C01C 3/20
Thiocyanic acid
Official title: Thiocyanic acid; Salts thereof {(C01C3/001 takes precedence)}
C01C3/20 (Thiocyanic acid) appears on 17 US grants and 2 published applications in this corpus.
Search patents in C01C- Granted patents
- 17
- Published applications
- 2
- Assignees
- 16
- Inventors
- 39
- Latest grant
- 1 Jan 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 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 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 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 | 1 |
| 2008 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Recovery of sodium thiocyanate from industrial process solution using nanofiltration technique1 Jan 2008US 7,314,606 B2Council of Scientific and Industrial Research
- Anti-caking agents for ammonium thiocyanate20 May 1997US 5,630,992 AAkzo Nobel N. V.
- Process for recovering thiocyanate6 Sep 1994US 5,344,569 AJapan Exlan Company Limited
- Process for the preparation of aqueous ammonium thiocyanate solutions25 Jun 1991US 5,026,534 AAkzo N. V.
- Stable thiocyanogen composition5 Dec 1989US 4,885,150 AThe Dow Chemical Company
- Method and plant for depleting sodium thiocyanate in washing liquors and for obtaining pure sodium thiocyanate4 Oct 2007US 2007/0231238 A1GEA Messo GmbH
- Recovery of sodium thiocyanate from industrial process solution using nanofiltration technique29 Sep 2005US 2005/0214192 A1Council of Scientific and Industrial Research
Most cited
By later US patents
- Reduction of sulfur concentration in physical scrubbing agents13US 4,155,988 ALinde Aktiengesellschaft · 1979
- Particulates and iron cyanide complex removal13US 4,624,837 AShell Oil Company · 1986
- Recovery of sodium thiocyanate from industrial process solution using nanofiltration technique5US 7,314,606 B2Council of Scientific and Industrial Research · 2008
- Process for recovering molybdenum-99 from a matrix containing neutron irradiated fissionable materials and fission products4US 4,093,697 AGesellschaft fur Kernforschung m.b.H. · 1978
- Method of preparing inorganic-alkali metal salts3US 4,216,191 AExxon Research & Engineering Co. · 1980