C09B 23/102
Two heterocyclic rings linked carbon-to-carbon
Official title: {two heterocyclic rings linked carbon-to-carbon (C09B7/00 takes precedence)}
C09B23/102 (Two heterocyclic rings linked carbon-to-carbon) appears on 50 US grants and 28 published applications in this corpus.
Search patents in C09B- Granted patents
- 50
- Published applications
- 28
- Assignees
- 32
- Inventors
- 145
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluorenyl cyanine dyes2 Jun 2026US 12,644,001 B2Biotium, Inc.
- Organic dye with improved efficiency and uses thereof in photovoltaic cells19 May 2020US 10,655,016 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Organic dye for dye-sensitized solar cell5 Nov 2019US 10,465,073 B2Cnrs (Centre National De La Recherche Scientifique)
- 2,2′-bibenzo[D]imidazolidene compound having condensed rings at the 1-, 1′-, 3- and 3′-positions, and organic light-emitting element, display device, image information processing apparatus, lighting device, image forming apparatus and exposure unit, each containing the same3 Sep 2019US 10,403,827 B2Canon Kabushiki Kaisha
- Organic dye for a dye-sensitized solar cell12 Jun 2018US 9,997,299 B2Cnrs (Centre National De La Recherche Scientifique)
- Dyes for analysis of protein aggregation31 Oct 2024US 2024/0360318 A1Enzo Biochem, Inc.
- A Lithographic Printing Plate Precursor5 Oct 2023US 2023/0311474 A1AGFA Offset BV
- Fluorenyl cyanine dyes17 Aug 2023US 2023/0257587 A1Biotium, Inc.
- Dyes for analysis of protein aggregation14 Jan 2021US 2021/0009809 A1Enzo Life Sciences, Inc.
- Organic dye with improved efficiency and uses thereof in photovoltaic cells16 May 2019US 2019/0144677 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
Most cited
By later US patents
- Cure-indicating molding and coating composition83US 5,583,178 AMinnesota Mining and Manufacturing Company · 1996
- Photoresponsive material61US 4,724,201 AFuji Photo Film Co., Ltd. · 1988
- Cation-sensing composite structure and compounds for use therein47US 5,958,782 AMinnesota Mining and Manufacturing Company · 1999
- Composition, analytical element and method for the detection of bacteria43US 4,556,636 AEastman Kodak Company · 1985
- Leuco dye and image recording medium containing the same20US 6,143,480 AFuji Photo Film Co., Ltd. · 2000