C01B 17/32
Hydrosulfides of sodium or potassium
C01B17/32 (Hydrosulfides of sodium or potassium) appears on 10 US grants and 10 published applications in this corpus.
Search patents in C01B- Granted patents
- 10
- Published applications
- 10
- Assignees
- 12
- Inventors
- 37
- Latest grant
- 8 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for separating particles containing alkali metal salts from liquid hydrocarbons8 Oct 2019US 10,435,631 B2Enlighten Innovations Inc.
- Heavy oil conversion process with in-situ potassium sulfide generation18 Mar 2014US 8,673,132 B2ExxonMobil Research and Engineering Company
- Reactor for synthesizing hydrogen sulfide, apparatus for producing hydrogen sulfide, apparatus for producing sodium hydrogen sulfide, method for producing hydrogen sulfide, and method for producing sodium hydrogen sulfide8 Oct 2013US 8,551,442 B2Jgc Corporation
- Regeneration of alkali metal reagent26 Mar 2013US 8,404,106 B2ExxonMobil Research and Engineering Company
- Separation of ammonia from sulfur compounds7 Oct 2008US 7,431,902 B2Sundance Resources Inc.
- Lithium sulfide production method18 May 2023US 2023/0150818 A1Solid Power Operating, Inc.
- Lithium sulfide production method18 May 2023US 2023/0150819 A1Solid Power Operating, Inc.
- Lithium sulfide production method18 May 2023US 2023/0150828 A1Solid Power Operating, Inc.
- Process for separating particles containing alkali metal salts from liquid hydrocarbons5 Apr 2018US 2018/0094198 A1Enlighten Innovations Inc.
- Method for recovering alkali metal from hydrocarbon feedstocks treated with alkali metal7 Sep 2017US 2017/0253816 A1Ceramatec, Inc.
Most cited
By later US patents
- Two-phase contact reactor6US 3,969,081 ALion Oil Company · 1976
- Production of sodium hydrosulfide4US 4,439,411 AFMC Corporation · 1984
- Preparation of hydrosulfides3US 4,156,656 AThe United States of America as represented by the Secretary of the Interior · 1979
- Process for the conversion of calcium sulfide3US 5,738,758 AUniversity of New Brunswick · 1998
- Process for separating particles containing alkali metal salts from liquid hydrocarbons1US 10,435,631 B2Enlighten Innovations Inc. · 2019