C09K 19/2007
The chain containing -coo- or -oco- groups
Official title: {the chain containing -COO- or -OCO- groups}
C09K19/2007 (The chain containing -coo- or -oco- groups) appears on 1,095 US grants and 756 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,095
- Published applications
- 756
- Assignees
- 287
- Inventors
- 1,888
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 14 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 11 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 11 | 0 |
| 1986 | 16 | 0 |
| 1987 | 24 | 0 |
| 1988 | 16 | 0 |
| 1989 | 32 | 0 |
| 1990 | 29 | 0 |
| 1991 | 34 | 0 |
| 1992 | 41 | 0 |
| 1993 | 41 | 0 |
| 1994 | 31 | 0 |
| 1995 | 26 | 0 |
| 1996 | 16 | 0 |
| 1997 | 18 | 0 |
| 1998 | 25 | 0 |
| 1999 | 27 | 0 |
| 2000 | 18 | 0 |
| 2001 | 17 | 2 |
| 2002 | 18 | 20 |
| 2003 | 24 | 20 |
| 2004 | 24 | 21 |
| 2005 | 7 | 19 |
| 2006 | 22 | 27 |
| 2007 | 13 | 24 |
| 2008 | 15 | 23 |
| 2009 | 18 | 25 |
| 2010 | 26 | 39 |
| 2011 | 29 | 38 |
| 2012 | 16 | 28 |
| 2013 | 44 | 31 |
| 2014 | 17 | 37 |
| 2015 | 41 | 62 |
| 2016 | 36 | 51 |
| 2017 | 40 | 40 |
| 2018 | 33 | 47 |
| 2019 | 27 | 35 |
| 2020 | 25 | 44 |
| 2021 | 23 | 30 |
| 2022 | 29 | 21 |
| 2023 | 32 | 23 |
| 2024 | 20 | 18 |
| 2025 | 16 | 18 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09K 19/2021Compounds containing at least one asymmetric carbon atom363
- C09K 2019/2078Ph-coo-ph-coo-phIndexing code161
- C09K 19/2014Containing additionally a linking group other than -coo- or -oco-157
- C09K 2019/2035Ph-coo-phIndexing code134
- C09K 2019/2042Ph-ph-coo-phIndexing code54
- C09K 2019/2092Ph-c≡c-ph-coo-phIndexing code12
- C09K 2019/2064Ph-ph-coo-ph-phIndexing code6
- C09K 2019/205Ph-ph-ph-coo-phIndexing code4
Recent patents
- Polymerisable liquid crystal material and polymerised liquid crystal film21 Jul 2026US 12,686,820 B2Merck Patent GmbH
- 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
- Polymerizable liquid crystal material and polymerized liquid crystal film2 Jun 2026US 12,644,050 B2Merck Patent GmbH
- Mixture including ferroelectric nematic phase and methods of forming and using same12 May 2026US 12,624,288 B2The Regents of the University of Colorado, a body corporate
- 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.
- Reactive mesogens16 Jul 2026US 2026/0201251 A1Merck Patent GmbH
- Cured film, optical film, and image display device16 Jul 2026US 2026/0202596 A1FUJIFILM Corporation
Most cited
By later US patents
- Liquid crystal composition and liquid crystal display device182US 8,361,569 B2Jnc Corporation · 2013
- Process of preparing compositions having multiple oriented mesogens149US 5,073,294 AHercules Incorporated · 1991
- Smectic liquid crystals132US 4,613,209 AAT&T Bell Laboratories · 1986
- Ferroelectric liquid crystal compounds and liquid crystal compositions112US 4,576,732 AHitachi, Ltd. · 1986
- Alignment of ferroelectric LCDs110US 4,561,726 AAT&T Bell Laboratories · 1985