C09B 41/00
Special methods of performing the coupling reaction
Official title: Special methods of performing the coupling reaction {(reaction of mixtures of diazo and coupling components, C09B67/0033)}
C09B41/00 (Special methods of performing the coupling reaction) appears on 145 US grants and 45 published applications in this corpus.
Search patents in C09B- Granted patents
- 145
- Published applications
- 45
- Assignees
- 64
- Inventors
- 310
- Latest grant
- 10 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 5 |
| 2005 | 1 | 2 |
| 2006 | 3 | 4 |
| 2007 | 3 | 4 |
| 2008 | 0 | 2 |
| 2009 | 2 | 3 |
| 2010 | 4 | 6 |
| 2011 | 5 | 4 |
| 2012 | 0 | 0 |
| 2013 | 4 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pigment composition10 Jan 2023US 11,549,018 B2Sanyo Color Works, Ltd.
- Nano dye molecule, color filter, and display panel27 Sep 2022US 11,453,781 B2Tcl China Star Optoelectronics Technology Co., Ltd.
- Magenta ink for ink-jet recording12 Nov 2019US 10,472,532 B2Toyo Ink Co., Ltd.
- Solvent medium for diazotization reaction27 Mar 2018US 9,926,263 B2Nantong Textile & Silk Industrial Technology Research Institute
- Method for continuously preparing water-soluble azo dye by coupling a nebulizer with a pipeline19 Jul 2016US 9,394,445 B2Dalian University of Technology
- Click chemistry ligand5 Mar 2026US 2026/0062668 A1Northeastern University
- Method for producing water-soluble azo dyes by continuous diazotization and continuous coupling in pipeline reactor13 Jun 2024US 2024/0191080 A1Dalian University of Technology
- A continuous process for the synthesis of azo dyes involving in-situ generation of diazonium salts8 Dec 2022US 2022/0389226 A1
- Nano dye molecule, color filter, and display panel17 Jun 2021US 2021/0179854 A1Tcl China Star Optoelectronics Technology Co., Ltd.
- Pigment composition29 Aug 2019US 2019/0264030 A1Sanyo Color Works, Ltd.
Most cited
By later US patents
- Method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium51US 5,389,524 AKemisk Vaerk Koge A/S · 1995
- Printing inks containing nucleated organic pigments35US 4,204,871 ASun Chemical Corporation · 1980
- Neutron and/or gamma radiation detecting system31US 4,829,185 AKernforschungszentrum Karlsruhe GmbH · 1989
- Process for preparing azo colorants28US 6,548,647 B2Clariant GmbH · 2003
- Nanosized particles of benzimidazolone pigments24US 7,503,973 B1Xerox Corporation · 2009