C07C 43/21
Containing rings other than six-membered aromatic rings
Official title: containing rings other than six-membered aromatic rings
C07C43/21 (Containing rings other than six-membered aromatic rings) appears on 156 US grants and 107 published applications in this corpus.
Search patents in C07C- Granted patents
- 156
- Published applications
- 107
- Assignees
- 125
- Inventors
- 474
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 4 |
| 2004 | 1 | 0 |
| 2005 | 2 | 6 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 6 |
| 2010 | 3 | 7 |
| 2011 | 7 | 7 |
| 2012 | 4 | 2 |
| 2013 | 3 | 5 |
| 2014 | 3 | 5 |
| 2015 | 9 | 9 |
| 2016 | 8 | 9 |
| 2017 | 7 | 7 |
| 2018 | 2 | 8 |
| 2019 | 9 | 4 |
| 2020 | 3 | 7 |
| 2021 | 5 | 2 |
| 2022 | 2 | 5 |
| 2023 | 3 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pattern forming method and plasma processing method19 May 2026US 12,630,724 B2Tokyo Electron Limited
- 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-7,7′-diol6 May 2025US 12,291,497 B2Zhejiang University
- Organic compound and organic light-emitting device24 Dec 2024US 12,172,941 B2Canon Kabushiki Kaisha
- Liquid crystal mixture and liquid crystal display26 Mar 2024US 11,939,511 B2Merck Patent GmbH
- Catalyst system for olefin polymerization and use thereof12 Dec 2023US 11,840,508 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- One-pot synthesis of substituted flourenes2 Apr 2026US 2026/0092028 A1Chevron Phillips Chemical Company LP
- Novel aromatic molecules13 Nov 2025US 2025/0346549 A2XENIOPRO GmbH
- Tribenzotriquinacene with axial aryl group and method for preparing the same7 Aug 2025US 2025/0250215 A1National Yang Ming.Chiao Tung University
- Novel aromatic molecules13 Mar 2025US 2025/0084023 A2XENIOPRO GmbH
- Pattern forming method and plasma processing method26 Sep 2024US 2024/0318014 A1Tokyo Electron Limited
Most cited
By later US patents
- Antidepressant derivatives of cis-4-phenyl-1,2,3,4-tetrahydro-1-naphthalenamine102US 4,536,518 APfizer Inc. · 1985
- Cyclohexane derivatives76US 4,510,069 AMerck Patent GmbH · 1985
- Liquid crystalline cyclohexylphenyl derivatives74US 4,400,293 AMerck Patent GmbH · 1983
- Disubstituted ethanes61US 4,439,015 AHoffmann-La Roche Inc. · 1984
- Colorless liquid crystalline compounds61US 4,564,694 AHitachi, Ltd. · 1986