C09B 57/008
Triarylamine dyes containing no other chromophores
Official title: {Triarylamine dyes containing no other chromophores}
C09B57/008 (Triarylamine dyes containing no other chromophores) appears on 437 US grants and 599 published applications in this corpus.
Search patents in C09B- Granted patents
- 437
- Published applications
- 599
- Assignees
- 159
- Inventors
- 1,138
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 3 |
| 2004 | 2 | 6 |
| 2005 | 1 | 5 |
| 2006 | 2 | 11 |
| 2007 | 4 | 14 |
| 2008 | 3 | 19 |
| 2009 | 10 | 25 |
| 2010 | 5 | 45 |
| 2011 | 11 | 47 |
| 2012 | 22 | 52 |
| 2013 | 38 | 52 |
| 2014 | 28 | 49 |
| 2015 | 52 | 68 |
| 2016 | 43 | 45 |
| 2017 | 39 | 30 |
| 2018 | 42 | 42 |
| 2019 | 32 | 25 |
| 2020 | 24 | 22 |
| 2021 | 22 | 8 |
| 2022 | 17 | 11 |
| 2023 | 10 | 8 |
| 2024 | 10 | 4 |
| 2025 | 3 | 3 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aromatic amine derivative, and organic electroluminescent element using same6 Oct 2026US 12,753,145 B2Idemitsu Kosan Co., Ltd.
- Fluorescent organic light emitting elements having high efficiency5 May 2026US 12,622,170 B2UDC Ireland Limited
- Photochromic compound and curable composition containing the photochromic compound10 Mar 2026US 12,570,894 B2Tokuyama Corporation
- Compound or salt thereof17 Feb 2026US 12,551,578 B2Hamamatsu Photonics K.K.
- Organic electroluminescent materials and devices6 Jan 2026US 12,520,715 B2University of Southern California
- Benzonaphthofuran-containing oxazole organic compound and use thereof23 Apr 2026US 2026/0114111 A1Ningbo Lumilan Advanced Materials Co., Ltd.
- Coloring agent composition, film, optical filter, and near infrared absorbing compound22 Jan 2026US 2026/0022246 A1FUJIFILM Corporation
- Dyes for monitoring cell states5 Jun 2025US 2025/0179299 A1Saguaro Technologies Inc.
- Photochromic compound, naphthol derivative, curable composition, optical article, lens, and eyeglasses17 Apr 2025US 2025/0122163 A1Tokuyama Corporation
- Optical filter and imaging device13 Feb 2025US 2025/0051579 A1AGC Inc.
Most cited
By later US patents
- Compound for use in organic electroluminescent device and organic electroluminescent device195US 7,993,760 B2Nippon Steel Chemical Co., Ltd. · 2011
- Imaging member having a charge transport layer of a terphenyl diamine and a polycarbonate resin64US 4,273,846 AXerox Corporation · 1981
- Organic electroluminescent device60US 6,743,948 B1Idemitsu Kosan Co., Ltd. · 2004
- Photoelectric conversion device, photoelectric conversion device material, photosensor and imaging device52US 8,525,577 B2FUJIFILM Corporation · 2013
- Organic electroluminescent device50US 5,858,563 ASanyo Electric Co., Ltd. · 1999