B01J 2231/343
To prepare cyanhydrines
Official title: to prepare cyanhydrines, e.g. by adding HCN or TMSCN
B01J2231/343 (To prepare cyanhydrines) appears on 16 US grants and 7 published applications in this corpus.
Search patents in B01J- Granted patents
- 16
- Published applications
- 7
- Assignees
- 11
- Inventors
- 31
- Latest grant
- 25 Jun 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Perfluoroalkyl group-containing bismuth compounds as lewis acid catalysts25 Jun 2019US 10,328,423 B2Merck Patent GmbH
- Extraction solvent control for reducing stable emulsions13 Jun 2017US 9,676,800 B2Invista North America S A R L
- Titanium compound and process for producing optically active cyanohydrins8 Jun 2010US 7,732,544 B2Mitsui Chemicals, Inc.
- Method for the recycling of a Lewis acid1 Aug 2006US 7,084,294 B2BASF SE
- Polymer-supported Lewis acid catalyst12 Jul 2005US 6,916,761 B1Japan Science and Technology Corporation
- Perfluoroalkyl group-containing bismuth compounds as lewis acid catalysts27 Sep 2018US 2018/0272325 A1Merck Patent GmbH
- Extraction solvent control for reducing stable emulsions24 Mar 2016US 2016/0083406 A1Invista North America S A R L
- Titanium Compound and Process for Producing Optically Active Cyanohydrins15 Nov 2007US 2007/0265463 A1Mitsui Chemicals, Inc.
- Method for the recycling of a lewis acid10 Nov 2005US 2005/0247624 A1BASF SE
- Purified sulfonated organophosphorus compounds and catalysis of organic reactions therewith30 Oct 2003US 2003/0204109 A1Resin Intermediates
Most cited
By later US patents
- Method for the recycling of a Lewis acid26US 7,084,294 B2BASF SE · 2006
- Production of nitriles via hydrocyanation of ethylenically unsaturated organic compounds17US 6,469,194 B2Rhodia Fiber & Resin Intermediates · 2002
- Product recovery13US 4,080,374 AE. I. Du Pont de Nemours and Company · 1978
- Process for activation or regeneration of nickel catalyst11US 5,143,873 AE. I. Du Pont de Nemours and Company · 1992
- Cyanohydrination catalyst5US 4,569,793 AShell Oil Company · 1986