C07C 2603/92
Systems containing at least three condensed rings: with a condensed ring system
Official title: with a condensed ring system consisting of at least two mutually uncondensed aromatic ring systems, linked by an annular structure formed by carbon chains on non-adjacent positions of the aromatic system, e.g. cyclophanes
C07C2603/92 (Systems containing at least three condensed rings: with a condensed ring system) appears on 118 US grants and 97 published applications in this corpus.
Search patents in C07C- Granted patents
- 118
- Published applications
- 97
- Assignees
- 93
- Inventors
- 338
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 3 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 2 | 5 |
| 2008 | 3 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 5 |
| 2011 | 3 | 5 |
| 2012 | 6 | 9 |
| 2013 | 5 | 4 |
| 2014 | 8 | 7 |
| 2015 | 7 | 8 |
| 2016 | 5 | 4 |
| 2017 | 5 | 7 |
| 2018 | 4 | 2 |
| 2019 | 5 | 3 |
| 2020 | 3 | 2 |
| 2021 | 2 | 4 |
| 2022 | 4 | 4 |
| 2023 | 2 | 2 |
| 2024 | 3 | 4 |
| 2025 | 1 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Materials and methods for iodine capture30 Jun 2026US 12,671,088 B2University of Houston System
- Method for inhibiting or disrupting biofilm formation, or reducing biofilm26 Aug 2025US 12,398,092 B2Ramot at Tel-Aviv University Ltd.
- Rechargeable aluminum organic batteries27 Aug 2024US 12,074,314 B2King Abdulaziz City for Science and Technology (KACST)
- Colored functionalized [2,2] paracyclophane and colored chemical film9 Apr 2024US 11,952,498 B2National Taiwan University
- Complexation of pirfenidone with polyphenolic calixarene or resorcin[4]arenes2 Jan 2024US 11,858,899 B2University of Cincinnati
- Materials and methods for iodine capture24 Sep 2026US 2026/0290827 A1University of Houston System
- P-xylene cyclic dimer derivative for preparing parylene film, and preparation method and use thereof26 Mar 2026US 2026/0085028 A1Soochow University
- Room temperature polariton condensation22 Jan 2026US 2026/0022293 A1Research Foundation of the City University of New York
- Tribenzotriquinacene with axial aryl group and method for preparing the same7 Aug 2025US 2025/0250215 A1National Yang Ming.Chiao Tung University
- Electrochemical type biosensors comprising resorcarenes27 Feb 2025US 2025/0067701 A1Biosensing S.r.l.
Most cited
By later US patents
- Salicyclic calixarenes and their use as lubricant additives33US 6,200,936 B1The Lubrizol Corporation · 2001
- Process for the preparation of [2,2]-paracyclophane31US 4,532,369 AMerck Patent GmbH · 1985
- Process for the preparation of (2,2)-paracyclophane and derivatives thereof29US 4,795,838 AMontedison S.p.A. · 1989
- Process for the preparation of (2,2)-paracyclophane and derivatives thereof29US 4,816,608 AMontedison S.p.A. · 1989
- Process for the preparation of (2,2)-paracyclophane and derivatives thereof29US 4,853,488 AMontedison S.p.A. · 1989