C07C 2603/04
Containing three rings
Official title: containing three rings
C07C2603/04 (Containing three rings) appears on 2,824 US grants and 2,614 published applications in this corpus.
Search patents in C07C- Granted patents
- 2,824
- Published applications
- 2,614
- Assignees
- 1,144
- Inventors
- 6,862
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 78 | 0 |
| 1977 | 57 | 0 |
| 1978 | 44 | 0 |
| 1979 | 17 | 0 |
| 1980 | 20 | 0 |
| 1981 | 20 | 0 |
| 1982 | 15 | 0 |
| 1983 | 14 | 0 |
| 1984 | 11 | 0 |
| 1985 | 20 | 0 |
| 1986 | 20 | 0 |
| 1987 | 15 | 0 |
| 1988 | 26 | 0 |
| 1989 | 33 | 0 |
| 1990 | 32 | 0 |
| 1991 | 51 | 0 |
| 1992 | 53 | 0 |
| 1993 | 46 | 0 |
| 1994 | 45 | 0 |
| 1995 | 60 | 0 |
| 1996 | 42 | 0 |
| 1997 | 55 | 0 |
| 1998 | 75 | 0 |
| 1999 | 50 | 0 |
| 2000 | 51 | 0 |
| 2001 | 62 | 24 |
| 2002 | 66 | 70 |
| 2003 | 69 | 98 |
| 2004 | 73 | 94 |
| 2005 | 48 | 82 |
| 2006 | 48 | 63 |
| 2007 | 48 | 87 |
| 2008 | 41 | 105 |
| 2009 | 51 | 82 |
| 2010 | 57 | 113 |
| 2011 | 66 | 112 |
| 2012 | 75 | 90 |
| 2013 | 66 | 93 |
| 2014 | 73 | 94 |
| 2015 | 108 | 110 |
| 2016 | 90 | 128 |
| 2017 | 83 | 121 |
| 2018 | 97 | 116 |
| 2019 | 114 | 120 |
| 2020 | 88 | 124 |
| 2021 | 86 | 110 |
| 2022 | 87 | 128 |
| 2023 | 85 | 156 |
| 2024 | 70 | 128 |
| 2025 | 67 | 96 |
| 2026 | 56 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07C 2603/06Containing at least one ring with less than six ring membersIndexing code1,822
- C07C 2603/22Containing only six-membered ringsIndexing code1,130
- C07C 2603/30Containing seven-membered ringsIndexing code201
- C07C 2603/36Containing eight-membered ringsIndexing code24
- C07C 2603/38Containing rings with at least nine membersIndexing code15
Recent patents
- Aromatic amine derivative, and organic electroluminescent element using same6 Oct 2026US 12,753,145 B2Idemitsu Kosan Co., Ltd.
- Methods for preparing (2S,3R,4R)-4,5-dihydroxyisoleucine derivative and intermediates thereof15 Sep 2026US 12,735,384 B2Inner Mongolia Duhe Innovation R & D Tech Co., Ltd
- Compound, coating composition comprising same, organic light-emitting device using same, and manufacturing method therefor8 Sep 2026US 12,729,312 B2LG Chem.Ltd.
- Organic electric element, display panel comprising the same and display device comprising the same8 Sep 2026US 12,733,395 B2LG Chem.Ltd.
- Processes for preparing conjugates of the IL-2 protein1 Sep 2026US 12,723,058 B2Merck Sharp & Dohme Corp.
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same8 Oct 2026US 2026/0314256 A1
- Free-radically polymerisable compound and composition1 Oct 2026US 2026/0297020 A1
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Light-emitting device, light-emitting apparatus, electronic apparatus, and lighting device17 Sep 2026US 2026/0282738 A1Semiconductor Energy Laboratory Co.Ltd.
Most cited
By later US patents
- Bioconjugation of macromolecules259US 6,737,236 B1Proligo LLC · 2004
- Spiro compounds and their use as electroluminescence materials179US 5,840,217 AHoechst Aktiengesellschaft · 1998
- 4-Aza-17.beta.-substituted-5.alpha.-androstan-3-one-reductase inhibitors159US 4,377,584 AMerck & Co., Inc. · 1983
- Sigma receptor ligands and the use thereof150US 6,057,371 AVirginia Commonwealth University · 2000
- Metallocenes and processes therefor and therewith148US 5,399,636 APhillips Petroleum Company · 1995