C07D 455/03
Containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic
Official title: containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic ring, e.g. protoberberine; Alkylenedioxy derivatives of dibenzo [a, g] quinolizines, e.g. berberine
C07D455/03 (Containing quinolizine ring systems directly condensed with at least one six-membered carbocyclic) appears on 396 US grants and 328 published applications in this corpus.
Search patents in C07D- Granted patents
- 396
- Published applications
- 328
- Assignees
- 222
- Inventors
- 1,075
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 14 | 0 |
| 1981 | 8 | 0 |
| 1982 | 10 | 0 |
| 1983 | 8 | 0 |
| 1984 | 13 | 0 |
| 1985 | 13 | 0 |
| 1986 | 12 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 15 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 14 |
| 2003 | 7 | 23 |
| 2004 | 13 | 9 |
| 2005 | 10 | 9 |
| 2006 | 7 | 5 |
| 2007 | 5 | 5 |
| 2008 | 4 | 10 |
| 2009 | 1 | 7 |
| 2010 | 3 | 14 |
| 2011 | 13 | 5 |
| 2012 | 5 | 7 |
| 2013 | 7 | 11 |
| 2014 | 7 | 15 |
| 2015 | 5 | 18 |
| 2016 | 15 | 19 |
| 2017 | 8 | 20 |
| 2018 | 12 | 15 |
| 2019 | 13 | 19 |
| 2020 | 12 | 29 |
| 2021 | 15 | 17 |
| 2022 | 10 | 11 |
| 2023 | 11 | 14 |
| 2024 | 6 | 10 |
| 2025 | 4 | 15 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluorescent dye, preparation method and uses thereof12 May 2026US 12,625,141 B2Fluorescence Diagnosis (Shanghai) Biotech Company
- Processes for the preparation of multicomponent crystalline forms of active pharmaceutical ingredients using solvent vapour24 Mar 2026US 12,583,860 B2Apotex Inc.
- VMAT2 inhibitor and preparation method therefor and application thereof3 Mar 2026US 12,565,495 B2Luye Innomind Pharma Shijiazhuang Co., Ltd.
- Nitrogen-containing heterocyclic compound and use thereof23 Dec 2025US 12,502,386 B2Shanghai Shijiang Biotechnology Co., Ltd
- Process for the manufacture of (2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-(((4aR,10aR)-7-hydroxy-1-propyl-1,2,3,4,4a,5,10,10a-octahydrobenzo[g]quinolin-6-yl)oxy)tetrahydro-2H-pyran-2-carboxylic acid26 Aug 2025US 12,398,169 B2H. Lundbeck A.S.
- Organic electroluminescent materials and devices8 Oct 2026US 2026/0314258 A1Universal Display Corporation
- Bulky and small-steric-hindrance ligand and use thereof17 Sep 2026US 2026/0273518 A1Dg Hc Optical Co., Ltd
- Berberine tauroursodeoxycholate compositions and methods thereof30 Jul 2026US 2026/0217699 A1
- 8-hydroxyquinoline compound and use thereof16 Apr 2026US 2026/0103444 A1Osaka University
- Vmat2 inhibitor and preparation method therefor and application thereof2 Apr 2026US 2026/0091029 A1Luye Innomind Pharma Shijiazhuang Co., Ltd.
Most cited
By later US patents
- Pyrido[2,1-A]Isoquinoline derivatives112US 6,727,261 B2Hoffman-La Roche Inc. · 2004
- Composite useful in photolithography72US 5,108,874 AMicroSi, Inc. · 1992
- Radiation sensitive plates65US 5,130,227 AVickers, Incorporated · 1992
- Derivatives of aryl ketones based on 9,10-dihydro-9,10-ethanoanthracene and p-dialkyl-aminoaryl aldehydes as visible sensitizers for photopolymerizable compositions62US 4,268,667 AE. I. Du Pont de Nemours and Company · 1981
- Derivatives of aryl ketones as visible sensitizers of photopolymerizable compositions59US 4,351,893 AE. I. Du Pont de Nemours and Company · 1982