C09B 55/002
Monoazomethine dyes
Official title: {Monoazomethine dyes}
C09B55/002 (Monoazomethine dyes) appears on 106 US grants and 70 published applications in this corpus.
Search patents in C09B- Granted patents
- 106
- Published applications
- 70
- Assignees
- 51
- Inventors
- 277
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 3 |
| 2004 | 2 | 4 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 6 |
| 2009 | 5 | 1 |
| 2010 | 5 | 8 |
| 2011 | 2 | 6 |
| 2012 | 5 | 3 |
| 2013 | 5 | 3 |
| 2014 | 4 | 1 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 5 |
| 2019 | 3 | 4 |
| 2020 | 3 | 1 |
| 2021 | 3 | 1 |
| 2022 | 2 | 6 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Unsymmetrical squaraine dyes and applications thereof2 Jun 2026US 12,646,657 B2Council of Scientific and Industrial Research
- Polycyclic compound3 Jun 2025US 12,319,661 B2Eutec New Materials Technology (Suzhou) Co., Ltd.
- Method for preparing a compound comprising at least one imine function by a specific condensation reaction, and particular application of said method in the field of dyeing16 Jul 2024US 12,037,746 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Symmetric azomethine direct dyes, process for their preparation, cosmetic composition comprising at least one such dye and use thereof22 Nov 2022US 11,504,318 B2L'oreal
- Triazabutadienes as cleavable cross-linkers24 May 2022US 11,339,129 B2The Arizona Board of Regents on Behalf of the University of Arizon
- Transparent photovoltaic devices including vacuum deposited photoactive metal and metalloid complexes derived from diketopyrrolopyrrole4 Sep 2025US 2025/0280731 A1Ubiquitous Energy, Inc.
- Fluorogenic amino acids26 Jan 2023US 2023/0028318 A1President and Fellows of Harvard College
- Method for preparing a compound comprising at least one imine function by a specific condensation reaction, and particular application of said method in the field of dyeing29 Dec 2022US 2022/0412011 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Protected triazabutadiene compositions for cellular studies in intact biological systems1 Sep 2022US 2022/0274931 A1Arizona Board of Regents on Behalf of the University of Arizona
- Unsymmetrical squaraine dyes and apllications thereof21 Jul 2022US 2022/0227999 A1Council of Scientific and Industrial Research
Most cited
By later US patents
- Oxime ester photoinitiators263US 7,759,043 B2Ciba Specialty Chemicals Corporation · 2010
- Photochromic lens129US 4,756,973 AKureha Kagaku Kogyo Kabushiki Kaisha · 1988
- Cure-indicating molding and coating composition83US 5,583,178 AMinnesota Mining and Manufacturing Company · 1996
- Inkless reimageable printing paper and method35US 7,582,398 B2Xerox Corporation · 2009
- Multilayer organic photovoltaic elements33US 4,281,053 AEastman Kodak Company · 1981