C07C 13/62
With more than three condensed rings
Official title: with more than three condensed rings
C07C13/62 (With more than three condensed rings) appears on 345 US grants and 410 published applications in this corpus.
Search patents in C07C- Granted patents
- 345
- Published applications
- 410
- Assignees
- 135
- Inventors
- 739
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 14 |
| 2003 | 5 | 9 |
| 2004 | 12 | 15 |
| 2005 | 9 | 15 |
| 2006 | 5 | 10 |
| 2007 | 9 | 11 |
| 2008 | 6 | 23 |
| 2009 | 3 | 28 |
| 2010 | 12 | 15 |
| 2011 | 24 | 37 |
| 2012 | 23 | 21 |
| 2013 | 18 | 28 |
| 2014 | 20 | 33 |
| 2015 | 34 | 16 |
| 2016 | 18 | 20 |
| 2017 | 13 | 16 |
| 2018 | 16 | 15 |
| 2019 | 21 | 16 |
| 2020 | 13 | 16 |
| 2021 | 15 | 10 |
| 2022 | 10 | 10 |
| 2023 | 7 | 7 |
| 2024 | 5 | 8 |
| 2025 | 4 | 9 |
| 2026 | 10 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compound, organic electroluminescent element and electronic device28 Jul 2026US 12,692,212 B2Idemitsu Kosan Co., Ltd.
- Organic electroluminescent element and electronic device using same30 Jun 2026US 12,668,739 B2Idemitsu Kosan Co., Ltd.
- Organometallic compound and light-emitting device including the same9 Jun 2026US 12,649,756 B2Samsung Display Co., Ltd.
- Organic electroluminescent element and electronic device24 Mar 2026US 12,583,864 B2Idemitsu Kosan Co., Ltd.
- Composition for forming organic film, patterning process, and compound24 Mar 2026US 12,584,023 B2Shin-Etsu Chemical Co., Ltd.
- Organic electroluminescent element and electronic device1 Oct 2026US 2026/0297107 A1Idemitsu Kosan Co., Ltd.
- Glycosylation and alkylation method involving benziodoxole reagent11 Jun 2026US 2026/0159507 A1Huazhong University of Science and Technology
- Polycyclic aromatic molecules, pitch and graphite, having low impurities and large crystalline structure, and products made therefrom7 May 2026US 2026/0125333 A1H Quest Vanguard, Inc.
- Compound, organic electroluminescent device, and display apparatus16 Apr 2026US 2026/0107682 A1Boe Technology Group Co., Ltd.
- Precursor compound of tetracyclic hydrocarbon and preparation method thereof2 Apr 2026US 2026/0092026 A1
Most cited
By later US patents
- Aggregate organic light emitting diode devices with improved operational stability206US 7,175,922 B2Eastman Kodak Company · 2007
- Imaging system using novel charge transport layer110US 4,233,384 AXerox Corporation · 1980
- Materials for organic electroluminescent devices49US 8,852,756 B2Merck Patent GmbH · 2014
- Fluorene compound and organic luminescent device using the same41US 7,241,513 B2Canon Kabushiki Kaisha · 2007
- Ethynyl adamantane derivatives and methods of polymerization thereof40US 5,017,734 A1991