C09K 19/54
Additives having no specific mesophase characterised by their chemical composition
Official title: Additives having no specific mesophase {characterised by their chemical composition}
C09K19/54 (Additives having no specific mesophase characterised by their chemical composition) appears on 1,865 US grants and 1,989 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,865
- Published applications
- 1,989
- Assignees
- 510
- Inventors
- 3,085
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 18 | 0 |
| 1990 | 14 | 0 |
| 1991 | 15 | 0 |
| 1992 | 20 | 0 |
| 1993 | 28 | 0 |
| 1994 | 27 | 0 |
| 1995 | 28 | 0 |
| 1996 | 31 | 0 |
| 1997 | 30 | 0 |
| 1998 | 26 | 0 |
| 1999 | 19 | 0 |
| 2000 | 25 | 0 |
| 2001 | 25 | 6 |
| 2002 | 18 | 23 |
| 2003 | 20 | 30 |
| 2004 | 32 | 40 |
| 2005 | 21 | 33 |
| 2006 | 27 | 43 |
| 2007 | 18 | 33 |
| 2008 | 20 | 36 |
| 2009 | 34 | 44 |
| 2010 | 44 | 56 |
| 2011 | 34 | 66 |
| 2012 | 44 | 66 |
| 2013 | 56 | 84 |
| 2014 | 57 | 117 |
| 2015 | 92 | 157 |
| 2016 | 110 | 194 |
| 2017 | 111 | 146 |
| 2018 | 120 | 168 |
| 2019 | 119 | 179 |
| 2020 | 131 | 124 |
| 2021 | 104 | 90 |
| 2022 | 94 | 66 |
| 2023 | 55 | 73 |
| 2024 | 51 | 39 |
| 2025 | 53 | 46 |
| 2026 | 29 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid crystal composition and display panel29 Sep 2026US 12,747,393 B2Tcl China Star Optoelectronics Technology Co., Ltd.
- Liquid-crystal medium15 Sep 2026US 12,735,641 B2Merck Patent GmbH
- Optical laminate, polarizing plate, and image device display15 Sep 2026US 12,736,729 B2FUJIFILM Corporation
- 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 medium28 Jul 2026US 12,692,441 B2Merck Patent GmbH
- Polymerizable liquid crystal composition8 Oct 2026US 2026/0308453 A1Rolic Technologies AG
- Polymer dispersed liquid crystal film and method of producing the same1 Oct 2026US 2026/0299348 A1Nitto Denko Corporation
- Liquid crystal composition, light absorption anisotropic film, laminate, and image display device24 Sep 2026US 2026/0286224 A1FUJIFILM Corporation
- Innovative photomobile polymer, method for preparing said photomobile polymer without rubbing, and handling device for a photovoltaic panel24 Sep 2026US 2026/0293363 A1Consiglio Nazionale Delle Ricerche
- Light control sheet and vehicle window27 Aug 2026US 2026/0250576 A1Toppan Holdings Inc.
Most cited
By later US patents
- Light modulating material comprising a liquid crystal dispersion in a plastic matrix449US 4,688,900 AKent State University · 1987
- Encapsulated liquid crystal and method389US 4,435,047 AManchester R & D Partnership · 1984
- Liquid crystalline-plastic material having submillisecond switch times and extended memory276US 4,671,618 A1987
- Liquid crystalline light modulating device and material273US 5,437,811 AKent State University · 1995
- Process of aligning and realigning liquid crystal media259US 4,974,941 AHercules Incorporated · 1990