C09K 19/2028
Containing additionally a linking group other than -coo- or -oco-
Official title: {containing additionally a linking group other than -COO- or -OCO-, e.g. -CH2-CH2-, -CH=CH-, -C=C-; containing at least one additional carbon atom in the chain containing -COO- or -OCO- groups, e.g. -COO-CH*-CH3}
C09K19/2028 (Containing additionally a linking group other than -coo- or -oco-) appears on 81 US grants and 56 published applications in this corpus.
Search patents in C09K- Granted patents
- 81
- Published applications
- 56
- Assignees
- 44
- Inventors
- 269
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 4 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 6 |
| 2017 | 3 | 4 |
| 2018 | 3 | 6 |
| 2019 | 3 | 3 |
| 2020 | 2 | 5 |
| 2021 | 3 | 4 |
| 2022 | 4 | 5 |
| 2023 | 5 | 3 |
| 2024 | 5 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid crystal composition for light-scattering liquid crystal device, light-scattering liquid crystal device, and smart window14 Jan 2025US 12,197,062 B2DIC Corporation
- Reactive mesogens10 Dec 2024US 12,162,834 B2Merck Patent GmbH
- Optically anisotropic layer, method of manufacturing the same, laminate, method of manufacturing the same, polarizing plate, liquid crystal display device, and organic EL display device3 Sep 2024US 12,078,832 B2FUJIFILM Corporation
- Polymerisable LC medium and polymer film with flat optical dispersion9 Jul 2024US 12,031,079 B2Merck Patent GmbH
- Liquid crystal composition, liquid crystal display element and compound4 Jun 2024US 11,999,892 B2DIC Corporation
- Liquid crystal composition, light absorption anisotropic film, laminate, image display device, and polymer2 Jul 2026US 2026/0184994 A1FUJIFILM Corporation
- Liquid crystal composition and display panel30 Apr 2026US 2026/0117125 A1Tcl China Star Optoelectronics Technology Co., Ltd.
- Laminate, optical element, and light guide element17 Oct 2024US 2024/0345301 A1FUJIFILM Corporation
- Ultra-high-polarity chiral liquid crystal material, liquid crystal laser and preparation method therefor18 Jan 2024US 2024/0019746 A1South China University of Technology
- Optically anisotropic layer, method of manufacturing the same, laminate, method of manufacturing the same, polarizing plate, liquid crystal display device, and organic el display device5 Oct 2023US 2023/0314680 A1FUJIFILM Corporation
Most cited
By later US patents
- Polymerizable, chiral compounds and their use70US 5,780,629 ABASF SE · 1998
- Liquid crystalline material59US 5,560,864 AMerck Patent Gesellschaft Mit Beshrankter Haftung · 1996
- Alkylbyphenyloxyacetic acid esters and their use in smectic liquid crystal materials55US 4,911,863 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1990
- Liquid crystal phase50US 4,744,918 AMerck Patent GmbH · 1988
- Polymerizable, chiral compounds and their use37US 5,886,242 ABASF SE · 1999