C09B 29/30
Amino naphtholsulfonic acid
C09B29/30 (Amino naphtholsulfonic acid) appears on 84 US grants and 30 published applications in this corpus.
Search patents in C09B- Granted patents
- 84
- Published applications
- 30
- Assignees
- 49
- Inventors
- 171
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 3 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 3 |
| 2009 | 2 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 2 | 0 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials21 Oct 2025US 12,448,519 B2Archroma (Switzerland) GmbH
- Chemical conjugates of Evans Blue derivatives and their use as radiotherapy and imaging agents for targeting prostate cancer10 Dec 2024US 12,161,733 B2The United States of America, as represented by the Secretary, Department of Health and Human Services
- Kit for diagnosing infection with Methicillin-resistant Staphylococcus aureus (MRSA) by detecting magnesium ions6 Dec 2022US 11,519,017 B2
- Chemical conjugates of Evans Blue derivatives and their use in the production of long-acting therapeutics14 Jul 2020US 10,709,790 B2The United States of America, as represented by the Secretary, Department of Health and Human Services
- Chemical conjugates of evans blue derivatives and their use as radiotherapy and imaging agents30 Jun 2020US 10,696,631 B2The United States of America, as represented by the Secretary, Department of Health and Human Services
- Mixture Of Reactive Dyes And Their Use For The Dyeing Or Printing Of Textile Fibre Materials1 Jun 2023US 2023/0167304 A1Archroma (Switzerland) GmbH
- Kit for diagnosing infection with methicillin-resistant staphylococcus aureus (mrsa) by detecting magnesium ions18 Nov 2021US 2021/0355521 A1Bioacts Corporation
- Chemical conjugates of evans blue derivatives and their use as radiotherapy and imaging agents for targeting prostate cancer14 Jan 2021US 2021/0008232 A1The United States of America, as represented by the Secretary, Department of Health and Human Servic
- Chemical conjugates of evans blue derivatives and their use in the production of long-acting therapeutics4 Jul 2019US 2019/0201537 A1The United States of America, as Represented by th e Secretary,Department of Health and Human Servic
- Chemical conjugates of evans blue derivatives and their use as radiotherapy and imaging agents21 Mar 2019US 2019/0084931 A1The United States of America, as represented by the Secretary, Department of Health and Human Services
Most cited
By later US patents
- Aqueous ink composition for ink-jet recording75US 4,631,085 ARicoh Company, Ltd. · 1986
- Ink-jet color printing system51US 4,446,470 AFuji Photo Film Co., Ltd. · 1984
- Water-soluble triazine black dyes free from cellulose reactive groups and suitable for use in inks40US 4,703,113 AImperial Chemical Industries PLC · 1987
- Recording liquid40US 5,135,571 ACanon Kabushiki Kaisha · 1992
- Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus34US 7,618,484 B2Canon Kabushiki Kaisha · 2009