C09B 31/14
Heterocyclic components
C09B31/14 (Heterocyclic components) appears on 120 US grants and 52 published applications in this corpus.
Search patents in C09B- Granted patents
- 120
- Published applications
- 52
- Assignees
- 52
- Inventors
- 226
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 11 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 2 | 3 |
| 2006 | 1 | 2 |
| 2007 | 4 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 2 |
| 2013 | 4 | 3 |
| 2014 | 3 | 5 |
| 2015 | 3 | 5 |
| 2016 | 1 | 1 |
| 2017 | 3 | 4 |
| 2018 | 0 | 5 |
| 2019 | 7 | 0 |
| 2020 | 2 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Colored fiber, method for manufacturing colored fiber, and fiber product29 Sep 2026US 12,747,518 B2Kaneka Corporation
- Anisotropic light absorption film and laminate10 Sep 2024US 12,085,742 B2FUJIFILM Corporation
- Coloring composition, light absorption anisotropic film, laminate, and image display device18 Aug 2020US 10,745,507 B2FUJIFILM Corporation
- Composition4 Aug 2020US 10,731,078 B2Sumitomo Chemical Company, Limited
- Optical film10 Dec 2019US 10,501,480 B2Sumitomo Chemical Company, Limited
- Alternative solvent systems and dye formulations10 Sep 2026US 2026/0265527 A1
- Synergists for Dimeric Pigments30 Jul 2026US 2026/0217982 A1Cabot Corporation
- Polarizing plate, liquid crystal panel using same, and photofabrication apparatus16 Jul 2026US 2026/0202599 A1Nippon Kayaku Kabushiki Kaisha
- Colored fiber, method for manufacturing colored fiber, and fiber product23 Jan 2025US 2025/0027232 A1Kaneka Corporation
- Compound, coloring composition, ink, toner, coloring resin composition, and composition for dyeing fiber15 Jul 2021US 2021/0214560 A1FUJIFILM Corporation
Most cited
By later US patents
- Azo dye with a 3-cyano- or 3-carbamoyl-4-methyl-2,6-diamino-pyridine coupling component27US 3,998,802 ABASF SE · 1976
- Azo dyes having 2,6-diaminopyridine derivatives as coupling components25US 4,042,578 ABadische Anilin- & Soda-Fabrik Aktiengesellschaft · 1977
- Aromatic disazo dyes and liquid-crystalline materials containing these dyes23US 4,667,020 ABASF SE · 1987
- Liquid crystal composition22US 4,588,517 AHitachi, Ltd. · 1986
- Disperse azo dyes of the 2,6-diaminopyridine series20US 3,950,321 ABASF SE · 1976