C09B 67/0023
Of phthalocyanines
Official title: {of phthalocyanines}
C09B67/0023 (Of phthalocyanines) appears on 53 US grants and 27 published applications in this corpus.
Search patents in C09B- Granted patents
- 53
- Published applications
- 27
- Assignees
- 31
- Inventors
- 140
- Latest grant
- 13 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 4 |
| 2014 | 0 | 3 |
| 2015 | 3 | 1 |
| 2016 | 3 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 0 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Chlorinated copper phthalocyanine pigments13 Jul 2021US 11,059,978 B2Sun Chemical Corporation
- Self-assembled nano-structured particle and methods for preparing27 Apr 2021US 10,988,618 B2
- Method for producing organic pigment microparticles7 Apr 2020US 10,611,915 B2M. Technique Co., Ltd.
- Chlorinated copper phthalocyanine pigments28 Jan 2020US 10,544,307 B2Sun Chemical Corporation
- Self-assembled nano-structure particle and method for preparing15 Oct 2019US 10,442,932 B2Dystar Hilton Davis Corp.
- Chlorinated copper phthalocyanine pigments9 Apr 2020US 2020/0109291 A1Sun Chemical Corporation
- Self-assembled nano-structured particle and methods for preparing6 Feb 2020US 2020/0040191 A1Dystar Hilton Davis Corp.
- Method for producing organic pigment microparticles16 Aug 2018US 2018/0230310 A1M. Technique Co., Ltd.
- Chlorinated copper phthalocyanine pigments2 Aug 2018US 2018/0215921 A1Sun Chemical Corporation
- Phthalocyanine synthesis10 May 2018US 2018/0127585 A1Sun Chemical Corporation
Most cited
By later US patents
- Process for the preparation of pigment dispersion, pigment dispersion obtained by the same, ink jet recording ink comprising the same, and recording method and recorded material using the same52US 6,916,862 B2Seiko Epson Corporation · 2005
- Electrophotographic photosensitive member, method of producing phthalocyanine crystal, method of producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine crystal30US 8,974,991 B2Canon Kabushiki Kaisha · 2015
- Phthalocyanine compounds, process for production thereof and electrophotographic photosensitive member using the compounds21US 6,245,472 B1Canon Kabushiki Kaisha · 2001
- Continuous method of producing phthalocyanine pigment dispersions in organic solvent20US 4,522,654 AInmont Corporation · 1985
- Two-step milling process for preparing pigmentary copper phthalocyanine18US 4,257,951 AE. I. Du Pont de Nemours and Company · 1981