof3 Mar 2026US 12,565,718 B2Jiaxing Sibaite Nanofiber Technology Co., Ltd
- Preparation method of material for puncture-resistant artificial blood vessel and artificial blood vessel prepared thereby27 Jan 2026US 12,533,224 B2Wuhan Youngsen Biotech Co., Ltd.
- Process for manufacturing a polymer nonwoven, process for using a semifinished nonwoven product and process for using a polymer nonwoven6 Jan 2026US 12,516,459 B2Friedrich-Alexander-Universität Erlangen-Nürnberg Körpershaft des öffentlichen Rechts
- Fibers, fiber multilayer structure, spinning solution for electrospinning, and method for producing fibers1 Oct 2026US 2026/0297241 A1Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Polyether ester polyol, preparation method therefor, and method for preparing polyurethane elastomer by using polyether ester polyol13 Aug 2026US 2026/0234325 A1Zhengzhou Zhongyuan Spandex Engineering Technology Co., Ltd
- In situ CHROMATIC BIOSENSOR6 Aug 2026US 2026/0224161 A1University of Manitoba
- Polyurethane elastic fiber9 Jul 2026US 2026/0193816 A1
- Recyclable, asymmetrical-faced composite nonwoven textile having thermal bond structures30 Apr 2026US 2026/0116038 A1NIKE, Inc.
Most cited
By later US patents
- Thermoplastic polymer blends and nonwoven webs prepared therefrom120US 4,806,598 AKimberly-Clark Corporation · 1989
- Composite elastic material having multistage elongation characteristics and method of manufacturing the same85US 6,069,097 AParagon Trade Brands, Inc. · 2000
- Ultrafine fiber entangled sheet and method of producing the same69US 4,476,186 AToray Industries, Inc. · 1984
- Acrylate copolymeric fibers56US 6,083,856 A3M Innovative Properties Company · 2000
- Nonwoven fabric laminate with good conformability53US 6,103,647 AKimberly-Clark Worldwide, Inc. · 2000