C09K 19/3463
Pyrimidine with a carbon chain containing at least one asymmetric carbon atom
Official title: {Pyrimidine with a carbon chain containing at least one asymmetric carbon atom, i.e. optically active pyrimidines}
C09K19/3463 (Pyrimidine with a carbon chain containing at least one asymmetric carbon atom) appears on 164 US grants and 8 published applications in this corpus.
Search patents in C09K- Granted patents
- 164
- Published applications
- 8
- Assignees
- 49
- Inventors
- 279
- Latest grant
- 20 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 16 | 0 |
| 1990 | 15 | 0 |
| 1991 | 15 | 0 |
| 1992 | 13 | 0 |
| 1993 | 18 | 0 |
| 1994 | 17 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Liquid crystal composition and liquid crystal display device20 Aug 2019US 10,385,272 B2Jnc Corporation
- Liquid-crystal optical modulation element26 Sep 2017US 9,771,517 B2DIC Corporation
- Chiral compounds, cholesteric and ferroelectric liquid crystal compositions comprising these chiral compounds, and liquid crystal displays comprising these liquid crystal compositions11 Nov 2014US 8,883,037 B2Tetragon LC Chemie AG
- Chiral binaphthyl compounds11 Sep 2012US 8,263,799 B2Industrial Technology Research Institute
- Partially fluorinated liquid crystal material1 Aug 2006US 7,083,832 B2Displaytech, Inc.
- Liquid crystal composition and liquid crystal display device2 Nov 2017US 2017/0313940 A1Jnc Corporation
- Liquid-crystal optical modulation element21 Jan 2016US 2016/0017226 A1DIC Corporation
- Ferroelectric liquid crystal composition and ferroelectric liquid crystal display device6 Nov 2014US 2014/0327862 A1DIC Corporation
- Chiral compounds, cholesteric and ferroelectric liquid crystal compositions comprising these chiral compounds, and liquid crystal displays comprising these liquid crystal compositions5 Sep 2013US 2013/0228720 A1Tetragon LC Chemie AG
- Naproxen-based chiral compounds and liquid crystal display applications4 Jul 2013US 2013/0172558 A1
Most cited
By later US patents
- Liquid crystal compound70US 4,725,688 ASeiko Instruments Inc. · 1988
- Polymerizable, chiral compounds and their use70US 5,780,629 ABASF SE · 1998
- Fluorine-containing chiral smectic liquid crystals65US 4,886,619 AMinnesota Mining and Manufacturing Company · 1989
- Alkylbyphenyloxyacetic acid esters and their use in smectic liquid crystal materials55US 4,911,863 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1990
- Liquid crystal phase50US 4,744,918 AMerck Patent GmbH · 1988