C07C 217/92
The nitrogen atom of at least one of the amino groups being
Official title: the nitrogen atom of at least one of the amino groups being further bound to a carbon atom of a six-membered aromatic ring
C07C217/92 (The nitrogen atom of at least one of the amino groups being) appears on 202 US grants and 197 published applications in this corpus.
Search patents in C07C- Granted patents
- 202
- Published applications
- 197
- Assignees
- 122
- Inventors
- 593
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 12 | 10 |
| 2003 | 7 | 23 |
| 2004 | 23 | 9 |
| 2005 | 4 | 7 |
| 2006 | 4 | 8 |
| 2007 | 6 | 6 |
| 2008 | 5 | 6 |
| 2009 | 3 | 8 |
| 2010 | 4 | 11 |
| 2011 | 3 | 10 |
| 2012 | 7 | 5 |
| 2013 | 2 | 8 |
| 2014 | 5 | 24 |
| 2015 | 7 | 9 |
| 2016 | 7 | 5 |
| 2017 | 4 | 6 |
| 2018 | 8 | 7 |
| 2019 | 4 | 4 |
| 2020 | 4 | 5 |
| 2021 | 5 | 9 |
| 2022 | 4 | 5 |
| 2023 | 6 | 2 |
| 2024 | 6 | 4 |
| 2025 | 2 | 2 |
| 2026 | 3 | 3 |
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.
- Lipoxygenase inhibitors22 Sep 2026US 12,741,926 B2SRI International
- Compound, and composition for forming hole transporting layer for perovskite solar cells15 Sep 2026US 12,735,395 B2Tokyo Chemical Industry Co., Ltd.
- Compound, preparation method and use thereof and perovskite solar cell containing same7 Oct 2025US 12,439,765 B2Contemporary Amperex Technology (Hong Kong) Limited
- Ferroelectric fluorescent self-assembly compound and organic electronic element including the same10 Jun 2025US 12,325,693 B2Industry-Academic Cooperation Foundation, Yonsei University
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- Photochromic compound, propargyl alcohol compound, curable composition, optical article, lens, and spectacles24 Sep 2026US 2026/0286216 A1Tokuyama Corporation
- Antioxidant composition having good ozone aging resistance, and rubber composition and use thereof14 May 2026US 2026/0132271 A1Sennics Co., Ltd.
- High and multiple redox potential, stable, and soluble bis-diarylamine derivatives and uses thereof2 Oct 2025US 2025/0304526 A1University of Kentucky Research Foundation
- Antidegradant compounds and uses thereof27 Feb 2025US 2025/0066304 A1
Most cited
By later US patents
- Tetraaryl benzidines128US 5,639,914 AHodogaya Chemical Co., Ltd. · 1997
- Amine compound and electro-luminescence device comprising same122US 5,707,747 AHodogaya Chemical Co., Ltd. · 1998
- Light-emitting material for organo-electroluminescence device and organo-electroluminescence device for which the light-emitting material is adapted59US 5,811,834 AToyo Ink Manufacturing Co., Ltd. · 1998
- Organic electroluminescence device and phenylenediamine derivative46US 6,541,129 B1Idemitsu Kosan Co., Ltd. · 2003
- Electrophotographic photoconductor and triphenylamine compounds for use in the same44US 4,957,838 ARicoh Company, Ltd. · 1990