C07C 35/44
With a hydroxy group on a condensed ring system having more than
Official title: with a hydroxy group on a condensed ring system having more than three rings
C07C35/44 (With a hydroxy group on a condensed ring system having more than) appears on 33 US grants and 40 published applications in this corpus.
Search patents in C07C- Granted patents
- 33
- Published applications
- 40
- Assignees
- 35
- Inventors
- 106
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 0 | 5 |
| 2007 | 1 | 2 |
| 2008 | 1 | 5 |
| 2009 | 2 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 3 | 3 |
| 2013 | 1 | 3 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 3 | 3 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition for forming organic film, patterning process, and compound24 Mar 2026US 12,584,023 B2Shin-Etsu Chemical Co., Ltd.
- Compositions comprising hyper harmonized hydroxyl modified fullerene substances17 Mar 2026US 12,576,108 B2Fieldpoint (Cyprus) Limited
- Abietanes and methods of making and using the same11 Feb 2025US 12,221,419 B2The Florida State University Research Foundation, Inc.
- Complexation of pirfenidone with polyphenolic calixarene or resorcin[4]arenes2 Jan 2024US 11,858,899 B2University of Cincinnati
- Composition for resist underlayer film formation, resist underlayer film and forming method thereof, production method of patterned substrate, and compound21 Sep 2021US 11,126,084 B2Jsr Corporation
- Abietanes and methods of making and using the same15 May 2025US 2025/0154106 A1The Florida State University Research Foundation, Inc.
- Abietanes and methods of making and using the same2 May 2024US 2024/0140912 A1The Florida State University Research Foundation, Inc.
- Composition for forming organic film, patterning process, and compound7 Sep 2023US 2023/0280655 A1Shin-Etsu Chemical Co., Ltd.
- Complexation of Pirfenidone with Polyphenolic Calixarene or Resorcin[4]arenes13 Apr 2023US 2023/0116697 A1University of Cincinnati
- Compositions comprising hyper harmonized hydroxyl modified fullerene substances29 Dec 2022US 2022/0409658 A1Fieldpoint (Cyprus) Limited
Most cited
By later US patents
- Therapeutic use of water-soluble fullerene derivatives37US 5,994,410 ANational Science Council · 1999
- Fullerene derivatives as free-radical scavengers32US 5,648,523 A1997
- Substituted pentacene semiconductors28US 6,864,396 B23M Innovative Properties Company · 2005
- Triptycene derivatives and their use for opto-electronics applications, in particular as electroluminescent materials23US 6,509,110 B1Axiva GmbH · 2003
- Polyacene compound and organic semiconductor thin film19US 8,236,998 B2Asahi Kasei Kabushiki Kaisha · 2012