C07C 5/29
Changing the number of carbon atoms in a ring while maintaining the
Official title: changing the number of carbon atoms in a ring while maintaining the number of rings
C07C5/29 (Changing the number of carbon atoms in a ring while maintaining the) appears on 55 US grants and 42 published applications in this corpus.
Search patents in C07C- Granted patents
- 55
- Published applications
- 42
- Assignees
- 26
- Inventors
- 133
- Latest grant
- 27 Oct 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 1 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 5 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 12 |
| 2015 | 1 | 3 |
| 2016 | 1 | 0 |
| 2017 | 4 | 1 |
| 2018 | 4 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Chemical conversion process in a dispersion27 Oct 2020US 10,815,168 B2BASF SE
- High density renewable fuels from zizaenes18 Jun 2019US 10,323,198 B1The United States of America as represented by the Secretary of the Navy
- Process for preparing cyclohexane with starting materials originating from a steamcracking process25 Sep 2018US 10,081,580 B2BASF SE
- High density cyclic fuels derived from linear sesquiterpenes8 May 2018US 9,963,651 B1The United States of America as represented by the Secretary of the Navy
- Renewable diamondoid fuels27 Mar 2018US 9,926,505 B1The United States of America as represented by the Secretary of the Navy
- Process for producing adamantane18 Dec 2025US 2025/0382245 A1China Petroleum & Chemical Corporation
- Fuel Additive16 May 2024US 2024/0158317 A1
- Method of methyl cyclopentene production from cyclohexene over zeolite-based catalyst structure24 Feb 2022US 2022/0055971 A1Kara Technologies Inc.
- Process for preparing cyclohexane from benzene and methylcyclopentane with upstream benzene hydrogenation4 May 2017US 2017/0121240 A1BASF SE
- Method for Producing Adamantane3 Dec 2015US 2015/0344385 A1CPC Corporation, Taiwan
Most cited
By later US patents
- Solid strong acid catalyst process for the production of the same and use thereof40US 5,036,035 AResearch Association for Utilization of Light Oil · 1991
- Process for isomerizing hydrocarbons18US 5,120,898 AResearch Association for Utilization of Light Oil · 1992
- Conversion of hydrocarbons15US 4,085,156 AMobil Oil Corporation · 1978
- Conversion of hydrocarbons15US 4,157,950 AMobil Oil Corporation · 1979
- Boron, aluminum and gallium perfluoro alkanesulfonate and resinsulfonate catalysts14US 4,721,559 A1988