C09K 19/584
Having a condensed ring system
Official title: {having a condensed ring system; macrocyclic compounds}
C09K19/584 (Having a condensed ring system) appears on 18 US grants and 8 published applications in this corpus.
Search patents in C09K- Granted patents
- 18
- Published applications
- 8
- Assignees
- 18
- Inventors
- 60
- Latest grant
- 13 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrically tunable reflection color of chiral ferroelectric nematic liquid crystals13 Aug 2024US 12,060,515 B2Kent State University
- Use of zwitterion dopant in preparation of dynamic-scattering-mode-based liquid crystal material22 Nov 2022US 11,505,745 B2Academy of Shenzhen Guohua Optoelectronics
- Liquid crystal photoalignment materials7 Jul 2020US 10,707,426 B2Lomox Limited
- Liquid crystal photoalignment materials29 Nov 2016US 9,508,942 B2Lomox Limited
- Aligned liquid crystal layer containing azolium salts and process for increasing the tilt29 Aug 2006US 7,097,888 B2Eastman Kodak Company
- Electrically Tunable Reflection Color Of Chiral Ferroelectric Nematic Liquid Crystals4 Apr 2024US 2024/0110100 A1Kent State University
- Use of zwitterion dopant in preparation of dynamic-scattering-mode-based liquid crystal material18 Nov 2021US 2021/0355384 A1Academy of Shenzhen Guohua Optoelectronics
- Wide temperature range and high photochemical stability smectic liquid crystal compositions with a monolayer smectic a phase (sma1), method of obtaining thereof and devices utilizing thereof17 Jun 2021US 2021/0179940 A1Wojskowa Akademia Techniczna
- Liquid Crystal Photoalignment Materials23 Mar 2017US 2017/0084846 A1Lomox Limited
- Materials27 Jan 2011US 2011/0020566 A1Lomox Limited
Most cited
By later US patents
- Process for producing ferroelectric liquid-crystal cells with oleophilic additive employing heat and low pressure overlapped a short time22US 5,430,564 AHoechst Aktiengesellschaft · 1995
- Fluorinated aromatic compounds and the use of the same in liquid crystal mixtures18US 7,018,685 B2Merck Patent GmbH · 2006
- Squarilium compound and liquid crystal composition containing the same14US 5,037,575 AMitsubishi Chemical Industries Limited · 1991
- Conducting liquid crystals10US 5,370,820 ABritish Technology Group Limited · 1994
- Optically active naphthalene derivatives9US 5,072,021 AMitsui Toatsu Chemicals, Inc. · 1991