C09B 23/00
Methine or polymethine dyes
Official title: Methine or polymethine dyes, e.g. cyanine dyes
C09B23/00 (Methine or polymethine dyes) appears on 2,098 US grants and 1,805 published applications in this corpus.
Search patents in C09B- Granted patents
- 2,098
- Published applications
- 1,805
- Assignees
- 700
- Inventors
- 4,095
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 47 | 0 |
| 1977 | 39 | 0 |
| 1978 | 33 | 0 |
| 1979 | 20 | 0 |
| 1980 | 19 | 0 |
| 1981 | 32 | 0 |
| 1982 | 13 | 0 |
| 1983 | 19 | 0 |
| 1984 | 11 | 0 |
| 1985 | 19 | 0 |
| 1986 | 18 | 0 |
| 1987 | 6 | 0 |
| 1988 | 20 | 0 |
| 1989 | 31 | 0 |
| 1990 | 44 | 0 |
| 1991 | 37 | 0 |
| 1992 | 41 | 0 |
| 1993 | 48 | 0 |
| 1994 | 37 | 0 |
| 1995 | 44 | 0 |
| 1996 | 47 | 0 |
| 1997 | 38 | 0 |
| 1998 | 37 | 0 |
| 1999 | 44 | 0 |
| 2000 | 36 | 0 |
| 2001 | 40 | 10 |
| 2002 | 39 | 50 |
| 2003 | 34 | 64 |
| 2004 | 46 | 59 |
| 2005 | 26 | 46 |
| 2006 | 26 | 60 |
| 2007 | 32 | 59 |
| 2008 | 37 | 67 |
| 2009 | 40 | 86 |
| 2010 | 65 | 104 |
| 2011 | 64 | 83 |
| 2012 | 70 | 81 |
| 2013 | 72 | 87 |
| 2014 | 78 | 91 |
| 2015 | 75 | 107 |
| 2016 | 68 | 76 |
| 2017 | 66 | 91 |
| 2018 | 64 | 81 |
| 2019 | 78 | 85 |
| 2020 | 59 | 70 |
| 2021 | 52 | 52 |
| 2022 | 39 | 59 |
| 2023 | 36 | 69 |
| 2024 | 45 | 59 |
| 2025 | 41 | 59 |
| 2026 | 26 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09B 23/02The polymethine chain containing an odd number of >ch- or >c[alkyl]- groups1,147
- C09B 23/0066The polymethine chain being part of a carbocyclic ring515
- C09B 23/14Styryl dyes464
- C09B 23/10The polymethine chain containing an even number of >ch- groups457
- C09B 23/0008Substituted on the polymethine chain354
- C09B 23/0075The polymethine chain being part of an heterocyclic ring193
- C09B 23/16The polymethine chain containing hetero atoms167
- C09B 23/0091Methine or polymethine dyes: having only one heterocyclic ring at one end160
All 9 subgroupsShow fewer
Recent patents
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- Compound, preparation method therefor, composition, kit and use thereof25 Aug 2026US 12,715,844 B2Signdo Biotechnology (Suzhou) Co., Ltd
- Calibration aid for optical imaging applications7 Jul 2026US 12,674,748 B2Centre National De La Recherche Scientifique
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- Laminate, display device, and organic electroluminescent display device8 Oct 2026US 2026/0314244 A1FUJIFILM Corporation
- Modified cyanine dyes and conjugates thereof17 Sep 2026US 2026/0274824 A1Bracco Imaging S.P.A.
- Development of highly fluorogenic styrene probes for visualizing rna in live cells10 Sep 2026US 2026/0265525 A1University of Southern California
- Cyanine photoacid compounds containing nitrogen heterocycles for reversible, external control of local acidity10 Sep 2026US 2026/0265526 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Fluorescent probes for magl20 Aug 2026US 2026/0241039 A1Hoffmann-La Roche Inc.
Most cited
By later US patents
- Method for labeling and detecting materials employing arylsulfonate cyanine dyes395US 5,268,486 ACarnegie-Mellon Unversity · 1993
- Substituted unsymmetrical cyanine dyes with selected permeability384US 5,658,751 AMolecular Probes, Inc. · 1997
- Cyclic-substituted unsymmetrical cyanine dyes371US 5,436,134 AMolecular Probes, Inc. · 1995
- Chemically reactive unsymmetrical cyanine dyes and their conjugates289US 5,863,753 AMolecular Probes, Inc. · 1999
- Energy transfer dyes with enchanced fluorescence280US 5,800,996 AThe Perkin-Elmer Corporation · 1998