C01C 3/0204
From formamide or from ammonium formate
Official title: {from formamide or from ammonium formate}
C01C3/0204 (From formamide or from ammonium formate) appears on 14 US grants and 14 published applications in this corpus.
Search patents in C01C- Granted patents
- 14
- Published applications
- 14
- Assignees
- 9
- Inventors
- 59
- Latest grant
- 9 Feb 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pressure-regulated multi-reactor system9 Feb 2021US 10,913,048 B2Aurotec GmbH
- Pressure-controlled reactor18 Jun 2019US 10,323,191 B2Aurotec GmbH
- Single chamber vaporizer and use thereof in chemical synthesis2 Feb 2016US 9,249,029 B2BASF SE
- Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide—direct heating19 May 2015US 9,034,293 B2BASF SE
- High-yield production of organic nitriles25 Jun 2013US 8,471,052 B2Orochem Technologies Inc.
- Method for synthesizing hydrocyanic acid from formamide - catalyst25 Feb 2016US 2016/0052793 A1BASF SE
- Process for the synthesis of hydrocyanic acid from formamide packed after-reactor14 Jan 2016US 2016/0009565 A1BASF SE
- Pressure-controlled reactor7 May 2015US 2015/0122802 A1Aurotec GmbH
- Pressure-regulated multi-reactor system12 Feb 2015US 2015/0044122 A1Aurotec GmbH
- Single-chamber vaporizer and use thereof in chemical synthesis28 Jul 2011US 2011/0182798 A1BASF SE
Most cited
By later US patents
- Cleavage of formamide to give hydrocyanic acid and water8US 4,693,877 ABASF SE · 1987
- Process for treating gases in the ammonia synthesis4US 4,055,627 A1977
- Process for the production of hydrogen cyanide3US 4,869,889 AW. R. Grace & Co.-Conn. · 1989
- Method for converting amides to nitriles and nitriles to amides1US 5,449,808 AThe Standard Oil Company · 1995
- Hydrocyanic acid consisting of formamide1US 7,294,326 B2BASF SE · 2007