C09K 19/3068
Chain containing -coo- or -oco- groups
Official title: {chain containing -COO- or -OCO- groups}
C09K19/3068 (Chain containing -coo- or -oco- groups) appears on 723 US grants and 638 published applications in this corpus.
Search patents in C09K- Granted patents
- 723
- Published applications
- 638
- Assignees
- 145
- Inventors
- 1,124
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 16 | 0 |
| 1988 | 8 | 0 |
| 1989 | 14 | 0 |
| 1990 | 9 | 0 |
| 1991 | 15 | 0 |
| 1992 | 13 | 0 |
| 1993 | 17 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 0 |
| 2002 | 13 | 11 |
| 2003 | 12 | 17 |
| 2004 | 18 | 12 |
| 2005 | 8 | 12 |
| 2006 | 10 | 11 |
| 2007 | 10 | 12 |
| 2008 | 7 | 13 |
| 2009 | 7 | 15 |
| 2010 | 15 | 23 |
| 2011 | 19 | 29 |
| 2012 | 14 | 15 |
| 2013 | 26 | 24 |
| 2014 | 13 | 28 |
| 2015 | 30 | 59 |
| 2016 | 37 | 66 |
| 2017 | 37 | 69 |
| 2018 | 42 | 64 |
| 2019 | 52 | 37 |
| 2020 | 42 | 38 |
| 2021 | 27 | 19 |
| 2022 | 21 | 21 |
| 2023 | 18 | 18 |
| 2024 | 14 | 10 |
| 2025 | 10 | 6 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09K 2019/3077Cy-cy-coo-phIndexing code139
- C09K 2019/3078Cy-cy-coo-ph-cyIndexing code133
- C09K 2019/3083Cy-ph-coo-phIndexing code115
- C09K 2019/3071Cy-cy-coo-cyIndexing code103
- C09K 2019/3075Cy-coo-phIndexing code79
- C09K 2019/308Cy-cy-coo-ph-phIndexing code30
- C09K 2019/3069Cy-coo-cyIndexing code8
- C09K 2019/3074Cy-cy-coo-cy-cy, or more cy ringsIndexing code5
Recent patents
- Liquid-crystalline medium and liquid-crystal display comprising the same and compounds12 May 2026US 12,624,291 B2Merck Patent GmbH
- Cholesteric liquid crystal film and manufacturing method thereof12 May 2026US 12,624,292 B2FUJIFILM Corporation
- Liquid crystal medium5 May 2026US 12,618,008 B2Merck Patent GmbH
- Device for the regulation of light transmission5 May 2026US 12,619,110 B2Merck Patent GmbH
- Optically anisotropic layer, optical film, polarizing plate, and image display device28 Apr 2026US 12,612,553 B2FUJIFILM Corporation
- Polymerizable liquid crystal formulations20 Aug 2026US 2026/0242666 A1Merck Patent GmbH
- Liquid-crystalline medium6 Aug 2026US 2026/0226350 A1Merck Patent GmbH
- Liquid crystal medium23 Jul 2026US 2026/0209603 A1Merck Patent GmbH
- Cured film, optical film, and image display device16 Jul 2026US 2026/0202596 A1FUJIFILM Corporation
- Liquid Crystal Medium25 Jun 2026US 2026/0176532 A1Merck Patent GmbH
Most cited
By later US patents
- Liquid crystalline cyclohexane derivatives95US 4,229,315 AMerck Patent GmbH · 1980
- Liquid crystalline compounds and mixtures thereof90US 4,596,667 AChisso Corporation · 1986
- Trifluorobenzene derivative and liquid crystal composition containing the same83US 5,032,313 AChisso Corporation · 1991
- Anisotropic compounds with negative or positive DC-anisotropy and low optical anisotropy70US 4,368,135 ABBC Brown, Boveri & Company, Limited · 1983
- Polymerizable, chiral compounds and their use70US 5,780,629 ABASF SE · 1998