C07C 2603/26
Phenanthrenes
Official title: Phenanthrenes; Hydrogenated phenanthrenes
C07C2603/26 (Phenanthrenes) appears on 517 US grants and 506 published applications in this corpus.
Search patents in C07C- Granted patents
- 517
- Published applications
- 506
- Assignees
- 271
- Inventors
- 1,446
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 12 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 8 | 0 |
| 1989 | 11 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 12 | 0 |
| 1994 | 10 | 0 |
| 1995 | 11 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 16 | 0 |
| 1999 | 5 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 4 |
| 2002 | 11 | 6 |
| 2003 | 7 | 15 |
| 2004 | 9 | 14 |
| 2005 | 5 | 12 |
| 2006 | 7 | 7 |
| 2007 | 7 | 16 |
| 2008 | 6 | 22 |
| 2009 | 9 | 16 |
| 2010 | 10 | 24 |
| 2011 | 11 | 22 |
| 2012 | 14 | 27 |
| 2013 | 14 | 19 |
| 2014 | 17 | 27 |
| 2015 | 26 | 21 |
| 2016 | 16 | 25 |
| 2017 | 18 | 20 |
| 2018 | 16 | 23 |
| 2019 | 19 | 18 |
| 2020 | 9 | 23 |
| 2021 | 19 | 18 |
| 2022 | 15 | 24 |
| 2023 | 14 | 29 |
| 2024 | 15 | 34 |
| 2025 | 9 | 24 |
| 2026 | 18 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heterocyclic compound and organic light emitting device comprising same1 Sep 2026US 12,727,378 B2Lt Materials Co., Ltd.
- Quinone protected forms and conjugates4 Aug 2026US 12,697,392 B2Cambridge Enterprise Limited
- Organic light emitting diode28 Jul 2026US 12,692,243 B2LG Chem.Ltd.
- Organic electroluminescent materials and devices16 Jun 2026US 12,655,166 B2Universal Display Corporation
- Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device2 Jun 2026US 12,643,849 B2Idemitsu Kosan Co., Ltd.
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Organic compounds and organic light emitting diode comprising the same20 Aug 2026US 2026/0247855 A1Material Science Co., Ltd.
- Catalyst for sp3-carbon-hydrogen-bond primary amination reaction, and method for preparing primary amine compound13 Aug 2026US 2026/0234096 A1West China Second University Hospital, Sichuan University
- Method for producing polycarboxylic acid ester compound23 Jul 2026US 2026/0209159 A1Honshu Chemical Industry Co., Ltd.
- Compounds, compositions, methods of using, and methods for preparing compounds2 Jul 2026US 2026/0183260 A1The Institute for Stem Cell Biology and Regenerative Medicine (Instem)
Most cited
By later US patents
- Azlactone-related dopants in the emissive layer of an OLED141US 6,030,715 AThe Trustees of Princeton University · 2000
- Catalyst for direct reduction of carboxylic acid, process for preparation thereof and process for preparation of alcohol compound using the catalyst105US 5,426,246 AArakawa Chemical Industries, Ltd. · 1995
- Tricyclic-bis-enone derivatives and methods of use thereof88US 7,176,237 B2Trustees of Dartmouth College · 2007
- Liquid phase fluorination77US 5,093,432 AExfluor Research Corporation · 1992
- Light-emitting material for organic electroluminescence device, and organic electroluminescence device for which the light-emitting material is adapted73US 5,759,444 AToyo Ink Manufacturing Co., Ltd. · 1998