C09K 2019/2035
Ph-coo-ph
Official title: {Ph-COO-Ph}
C09K2019/2035 (Ph-coo-ph) appears on 134 US grants and 155 published applications in this corpus.
Search patents in C09K- Granted patents
- 134
- Published applications
- 155
- Assignees
- 80
- Inventors
- 426
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 9 |
| 2014 | 2 | 6 |
| 2015 | 6 | 19 |
| 2016 | 7 | 17 |
| 2017 | 18 | 11 |
| 2018 | 9 | 14 |
| 2019 | 9 | 15 |
| 2020 | 4 | 12 |
| 2021 | 10 | 7 |
| 2022 | 9 | 5 |
| 2023 | 7 | 6 |
| 2024 | 8 | 7 |
| 2025 | 5 | 6 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Twist-bend nematic liquid crystal (LC) dimer-based material and use thereof, and LC-based cholesteric heliconical (CH) material and use thereof21 Jul 2026US 12,686,821 B2East China University of Science and Technology
- Liquid crystalline medium and electro-optical device16 Jun 2026US 12,655,350 B2Merck Patent GmbH
- Ferroelectric nematic liquid crystalline medium7 Apr 2026US 12,595,414 B2Merck Patent GmbH
- Liquid crystal compounds27 Jan 2026US 12,534,670 B2Rolic Technologies AG
- Low dielectric, high heat-dissipation liquid crystal polymer composition for millimeter wave band, and method for producing same13 Jan 2026US 12,522,767 B2Industrial Cooperation Foundation Jeonbuk National University
- Polymerizable liquid crystal formulations20 Aug 2026US 2026/0242666 A1Merck Patent GmbH
- Liquid-crystalline medium6 Aug 2026US 2026/0226350 A1Merck Patent GmbH
- Liquid crystal composition and liquid crystal display device16 Jul 2026US 2026/0201250 A1Jiangsu Hecheng Display Technology Co., Ltd.
- Liquid crystal composition and display panel30 Apr 2026US 2026/0117125 A1Tcl China Star Optoelectronics Technology Co., Ltd.
- Composition, optically anisotropic layer, cured film, and diffraction element30 Apr 2026US 2026/0117126 A1FUJIFILM Corporation
Most cited
By later US patents
- Liquid crystal materials36US 4,257,911 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1981
- P-cyanophenyl 4-alkyl-4'-biphenylcarboxylate, method for preparing same and liquid crystal compositions using same31US 4,017,416 AChisso Corporation · 1977
- Nematic compounds and mixtures25US 4,002,670 AMerck Patent GmbH · 1977
- Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoxyalkyloxiranemethanol chiral tails25US 4,638,073 A1987
- Novel compositions, devices and method23US 4,140,016 ABecton, Dickinson and Company · 1979