C09B 35/021
Characterised by two coupling components of the same type
Official title: characterised by two coupling components of the same type
C09B35/021 (Characterised by two coupling components of the same type) appears on 170 US grants and 75 published applications in this corpus.
Search patents in C09B- Granted patents
- 170
- Published applications
- 75
- Assignees
- 68
- Inventors
- 353
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 2 | 6 |
| 2005 | 3 | 2 |
| 2006 | 3 | 6 |
| 2007 | 1 | 3 |
| 2008 | 3 | 9 |
| 2009 | 4 | 11 |
| 2010 | 9 | 4 |
| 2011 | 5 | 6 |
| 2012 | 3 | 1 |
| 2013 | 4 | 3 |
| 2014 | 5 | 2 |
| 2015 | 1 | 3 |
| 2016 | 2 | 3 |
| 2017 | 1 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 3 |
| 2025 | 1 | 0 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09B 35/03In which the coupling component is a heterocyclic compound66
- C09B 35/023In which the coupling component is a hydroxy or polyhydroxy compound35
- C09B 35/033In which the coupling component is an arylamide of an o-hydroxy-carboxylic acid24
- C09B 35/035In which the coupling component containing an activated methylene group20
- C09B 35/027In which the coupling component is a hydroxy-amino compound17
- C09B 35/025In which the coupling component is an amine or polyamine10
Recent patents
- Ink composition for ink jet printing15 Sep 2026US 12,735,591 B2Seiko Epson Corporation
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material21 Apr 2026US 12,606,717 B2DIC Corporation
- Method for preparing a stable Trypan Blue solution24 Feb 2026US 12,559,629 B2Beckman Coulter, Inc.
- Optical sheet and optical component14 Oct 2025US 12,442,954 B2Sumitomo Bakelite Co., Ltd.
- DNA polymerase gamma inhibitor and uses thereof30 Jan 2024US 11,883,419 B2Acibadem Mehmet Ali Aydinlar Universitesi
- Pigments and related methods10 Sep 2026US 2026/0265528 A1Kebotix, Inc.
- Ink Composition For Ink Jet Printing9 May 2024US 2024/0150601 A1Seiko Epson Corporation
- Azo pigment, ink, paint, colorant for plastics, colored molded article, colorant for stationery and writing materials, printing agent, toner, dispersion and resist for color filters, and cosmetic material14 Mar 2024US 2024/0084155 A1DIC Corporation
- Compositions and methods for stable trypan blue solutions22 Feb 2024US 2024/0059898 A1Beckman Coulter, Inc.
- Optical sheet and optical component12 Jan 2023US 2023/0011467 A1Sumitomo Bakelite Co., Ltd.
Most cited
By later US patents
- Dimeric azo pyridone colorants103US 6,713,614 B2Xerox Corporation · 2004
- Processes for preparing dianthranilate compounds and diazopyridone colorants95US 6,576,747 B1Xerox Corporation · 2003
- Method for making dimeric azo pyridone colorants95US 6,576,748 B1Xerox Corporation · 2003
- Colorant compounds84US 7,381,831 B1Xerox Corporation · 2008
- Aqueous ink composition81US 4,711,668 ARicoh Company, Ltd. · 1987