C07D 311/86
Oxygen atoms
Official title: Oxygen atoms, e.g. xanthones
C07D311/86 (Oxygen atoms) appears on 154 US grants and 104 published applications in this corpus.
Search patents in C07D- Granted patents
- 154
- Published applications
- 104
- Assignees
- 109
- Inventors
- 465
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 3 |
| 2003 | 6 | 3 |
| 2004 | 2 | 3 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 3 | 3 |
| 2008 | 3 | 5 |
| 2009 | 0 | 2 |
| 2010 | 4 | 5 |
| 2011 | 3 | 12 |
| 2012 | 3 | 1 |
| 2013 | 4 | 2 |
| 2014 | 2 | 8 |
| 2015 | 3 | 5 |
| 2016 | 3 | 8 |
| 2017 | 6 | 1 |
| 2018 | 3 | 6 |
| 2019 | 6 | 9 |
| 2020 | 3 | 4 |
| 2021 | 4 | 2 |
| 2022 | 2 | 4 |
| 2023 | 4 | 6 |
| 2024 | 2 | 4 |
| 2025 | 1 | 0 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Xanthene derivatives, mixtures comprising same, manufacturing method and corresponding uses2 Jun 2026US 12,643,873 B2Arkema France
- Method for producing peptide compound, protective group-forming reagent, and condensed polycyclic compound18 Feb 2025US 12,227,542 B2FUJIFILM Corporation
- Energy-sensitive composition, cured product, and forming method of patterned cured product24 Sep 2024US 12,099,297 B2Tokyo Ohka Kogyo.Co., Ltd.
- Photobase generator, compound, photoreactive composition, and reaction product16 Jan 2024US 11,873,354 B2Tokyo University of Science Foundation
- Continuous isolation of cannabidiol and conversion of cannabidiol to delta 8-tetrahydrocannabinol and delta 9-tetrahydrocannabinol26 Dec 2023US 11,851,414 B2Cleen Technology Inc.
- Photobases13 Aug 2026US 2026/0234174 A1Technische UniversitäT Wien
- Pharmaceutical composition for ameliorating malignant diseases16 Jul 2026US 2026/0200903 A1Kinki University
- Pharmaceutical composition for ameliorating malignant diseases9 Jul 2026US 2026/0193240 A1Kinki University
- Onium salt, chemically amplified resist composition, and patterning process14 Nov 2024US 2024/0377733 A1Shin-Etsu Chemical Co., Ltd.
- Organic compound and organic light-emitting device18 Jul 2024US 2024/0244859 A1
Most cited
By later US patents
- N-Heterocyclic-9-xanthenylamines84US 4,005,208 ASmithKline Corporation · 1977
- Radiation sensitive plates65US 5,130,227 AVickers, Incorporated · 1992
- Sensitizer for tumor treatment58US 6,572,839 B2Hitachi, Ltd. · 2003
- Leukotriene B.sub.4 antagonists45US 5,324,743 AEli Lilly and Company · 1994
- Tetrazolyl substituted tricyclic compounds and pharmacological compositions thereof36US 4,902,701 ABurroughs Welcome Co. · 1990