C07C 47/22
Acryaldehyde
Official title: Acryaldehyde; Methacryaldehyde
C07C47/22 (Acryaldehyde) appears on 27 US grants and 30 published applications in this corpus.
Search patents in C07C- Granted patents
- 27
- Published applications
- 30
- Assignees
- 17
- Inventors
- 81
- Latest grant
- 5 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 3 |
| 2018 | 4 | 5 |
| 2019 | 2 | 2 |
| 2020 | 10 | 7 |
| 2021 | 1 | 5 |
| 2022 | 4 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Continuous process for preparing methacrolein5 Mar 2024US 11,919,846 B2Rohm Co., Ltd.
- Process for producing optical molding materials10 Oct 2023US 11,780,944 B2Rohm Co., Ltd.
- Concrete flow improvers and water reducers20 Sep 2022US 11,447,579 B2Roehm GmbH
- Process for producing optical molding materials30 Aug 2022US 11,427,664 B2Rohm Co., Ltd.
- Process for preparing methacrolein2 Aug 2022US 11,401,229 B2Rohm and Haas Company
- Catalyst precursor, catalyst using same, production method for compound and production method for catalyst18 Jul 2024US 2024/0238768 A1Nippon Kayaku Kabushiki Kaisha
- Catalyst, Method for Producing Catalyst, and Method for Producing alpha,beta-Unsaturated Aldehyde, alpha,beta-Unsaturated Carboxylic Acid and alpha,beta-Unsaturated Carboxylic Acid Ester18 Jan 2024US 2024/0017247 A1Mitsubishi Chemical Corporation
- Catalyst, Method for Producing Catalyst, and Method for Producing alpha,beta-Unsaturated Aldehydes, alpha,beta-Unsaturated Carboxylic Acids and alpha,beta-Unsaturated Carboxylic Acid Esters11 Jan 2024US 2024/0009653 A1Mitsubishi Chemical Corporation
- Process for producing optical molding materials10 Nov 2022US 2022/0356282 A1Rohm Co., Ltd.
- Process for preparing methacrolein30 Dec 2021US 2021/0403404 A1Rohm and Haas Company
Most cited
By later US patents
- Synthesis of methacrylic acid from methacrolein-based alkyl methacrylate5US 10,479,754 B2Roehm GmbH · 2019
- Optimized process for preparing methacrylic acid4US 10,125,077 B2Evonik Röhm GmbH · 2018
- System for sulfide treatment in oilfield systems3US 10,730,818 B22020
- Preparation of 2-methylalk-2-enals3US 4,599,458 ABASF SE · 1986
- Oxide catalyst and method for producing the same, and methods for producing unsaturated aldehyde, diolefin, and unsaturated nitrile3US 9,364,817 B2Asahi Kasei Chemicals Corporation · 2016