C09B 57/02
Coumarine dyes
C09B57/02 (Coumarine dyes) appears on 249 US grants and 250 published applications in this corpus.
Search patents in C09B- Granted patents
- 249
- Published applications
- 250
- Assignees
- 156
- Inventors
- 690
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 2 |
| 2003 | 3 | 5 |
| 2004 | 0 | 2 |
| 2005 | 3 | 9 |
| 2006 | 4 | 5 |
| 2007 | 1 | 5 |
| 2008 | 2 | 7 |
| 2009 | 7 | 9 |
| 2010 | 2 | 9 |
| 2011 | 8 | 12 |
| 2012 | 6 | 5 |
| 2013 | 9 | 6 |
| 2014 | 10 | 14 |
| 2015 | 14 | 17 |
| 2016 | 8 | 16 |
| 2017 | 13 | 10 |
| 2018 | 15 | 20 |
| 2019 | 12 | 14 |
| 2020 | 11 | 11 |
| 2021 | 9 | 14 |
| 2022 | 11 | 11 |
| 2023 | 4 | 17 |
| 2024 | 8 | 7 |
| 2025 | 10 | 14 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of forming an object in a volume of a photohardenable composition, photohardenable compositions, and photoinitiators25 Aug 2026US 12,715,998 B2Quadratic 3D, Inc.
- Coumarin-based crosslinking reagents28 Jul 2026US 12,693,297 B2Ventana Medical Systems, Inc.
- Photochromic compound, naphthol derivative, curable composition, optical article, lens, and eyeglasses7 Apr 2026US 12,595,408 B2Tokuyama Corporation
- Photochromic compound and curable composition containing the photochromic compound10 Mar 2026US 12,570,894 B2Tokuyama Corporation
- Deuterated fluorophores17 Feb 2026US 12,552,938 B2Howard Hughes Medical Institute
- Coumarin-based crosslinking reagents17 Sep 2026US 2026/0276646 A1Ventana Medical Systems, Inc.
- Fluorescent probes for magl20 Aug 2026US 2026/0241039 A1Hoffmann-La Roche Inc.
- Fluorescence imaging reagent for lipid droplets in tissues and cells20 Aug 2026US 2026/0241041 A1National University Corporation Gunma University
- Molecular renal probes for detecting acute kidney injury11 Jun 2026US 2026/0158174 A1Nanyang Technological University
- Dynamic Covalent Chemistry of Spiropyrans for Synthesis of Photoswitchable Photoinitiators and Uses Thereof, and Process for Locally Polymerizing a Starting Material by Dual Color Photopolymerization16 Apr 2026US 2026/0102962 A1xolo GmbH
Most cited
By later US patents
- Polymerizable polyalkoxylated naphthopyrans186US 6,113,814 ATransitions Optical, Inc. · 2000
- Labeled nucleoside polyphosphates181US 7,041,812 B2Amersham Biosciences AB · 2006
- Polymeric matrix compatibilized naphthopyrans133US 6,555,028 B2Transitions Optical, Inc. · 2003
- Derivatives of 6,8-difluoro-7-hydroxycoumarin122US 5,830,912 AMolecular Probes, Inc. · 1998
- Photochromic heterocyclic fused indenonaphthopyrans102US 5,723,072 APPG Industries, Inc. · 1998