C09K 19/3838
Polyesters
Official title: {Polyesters; Polyester derivatives}
C09K19/3838 (Polyesters) appears on 53 US grants and 60 published applications in this corpus.
Search patents in C09K- Granted patents
- 53
- Published applications
- 60
- Assignees
- 43
- Inventors
- 168
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 3 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 3 |
| 2016 | 1 | 6 |
| 2017 | 0 | 3 |
| 2018 | 5 | 6 |
| 2019 | 2 | 2 |
| 2020 | 6 | 7 |
| 2021 | 3 | 2 |
| 2022 | 4 | 3 |
| 2023 | 2 | 5 |
| 2024 | 1 | 5 |
| 2025 | 3 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid crystal polyester resin composition, molded article, and electronic component comprising the same26 May 2026US 12,637,619 B2SE Yang Polymer Co., Ltd.
- Porous body and method for manufacturing porous body17 Feb 2026US 12,552,990 B2Murata Manufacturing Co., Ltd.
- Decorative film, decorative molded article, decorative panel, and electronic device6 Jan 2026US 12,516,246 B2FUJIFILM Corporation
- Solid polymer composition, a self-supporting film and a light emitting device21 Oct 2025US 12,448,565 B2Avantama AG
- Light control sheet, light control device, photosensitive composition, and method for producing light control sheet23 Sep 2025US 12,422,715 B2Toppan Inc.
- Compound, polymerizable composition, cured product, optical film, polarizing plate, and image display device20 Aug 2026US 2026/0243940 A1FUJIFILM Corporation
- Liquid crystal polyester resin composition, molded article, and electronic component comprising the same22 May 2025US 2025/0163326 A1SE Yang Polymer Co., Ltd.
- Liquid Crystalline Polymer Composition10 Apr 2025US 2025/0115810 A1Ticona LLC
- Polymer Composition for Use in an Electronic Device10 Oct 2024US 2024/0336846 A1Ticona LLC
- Porous body and method for manufacturing porous body6 Jun 2024US 2024/0182784 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Optical fibre cable utilizing thermotropic liquid crystal polymer and method of making same42US 4,778,244 AImperial Chemical Industries PLC · 1988
- Liquid-crystalline polymer38US 4,818,807 AIdemitsu Kosan Co., Ltd. · 1989
- Liquid crystal polyester resin composition having excellent surface characteristics30US 4,888,127 APolyplastics Co., Ltd. · 1989
- Liquid crystalline polymer composition and molded article made of the same29US 7,892,450 B2Ueno Fine Chemicals Industry, Ltd. · 2011
- Optical fibre cable utilizing thermotropic liquid crystal polymer and method of making same22US 4,906,066 AImperial Chemical Industries PLC · 1990