C09K 19/38
Polymers
C09K19/38 (Polymers) appears on 1,492 US grants and 1,291 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,492
- Published applications
- 1,291
- Assignees
- 435
- Inventors
- 2,692
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 15 | 0 |
| 1987 | 14 | 0 |
| 1988 | 29 | 0 |
| 1989 | 37 | 0 |
| 1990 | 37 | 0 |
| 1991 | 44 | 0 |
| 1992 | 35 | 0 |
| 1993 | 59 | 0 |
| 1994 | 38 | 0 |
| 1995 | 36 | 0 |
| 1996 | 30 | 0 |
| 1997 | 33 | 0 |
| 1998 | 37 | 0 |
| 1999 | 17 | 0 |
| 2000 | 34 | 0 |
| 2001 | 25 | 2 |
| 2002 | 17 | 30 |
| 2003 | 27 | 38 |
| 2004 | 37 | 40 |
| 2005 | 17 | 42 |
| 2006 | 38 | 43 |
| 2007 | 21 | 45 |
| 2008 | 28 | 30 |
| 2009 | 35 | 41 |
| 2010 | 40 | 40 |
| 2011 | 38 | 35 |
| 2012 | 23 | 52 |
| 2013 | 33 | 52 |
| 2014 | 37 | 58 |
| 2015 | 46 | 58 |
| 2016 | 33 | 53 |
| 2017 | 38 | 66 |
| 2018 | 41 | 80 |
| 2019 | 53 | 66 |
| 2020 | 50 | 89 |
| 2021 | 54 | 65 |
| 2022 | 51 | 69 |
| 2023 | 63 | 71 |
| 2024 | 59 | 55 |
| 2025 | 47 | 44 |
| 2026 | 30 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polymerizable liquid crystal material and polymerized liquid crystal film8 Sep 2026US 12,729,341 B2Merck Patent GmbH
- Three-dimensional helical-artificial-fibrous-muscle structured tubular soft actuator, manufacturing method therefor and application thereof1 Sep 2026US 12,723,197 B2Westlake University
- 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
- Optical film, optical laminate, and image display device30 Jun 2026US 12,668,744 B2FUJIFILM Corporation
- Resin composition, film, metal-clad laminate, and circuit board8 Oct 2026US 2026/0308452 A1Kuraray Co., Ltd.
- Liquid crystal composition and liquid crystal display device thereof17 Sep 2026US 2026/0275194 A1Jiangsu Hecheng Display Technology Co., Ltd.
- Liquid crystal elastomers via thiol-ene photopolymerization17 Sep 2026US 2026/0275196 A1The Regents of the University of Colorado, a body corporate
- Robotic liquid crystal elastomers, apparatus, and method of manufacture10 Sep 2026US 2026/0265607 A1Massachusetts Institute of Technology
- Liquid crystal polyester, film, and metal-clad laminate20 Aug 2026US 2026/0242664 A1Kaneka Corporation
Most cited
By later US patents
- Process for producing anisotropic liquid crystal layers on a substrate244US 5,247,377 ARohm GmbH Chemische Fabrik · 1993
- Light modulating materials comprising a liquid crystal phase dispersed in a birefringent polymeric phase231US 4,994,204 AKent State University · 1991
- Liquid crystalline material and display cell containing said material204US 5,188,760 AU. S. Philips Corporation · 1993
- Solidified liquid crystals of cellulose with optically variable properties178US 5,629,055 APulp and Paper Research Institute of Canada · 1997
- Switchable cholesteric filter and luminaire having such a filter164US 5,762,823 AU. S. Philips Corporation · 1998