C09K 19/44
Containing compounds with benzene rings directly linked
Official title: containing compounds with benzene rings directly linked
C09K19/44 (Containing compounds with benzene rings directly linked) appears on 475 US grants and 429 published applications in this corpus.
Search patents in C09K- Granted patents
- 475
- Published applications
- 429
- Assignees
- 102
- Inventors
- 721
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 19 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 17 | 0 |
| 2002 | 6 | 21 |
| 2003 | 15 | 15 |
| 2004 | 15 | 10 |
| 2005 | 8 | 4 |
| 2006 | 8 | 8 |
| 2007 | 5 | 11 |
| 2008 | 10 | 20 |
| 2009 | 13 | 19 |
| 2010 | 24 | 23 |
| 2011 | 13 | 24 |
| 2012 | 17 | 19 |
| 2013 | 21 | 29 |
| 2014 | 16 | 26 |
| 2015 | 20 | 46 |
| 2016 | 35 | 42 |
| 2017 | 25 | 26 |
| 2018 | 23 | 21 |
| 2019 | 22 | 17 |
| 2020 | 15 | 17 |
| 2021 | 21 | 11 |
| 2022 | 7 | 5 |
| 2023 | 5 | 1 |
| 2024 | 3 | 2 |
| 2025 | 2 | 6 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid crystal display panel and liquid crystal display device3 Mar 2026US 12,566,351 B2Beijing Boe Display Technology Co., Ltd.
- Liquid-crystal display26 Aug 2025US 12,398,325 B2Merck Patent GmbH
- Liquid crystal composition, element and liquid crystal lens or a birefringent lens for stereoscopic image display18 Mar 2025US 12,252,643 B2Jnc Corporation
- Polymer-stabilized liquid crystal composition and use thereof2 Jul 2024US 12,024,665 B2Beijing Bayi Space Lcd Technology Co., Ltd
- Liquid crystal mixture and light modulating device19 Mar 2024US 11,932,799 B2Smart Liquid Crystal Technologies Co., Ltd.
- Liquid crystal composition and light modulating device thereof13 Aug 2026US 2026/0234471 A1TD Electrooptic Films (TDEF) Inc.
- Radio wave control element30 Jul 2026US 2026/0218051 A1FUJIFILM Corporation
- Liquid crystal composition and liquid crystal display device16 Jul 2026US 2026/0201250 A1Jiangsu Hecheng Display Technology Co., Ltd.
- Self alignment agent and liquid crystal composition thereof23 Apr 2026US 2026/0109900 A1Jiangsu Hecheng Display Technology Co., Ltd.
- Liquid crystal composition and liquid crystal display device1 Jan 2026US 2026/0002076 A1Jiangsu Hecheng Display Technology Co., Ltd.
Most cited
By later US patents
- Liquid crystal composition and liquid crystal display device182US 8,361,569 B2Jnc Corporation · 2013
- Liquid-crystalline medium71US 6,861,107 B2Merck Patent GmbH · 2005
- Liquid crystal compounds50US 4,261,651 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1981
- Optically active liquid crystal mixtures and liquid crystal devices containing them45US 4,149,413 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Norther Ireland · 1979
- Liquid crystalline, partially hydrogenated oligo-1,4-phenylenes and dielectrics and electro-optical display elements containing them43US 4,331,552 AMerck Patent GmbH · 1982