C07C 211/55
Diphenylamines
C07C211/55 (Diphenylamines) appears on 114 US grants and 108 published applications in this corpus.
Search patents in C07C- Granted patents
- 114
- Published applications
- 108
- Assignees
- 82
- Inventors
- 407
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 3 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 2 | 4 |
| 2006 | 1 | 3 |
| 2007 | 5 | 5 |
| 2008 | 2 | 5 |
| 2009 | 3 | 3 |
| 2010 | 1 | 5 |
| 2011 | 2 | 3 |
| 2012 | 3 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 5 | 4 |
| 2016 | 2 | 9 |
| 2017 | 2 | 7 |
| 2018 | 8 | 5 |
| 2019 | 3 | 4 |
| 2020 | 7 | 5 |
| 2021 | 3 | 7 |
| 2022 | 4 | 4 |
| 2023 | 3 | 5 |
| 2024 | 5 | 7 |
| 2025 | 2 | 5 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mediator1 Sep 2026US 12,723,272 B2Kikkoman Corporation
- Polyalkyl p-phenylenediamine anti-degradants and intermediates and preparation method thereof28 Jul 2026US 12,692,220 B2Sennics Co., Ltd.
- Indene compounds, pharmaceutical compositions thereof, and their therapeutic applications9 Jun 2026US 12,649,712 B2NucMito Pharmaceuticals Co. Ltd.
- Light-emitting device and method of manufacturing the same4 Nov 2025US 12,459,949 B2Samsung Display Co., Ltd.
- Small molecule inhibitors of TEAD transcription factors7 Jan 2025US 12,187,722 B2The General Hospital Corporation
- Compositions comprising 2,2,4-trimethyl-n-phenyl-1,2- dihydroquinolin-6-amine17 Sep 2026US 2026/0274805 A1Flexsys IP Holdings, LLC
- Para-phenylenediamine derivatives from ketones and aldehydes for antiozonant and antioxidant applications18 Jun 2026US 2026/0167600 A1The Goodyear Tire & Rubber Company
- Alpha-paraphenylenediamine esters for antiozonant and antioxidant applications18 Jun 2026US 2026/0167601 A1The Goodyear Tire & Rubber Company
- Organic electroluminescent compound and organic electroluminescent device comprising the same18 Jun 2026US 2026/0173647 A1
- High purity alkynyl amines for selective deposition11 Jun 2026US 2026/0159946 A1Versum Materials US, LLC
Most cited
By later US patents
- 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
- Alkylation of N′-phenyl-N-alkylphenylenediamines in ionic liquid and N′-phenyl-N-alkyl(alkylphenylene) diamines produced thereby50US 7,563,929 B2Chemtura Corporation · 2009
- Electrophotographic photoconductor and triphenylamine compounds for use in the same44US 4,957,838 ARicoh Company, Ltd. · 1990
- Cyclopropylamine inhibitors of oxidases23US 9,061,966 B2Oryzon Genomics, S.A. · 2015
- Nonylated diphenylamines22US 6,315,925 B1Ciba Specialty Chemicals Corporation · 2001