C09K 19/3809
Polyesters
Official title: {Polyesters; Polyester derivatives, e.g. polyamides}
C09K19/3809 (Polyesters) appears on 444 US grants and 423 published applications in this corpus.
Search patents in C09K- Granted patents
- 444
- Published applications
- 423
- Assignees
- 160
- Inventors
- 919
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 13 | 0 |
| 1989 | 10 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 16 | 0 |
| 1993 | 13 | 0 |
| 1994 | 12 | 0 |
| 1995 | 11 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 3 |
| 2003 | 0 | 3 |
| 2004 | 4 | 13 |
| 2005 | 6 | 9 |
| 2006 | 12 | 7 |
| 2007 | 5 | 8 |
| 2008 | 4 | 4 |
| 2009 | 5 | 15 |
| 2010 | 10 | 13 |
| 2011 | 13 | 17 |
| 2012 | 7 | 30 |
| 2013 | 16 | 41 |
| 2014 | 22 | 35 |
| 2015 | 28 | 23 |
| 2016 | 13 | 24 |
| 2017 | 16 | 18 |
| 2018 | 15 | 17 |
| 2019 | 16 | 11 |
| 2020 | 16 | 19 |
| 2021 | 9 | 16 |
| 2022 | 10 | 20 |
| 2023 | 17 | 30 |
| 2024 | 15 | 23 |
| 2025 | 22 | 17 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of manufacturing display device1 Sep 2026US 12,724,308 B2Japan Display Inc.
- Liquid crystal elastomer compositions and methods of making the same18 Aug 2026US 12,709,711 B2The Regents of the University of Colorado, a body corporate
- Liquid crystal polyester resin composition, molded article, and electronic component comprising the same26 May 2026US 12,637,619 B2SE Yang Polymer Co., Ltd.
- Liquid crystal polymer film, laminated body including the liquid crystal polymer film, and method of producing liquid crystal polymer film5 May 2026US 12,617,908 B2Murata Manufacturing Co., Ltd.
- Liquid crystal polymer composite, liquid crystal polymer composite film, and metal-clad laminate including same7 Apr 2026US 12,595,344 B2Textiles Coated Incorporated
- Resin composition, film, metal-clad laminate, and circuit board8 Oct 2026US 2026/0308452 A1Kuraray Co., Ltd.
- Liquid crystal polyester, film, and metal-clad laminate20 Aug 2026US 2026/0242664 A1Kaneka Corporation
- Liquid crystal polymer composite, liquid crystal polymer composite film, and metal-clad laminate including same25 Jun 2026US 2026/0176431 A1
- Bio-Dihydroxyphenols for Use in Forming Bio-Liquid Crystalline Polymers9 Apr 2026US 2026/0098124 A1Ticona LLC
- Methods for producing liquid crystal polymer filaments26 Mar 2026US 2026/0084358 A1Kuraray Co., Ltd.
Most cited
By later US patents
- Head-up display system where polarized light from a display impinges on a glass plate containing twisted nematic liquid crystal at the plate's Brewsters angle129US 5,510,913 ACentral Glass Company, Limited · 1996
- Process for extruding thermotropic liquid crystalline polymers90US 4,468,364 ACelanese Corporation · 1984
- Thermally conductive polymer molded article and method for producing the same77US 7,189,778 B2Polymatech Co., Ltd. · 2007
- Liquid crystal color display device provided with a color filter film and an optical phase plate comprising liquid crystal polymer72US 5,250,214 ANippon Oil Co., Ltd. · 1993
- Thermotropic liquid crystal polymer composition and insulator69US 5,490,319 AEbara Corporation · 1996