C09B 29/3608
Containing a five-membered heterocyclic ring with only one nitrogen as heteroatom
Official title: {containing a five-membered heterocyclic ring with only one nitrogen as heteroatom}
C09B29/3608 (Containing a five-membered heterocyclic ring with only one nitrogen as heteroatom) appears on 48 US grants and 24 published applications in this corpus.
Search patents in C09B- Granted patents
- 48
- Published applications
- 24
- Assignees
- 19
- Inventors
- 108
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 4 |
| 2006 | 3 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 3 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same26 Aug 2025US 12,398,326 B2LG Chem.Ltd.
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same10 Dec 2024US 12,163,084 B2LG Chem.Ltd.
- Compound, composition for anisotropic dye films including the compound, anisotropic dye film, and optical element30 Jul 2024US 12,049,583 B2Mitsubishi Chemical Corporation
- Pigment dispersing agent, pigment composition, and pigment coloring agent30 Mar 2021US 10,961,227 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Black pigment, method for producing same, pigment dispersion liquid, photosensitive composition and cured product of said photosensitive composition28 Jul 2020US 10,723,884 B2Toray Industries, Inc.
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same9 Nov 2023US 2023/0357638 A1LG Chem.Ltd.
- Monoazo dichroic dye compound, polarizing plate composition comprising same, polarizing plate formed therefrom, and optical device comprising same26 Oct 2023US 2023/0340331 A1LG Chem.Ltd.
- Compound, composition for anisotropic dye films including the compound, anisotropic dye film, and optical element18 May 2023US 2023/0151275 A1Mitsubishi Chemical Corporation
- Pigment dispersing agent, pigment composition, and pigment coloring agent3 Dec 2020US 2020/0377480 A1Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Black pigment, method for producing same, pigment dispersion liquid, photosensitive composition and cured product of said photosensitive composition18 Jul 2019US 2019/0218396 A1Toray Industries, Inc.
Most cited
By later US patents
- Near-infrared reflecting composite pigments76US 6,521,038 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd. · 2003
- Process for detecting the completion of the sterilizing treatment using a color changing indicator composition41US 4,015,937 ASakata Shokai, Ltd. · 1977
- Dye for ink jet ink25US 6,468,338 B1Eastman Kodak Company · 2002
- Indoline coupled isothiazole azo dyes22US 4,354,970 AEastman Kodak Company · 1982
- Azo coupling in two-phase water-alcohol mixtures17US 4,313,872 ACassella Aktiengesellschaft · 1982