C09B 19/02
Bisoxazines prepared from aminoquinones
C09B19/02 (Bisoxazines prepared from aminoquinones) appears on 116 US grants and 30 published applications in this corpus.
Search patents in C09B- Granted patents
- 116
- Published applications
- 30
- Assignees
- 47
- Inventors
- 170
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 3 |
| 2002 | 8 | 3 |
| 2003 | 4 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 4 |
| 2009 | 1 | 2 |
| 2010 | 2 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 5 |
| 2017 | 4 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Radiation-curable compositions of pigment violet 23 with improved removability from surfaces, method of making a radiation-curable composition and ink containing a radiation-curable composition10 Sep 2024US 12,084,578 B2Heidelberger Druckmaschinen AG
- Medical methods utilising high purity diaminophenothiazinium compounds14 Sep 2021US 11,116,772 B2WisTa Laboratories Ltd.
- Medical methods utilising high purity diaminophenothiazinium compounds21 Jan 2020US 10,537,578 B2
- Heavy metal free, blue and navy fibre-reactive dye mixtures28 May 2019US 10,301,475 B2DryStar Colours Distribution GmbH
- Method for producing halogenated organic pigment, halogenated organic pigment obtained by the production method, and colored composition comprising the same18 Dec 2018US 10,155,867 B2Toyo Ink Sc Holdings Co., Ltd.
- Radiation-curable compositions of pigment violet 23 with improved removability from surfaces, method of making a radiation-curable composition and ink containing a radiation-curable composition4 Mar 2021US 2021/0062005 A1Heidelberger Druckmaschinen AG
- Medical methods utilising high purity diaminophenothiazinium compounds27 Aug 2020US 2020/0268767 A1WisTa Laboratories Ltd.
- Heavy metal free, blue and navy fibre- reactive dye mixtures16 Aug 2018US 2018/0230311 A1DyStar Colours Distribution GmbH
- Medical methods utilising high purity diaminophenothiazinium compounds22 Mar 2018US 2018/0078562 A1WisTa Laboratories Ltd.
- Methods of chemical synthesis and purification of diaminophenothiazinium compounds including methylthioninium chloride (MTC)27 Jul 2017US 2017/0209456 A1WisTa Laboratories Ltd.
Most cited
By later US patents
- Fluorescent carbamate-modified phthalocyanine pigments46US 5,811,543 ACiba Speciality Chemicals Corporation · 1998
- Pigment compositions41US 4,310,359 AToyo Ink Manufacturing Co., Ltd. · 1982
- Fluorescent quinacridone pigments31US 5,561,232 ACiba-Geigy Corporation · 1996
- Dyestuffs26US 3,996,221 AImperial Chemical Industries PLC · 1976
- Dye, ink containing the same, and ink-jet recording method and instrument using the ink26US 5,733,363 ACanon Kabushiki Kaisha · 1998