C07C 49/553
Polycyclic
Official title: polycyclic
C07C49/553 (Polycyclic) appears on 74 US grants and 33 published applications in this corpus.
Search patents in C07C- Granted patents
- 74
- Published applications
- 33
- Assignees
- 34
- Inventors
- 153
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 1 |
| 2015 | 2 | 3 |
| 2016 | 2 | 3 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 1 | 4 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Quinone protected forms and conjugates4 Aug 2026US 12,697,392 B2Cambridge Enterprise Limited
- Bi- and tricyclic compounds for use as aroma chemicals25 Feb 2025US 12,234,206 B2BASF SE
- Method of producing EPD and analogues thereof25 Jun 2024US 12,018,006 B2
- Application of metal hydride/palladium compound system in preparation of 1,3-dicarbonyl compound in cascade reaction of electron-deficient alkene compound24 Oct 2023US 11,795,132 B2Soochow University
- Vetiver odorant18 Jan 2022US 11,225,629 B2Firmenich SA
- Quinone protected forms and conjugates29 May 2025US 2025/0170252 A1Cambridge Enterprise Limited
- Ester compound29 Feb 2024US 2024/0067597 A1Mitsui Chemicals, Inc.
- Bi- and tricyclic compounds for use as aroma chemicals3 Mar 2022US 2022/0064095 A1BASF SE
- Application of metal hydride/palladium compound system in preparation of 1,3-dicarbonyl compound in cascade reaction of electron-deficient alkene compound8 Jul 2021US 2021/0206707 A1Soochow University
- Method for preparing 1,3-dicarbonyl compound based on metal hydride/palladium compound system8 Jul 2021US 2021/0206708 A1Soochow University
Most cited
By later US patents
- Fullerene derivatives, methods of preparing them and their use72US 5,739,376 AHoechst Aktiengesellschaft · 1998
- Cyclic C.sub.6 ketones in perfumes23US 4,147,672 AFirmenich SA · 1979
- Carbon containing functional group substituted 4,5,6,7-tetrahydro-polyalkylated-4-indanes, isomers thereof, processes for preparing same and uses thereof19US 6,271,193 B1International Flavors & Fragrances Inc. · 2001
- Perfume systems19US 8,987,187 B2The Procter & Gamble Company · 2015
- Catalytic preparation of ketones from aldehydes14US 3,966,822 AChisso Corporation · 1976