C09B 1/22
Dyes with unsubstituted amino groups
C09B1/22 (Dyes with unsubstituted amino groups) appears on 50 US grants and 9 published applications in this corpus.
Search patents in C09B- Granted patents
- 50
- Published applications
- 9
- Assignees
- 25
- Inventors
- 117
- Latest grant
- 20 Aug 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 3 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Polymerizable dichroic dyes20 Aug 2019US 10,385,215 B2Rolic AG
- Ink set and thermal transfer recording sheet11 Jul 2017US 9,701,146 B2Canon Kabushiki Kaisha
- Disperse dye composition and dyeing method for hydrophobic fiber material using same13 Oct 2015US 9,156,988 B2Nippon Kayaku Kabushiki Kaisha
- Radiation-sensitive colored composition, colored cured film, color filter and method of producing the same, solid-state imaging device, liquid crystal display apparatus, and method of producing dye9 Jun 2015US 9,052,458 B2FUJIFILM Corporation
- Polycarboxylic acid dye with low polymerization degree26 May 2015US 9,040,634 B2Dalian University of Technology
- Electrolytic Solution, Electrolytic Aqueous Solution, and Power Generating Device5 Dec 2019US 2019/0372145 A1Kyushu University, National University Corporation
- Polymerizable dichroic dyes2 Mar 2017US 2017/0058126 A1Rolic AG
- Ink set and thermal transfer recording sheet20 Oct 2016US 2016/0303882 A1Canon Kabushiki Kaisha
- Disperse Dye Composition And Dyeing Method For Hydrophobic Fiber Material Using Same27 Mar 2014US 2014/0082860 A1Nippon Kayaku Kabushiki Kaisha
- Polycarboxylic acid dye with low polymerization degree31 Oct 2013US 2013/0289218 A1Dalian University of Technology
Most cited
By later US patents
- Liquid crystal compositions including pleochroic dye33US 4,232,950 AMinnesota Mining and Manufacturing Company · 1980
- Liquid crystal compositions containing pleochroic dye24US 4,232,949 AMinnesota Mining and Manufacturing Company · 1980
- Disperse dyes which are convertible into a thermomigration fast form15US 5,116,958 ACiba-Geigy Corporation · 1992
- Guest-host type liquid crystal composition and liquid crystal display device using the same10US 4,495,083 AHitachi, Ltd. · 1985
- Polarizing film: polymer film base containing substituted anthraquinone dichroic dye10US 4,840,640 AMitsubishi Chemical Industries Limited · 1989