C09K 2019/121
Compounds containing phenylene-1,4-diyl
Official title: {Compounds containing phenylene-1,4-diyl (-Ph-)}
C09K2019/121 (Compounds containing phenylene-1,4-diyl) appears on 940 US grants and 1,231 published applications in this corpus.
Search patents in C09K- Granted patents
- 940
- Published applications
- 1,231
- Assignees
- 181
- Inventors
- 1,350
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 5 |
| 2004 | 4 | 7 |
| 2005 | 4 | 6 |
| 2006 | 5 | 7 |
| 2007 | 6 | 13 |
| 2008 | 12 | 28 |
| 2009 | 16 | 29 |
| 2010 | 36 | 28 |
| 2011 | 18 | 29 |
| 2012 | 19 | 22 |
| 2013 | 26 | 51 |
| 2014 | 24 | 70 |
| 2015 | 63 | 119 |
| 2016 | 76 | 136 |
| 2017 | 77 | 114 |
| 2018 | 76 | 132 |
| 2019 | 86 | 104 |
| 2020 | 75 | 71 |
| 2021 | 65 | 60 |
| 2022 | 61 | 41 |
| 2023 | 36 | 60 |
| 2024 | 40 | 27 |
| 2025 | 34 | 40 |
| 2026 | 30 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid crystal composition and display panel29 Sep 2026US 12,747,393 B2Tcl China Star Optoelectronics Technology Co., Ltd.
- 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 crystal device14 Jul 2026US 12,680,024 B2Merck Patent GmbH
- Liquid-crystal media and PNLC light modulation element23 Jun 2026US 12,662,632 B2Merck Patent GmbH
- Liquid crystal composition and use thereof17 Sep 2026US 2026/0275193 A1Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.
- Composite10 Sep 2026US 2026/0265608 A1University of Leeds
- Light control sheet and vehicle window27 Aug 2026US 2026/0250576 A1Toppan Holdings Inc.
- Liquid crystalline medium and compounds20 Aug 2026US 2026/0242665 A1Merck Patent GmbH
- Polymerizable liquid crystal formulations20 Aug 2026US 2026/0242666 A1Merck Patent GmbH
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 crystalline polyester composition46US 7,824,572 B2Sumitomo Chemical Company, Limited · 2010
- Components for high-frequency technology41US 7,361,288 B2Merck Patent Gesellschaft Mit Besschrankter haftung · 2008
- Liquid-crystal medium37US 7,731,865 B2Merck Patent GmbH · 2010