C07C 63/333
4,4' - diphenyldicarboxylic acids
Official title: 4,4' - Diphenyldicarboxylic acids
C07C63/333 (4,4' - diphenyldicarboxylic acids) appears on 10 US grants and 12 published applications in this corpus.
Search patents in C07C- Granted patents
- 10
- Published applications
- 12
- Assignees
- 10
- Inventors
- 38
- Latest grant
- 6 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separation method for halogenated unsaturated carbon compound6 Jul 2021US 11,053,180 B2Daikin Industries, Ltd.
- Separation method for halogenated unsaturated carbon compound19 May 2020US 10,654,775 B2Daikin Industries, Ltd.
- Microporous coordination complex and method of making the same31 May 2016US 9,353,129 B2The Regents of the University of Michigan
- Method for preparing porous organic-inorganic hybrid materials3 Nov 2015US 9,175,025 B2Korea Research Institute of Chemical Technology
- Nonaqueous secondary battery electrode, nonaqueous secondary battery including the same, and assembled battery5 Aug 2014US 8,795,893 B2Kabushiki Kaisha Toyota Chuo Kenkyusho
- Nanoscale geometrical quantity certified reference material, and preparation method and use thereof2 Jul 2026US 2026/0184560 A1National Institute of Metrology, China
- Preparation and Use of Biphenyldicarboxylic Acids19 Nov 2020US 2020/0361845 A1
- Separation method for halogenated unsaturated carbon compound30 Jul 2020US 2020/0239389 A1Daikin Industries, Ltd.
- Separation method for halogenated unsaturated carbon compound9 Aug 2018US 2018/0222823 A1Daikin Industries, Ltd.
- Microporous coordination complex and method of making the same21 Aug 2014US 2014/0234624 A1The Regents of the University of Michigan
Most cited
By later US patents
- Polyesters of methyl-substituted polyphenylcarboxylic acids5US 4,154,922 AStandard Oil Company (Indiana) · 1979
- Tetramethylbiphenylcarboxylic acids and derivatives thereof1US 4,582,925 AStandard Oil Company (Indiana) · 1986
- Method for preparing porous organic-inorganic hybrid materials1US 9,175,025 B2Korea Research Institute of Chemical Technology · 2015
- Microporous coordination complex and method of making the same1US 9,353,129 B2The Regents of the University of Michigan · 2016