C07C 251/16
Containing six-membered aromatic rings
Official title: containing six-membered aromatic rings
C07C251/16 (Containing six-membered aromatic rings) appears on 56 US grants and 40 published applications in this corpus.
Search patents in C07C- Granted patents
- 56
- Published applications
- 40
- Assignees
- 42
- Inventors
- 153
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 5 |
| 2005 | 2 | 5 |
| 2006 | 4 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 3 | 4 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 0 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pigmented and fluorescent compounds derived from the addition of a primary or secondary amine to an aldehyde31 Mar 2026US 12,590,209 B2Regents of the University of Minnesota
- Photoresponsive compound, adhesive, switching material, and toner containing the photoresponsive compound, and image forming method using the toner26 Aug 2025US 12,398,095 B2Konica Minolta, Inc.
- Halogenated benzylidene derivatives14 Jan 2025US 12,195,418 B2Renovel Innovations, Inc.
- Method for producing amino acid aminoalkyl ester or inorganic acid salt thereof28 Nov 2023US 11,827,586 B2Asahi Kasei Kabushiki Kaisha
- Syntheses of N-heterocyclic carbenes and intermediates therefor7 Feb 2023US 11,572,348 B2Umicore AG & Co. KG
- Method for producing alkylsilyloxy-substituted benzylamine compound25 Jun 2026US 2026/0176238 A1Sekisui Medical Co., Ltd.
- Antiozonant compositions and methods25 Jun 2026US 2026/0176383 A1
- Halogenated benzylidine derivatives24 Apr 2025US 2025/0129015 A1Renovel Innovations, Inc.
- Compounds for chronic disorders31 Aug 2023US 2023/0270692 A1Pillai Universal LLC
- Halogenated benzylidine derivatives6 Apr 2023US 2023/0107812 A1Renovel Innovations, Inc.
Most cited
By later US patents
- Stilbene derivatives as anticancer agents78US 5,430,062 AResearch Corporation Technologies, Inc. · 1995
- .alpha.-substituted phenylacetic acid derivative, its production and agricultural fungicide containing it61US 5,948,819 AShionogi & Co., Ltd. · 1999
- 1,4-diamino-2,3-dihydroxybutanes29US 5,294,720 AThe DuPont Merck Pharmaceutical Company · 1994
- α-substituted phenylacetic acid derivative, its production and agricultural fungicide containing it21US 6,313,150 B1Shionogi & Co., Ltd. · 2001
- Chemical compounds20US 5,434,184 AZeneca Limited · 1995