C09B 69/02
Dyestuff salts
Official title: Dyestuff salts, e.g. salts of acid dyes with basic dyes
C09B69/02 (Dyestuff salts) appears on 365 US grants and 202 published applications in this corpus.
Search patents in C09B- Granted patents
- 365
- Published applications
- 202
- Assignees
- 152
- Inventors
- 812
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 12 | 0 |
| 1978 | 14 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 12 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 11 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 5 |
| 2002 | 9 | 8 |
| 2003 | 12 | 18 |
| 2004 | 12 | 9 |
| 2005 | 2 | 16 |
| 2006 | 5 | 9 |
| 2007 | 5 | 12 |
| 2008 | 3 | 18 |
| 2009 | 10 | 16 |
| 2010 | 6 | 19 |
| 2011 | 17 | 11 |
| 2012 | 13 | 8 |
| 2013 | 9 | 6 |
| 2014 | 2 | 4 |
| 2015 | 3 | 3 |
| 2016 | 5 | 8 |
| 2017 | 3 | 6 |
| 2018 | 4 | 8 |
| 2019 | 6 | 3 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 4 |
| 2024 | 2 | 3 |
| 2025 | 2 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Labels comprising dibromopyridazinediones for immunoassays and methods of production and use thereof9 Jun 2026US 12,649,853 B2Siemens Healthcare Diagnostics Inc.
- Dye-exchanged zeolite marker14 Apr 2026US 12,600,871 B2Saes Getters S. P. A.
- Organic ammonium salts with traceability and detergent dispersant properties to liquid fuels and processes for their synthesis23 Sep 2025US 12,421,186 B2Instituto Mexicano Del Petroleo
- Color matched and bright fluorescent materials composed of small-molecule ionic lattices16 Sep 2025US 12,415,927 B2Indiana University Research and Technology Corporation
- Dye printing treatment liquid composition, composition set, printing method, and ink jet printing method5 Nov 2024US 12,134,700 B2Seiko Epson Corporation
- Coloring agent composition, film, optical filter, and near infrared absorbing compound22 Jan 2026US 2026/0022246 A1FUJIFILM Corporation
- Organic ammonium salts with traceability and detergent dispersant properties to liquid fuels and processes for their synthesis30 Oct 2025US 2025/0333374 A1Instituto Mexicano Del Petroleo
- Dye-exchanged zeolite marker14 Aug 2025US 2025/0257229 A1Saes Getters S. P. A.
- Near-Infrared Dyes And Conjugates For Targeting Tumors29 May 2025US 2025/0170278 A1Lahjavida, LLC
- Perfluorinated amide salts and their uses as ionic conducting materials1 Aug 2024US 2024/0253023 A1
Most cited
By later US patents
- Cationic dye-triarylmonoalkylorate anion complexes65US 5,151,520 AThe Mead Corporation · 1992
- Dye branched-alkyl borate photoinitiators62US 5,057,393 AThe Mead Corporation · 1991
- Perfluorinated amide salts and their uses as ionic conducting materials61US 6,319,428 B1Centre National De La Recherche Scientifique · 2001
- Laminating transparent or translucent materials using ionic dye-counter ion complexes56US 4,874,450 AThe Mead Corporation · 1989
- Process for the preparation of concentrated stable liquid dye solutions of CI Direct Yellow 11 utilizing an extended surface silica filter aid during a desalting procedure55US 4,617,380 ACiba-Geigy Corporation · 1986