C07C 2603/00
Systems containing at least three condensed rings
C07C2603/00 (Systems containing at least three condensed rings) appears on 5,709 US grants and 5,319 published applications in this corpus.
Search patents in C07C- Granted patents
- 5,709
- Published applications
- 5,319
- Assignees
- 2,015
- Inventors
- 13,090
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 99 | 0 |
| 1977 | 78 | 0 |
| 1978 | 63 | 0 |
| 1979 | 31 | 0 |
| 1980 | 35 | 0 |
| 1981 | 46 | 0 |
| 1982 | 34 | 0 |
| 1983 | 21 | 0 |
| 1984 | 18 | 0 |
| 1985 | 27 | 0 |
| 1986 | 27 | 0 |
| 1987 | 35 | 0 |
| 1988 | 41 | 0 |
| 1989 | 57 | 0 |
| 1990 | 56 | 0 |
| 1991 | 91 | 0 |
| 1992 | 92 | 0 |
| 1993 | 105 | 0 |
| 1994 | 100 | 0 |
| 1995 | 139 | 0 |
| 1996 | 104 | 0 |
| 1997 | 123 | 0 |
| 1998 | 151 | 0 |
| 1999 | 91 | 0 |
| 2000 | 102 | 0 |
| 2001 | 117 | 38 |
| 2002 | 151 | 146 |
| 2003 | 122 | 203 |
| 2004 | 142 | 191 |
| 2005 | 101 | 195 |
| 2006 | 124 | 172 |
| 2007 | 107 | 173 |
| 2008 | 100 | 220 |
| 2009 | 112 | 208 |
| 2010 | 131 | 265 |
| 2011 | 148 | 253 |
| 2012 | 176 | 207 |
| 2013 | 186 | 233 |
| 2014 | 203 | 215 |
| 2015 | 234 | 241 |
| 2016 | 202 | 264 |
| 2017 | 204 | 246 |
| 2018 | 216 | 205 |
| 2019 | 203 | 238 |
| 2020 | 160 | 213 |
| 2021 | 150 | 208 |
| 2022 | 150 | 233 |
| 2023 | 147 | 240 |
| 2024 | 136 | 219 |
| 2025 | 120 | 170 |
| 2026 | 101 | 123 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aromatic amine derivative, and organic electroluminescent element using same6 Oct 2026US 12,753,145 B2Idemitsu Kosan Co., Ltd.
- Nanomaterials comprising acetals6 Oct 2026US 12,753,147 B2Beam Therapeutics Inc.
- Tetracycline derivatives for treating neurodegenerative or neuroinflammatory diseases29 Sep 2026US 12,746,247 B2Institut Du Cerveau Et De La Moelle Epiniere
- 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, and composition for forming hole transporting layer for perovskite solar cells15 Sep 2026US 12,735,395 B2Tokyo Chemical Industry Co., Ltd.
- Compound, composition, method for expressing sensitizing effect and production method8 Oct 2026US 2026/0308100 A1Mitsubishi Gas Chemical Company, Inc.
- 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
Most cited
By later US patents
- Novel vinyl carbonate and vinyl carbamate contact lens material monomers474US 5,070,215 ABausch & Lomb Incorporated · 1991
- Bioconjugation of macromolecules259US 6,737,236 B1Proligo LLC · 2004
- Vinyl carbonate and vinyl carbamate contact lens material monomers193US 5,610,252 ABausch & Lomb Incorporated · 1997
- Method for preparation of taxol using an oxazinone181US 5,015,744 AFlorida State University · 1991
- Spiro compounds and their use as electroluminescence materials179US 5,840,217 AHoechst Aktiengesellschaft · 1998