C09K 2019/122
Ph-ph
Official title: {Ph-Ph}
C09K2019/122 (Ph-ph) appears on 570 US grants and 815 published applications in this corpus.
Search patents in C09K- Granted patents
- 570
- Published applications
- 815
- Assignees
- 131
- Inventors
- 992
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 6 |
| 2012 | 2 | 4 |
| 2013 | 6 | 31 |
| 2014 | 15 | 49 |
| 2015 | 44 | 86 |
| 2016 | 50 | 96 |
| 2017 | 52 | 79 |
| 2018 | 47 | 102 |
| 2019 | 67 | 80 |
| 2020 | 54 | 61 |
| 2021 | 50 | 57 |
| 2022 | 52 | 31 |
| 2023 | 31 | 50 |
| 2024 | 29 | 22 |
| 2025 | 30 | 28 |
| 2026 | 21 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid crystal composition and display panel29 Sep 2026US 12,747,393 B2Tcl China Star Optoelectronics Technology Co., Ltd.
- 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 media and PNLC light modulation element23 Jun 2026US 12,662,632 B2Merck Patent GmbH
- Paraffinic compound addition to liquid crystals for reduced switching voltage on NCAP-based electro-optical modulator2 Jun 2026US 12,645,107 B2Orbotech Ltd.
- Liquid-crystalline medium12 May 2026US 12,624,289 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-crystalline medium71US 6,861,107 B2Merck Patent GmbH · 2005
- Smectic liquid crystal display cell29US 4,196,974 AThomson-CSF · 1980
- Liquid crystal display incorporating positive and negative smectic material21US 4,291,948 AInternational Standard Electric Corporation · 1981
- Optical recording medium21US 5,019,476 AOlympus Optical Co., Ltd. · 1991
- 1,2-naphthalocyanine near-infrared absorbent and recording/display materials using same20US 4,960,538 AMitsui Toatsu Chemicals, Inc. · 1990