C07C 253/28
Containing six-membered aromatic rings
Official title: containing six-membered aromatic rings, e.g. styrene
C07C253/28 (Containing six-membered aromatic rings) appears on 67 US grants and 24 published applications in this corpus.
Search patents in C07C- Granted patents
- 67
- Published applications
- 24
- Assignees
- 28
- Inventors
- 167
- Latest grant
- 13 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 4 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing aromatic nitrile by ammoxidation reaction13 Aug 2024US 12,060,311 B2Mitsubishi Gas Chemical Company, Inc.
- Manufacturing method of nitrile compound24 Oct 2023US 11,795,137 B2Mitsubishi Gas Chemical Company, Inc.
- Off-gas incinerator control5 Sep 2023US 11,745,157 B2Ineos Europe AG
- Fluidized-bed catalyst suitable for the production of halogenated aromatic nitriles, its preparation and application thereof19 Jan 2021US 10,894,247 B2China Petroleum & Chemical Corporation
- Method and apparatus for producing dicyanobenzene21 Nov 2017US 9,822,062 B2Mitsubishi Gas Chemical Company, Inc.
- Method for producing purified phthalonitrile and method for purifying phthalonitrile13 Apr 2023US 2023/0111802 A1Mitsubishi Gas Chemical Company, Inc.
- Manufacturing method of nitrile compound5 May 2022US 2022/0135515 A1Mitsubishi Gas Chemical Company, Inc.
- Method for producing aromatic nitrile by ammoxidation reaction15 Apr 2021US 2021/0107864 A1Mitsubishi Gas Chemical Company, Inc.
- Fluidized-bed catalyst suitable for the production of halogenated aromatic nitriles, its preparation and application thereof7 May 2020US 2020/0139356 A1China Petroleum & Chemical Corporation
- Off-gas incinerator control19 Sep 2019US 2019/0282991 A1Ineos Europe AG
Most cited
By later US patents
- Oxidative reactions using membranes that selectively conduct oxygen65US 6,730,808 B2BASF SE · 2004
- Catalyst for the conversion of unsaturated hydrocarbons into diolefins or unsaturated aldehydes and nitriles, and process for preparing the same39US 4,388,223 AEuteco Impianti S.p.A. · 1983
- Catalysis using pillared hydrotalcites29US 4,843,168 AAmoco Corporation · 1989
- Method for producing aromatic nitriles18US 4,336,205 ATakeda Chemical Industries, Ltd. · 1982
- Ammoxidation process14US 4,070,393 ASun Ventures, Inc. · 1978