Y10S 62/931
Recovery of hydrogen
Y10S62/931 (Recovery of hydrogen) appears on 85 US grants and 7 published applications in this corpus.
Search patents in Y10S- Granted patents
- 85
- Published applications
- 7
- Assignees
- 31
- Inventors
- 141
- Latest grant
- 21 Oct 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 4 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Recovery and purification of ethylene21 Oct 2008US 7,437,891 B2Ineos USA LLC
- Method and installation for separating a mixture of hydrogen and carbon monoxide3 Jun 2008US 7,380,413 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude
- Plant and method for fractionating and purifying synthesis gas18 Sep 2007US 7,269,972 B2Lurgi GmbH
- Light gas component separation from a carbon dioxide mixture10 Apr 2007US 7,201,019 B2Praxair Technology, Inc.
- Recovery of hydrogen from refinery and petrochemical light ends streams2 May 2006US 7,036,337 B2Wylie Companies, INC
- Recovery and purification of ethylene22 Jun 2006US 2006/0135840 A1Ineos USA LLC
- Light gas component separation from a carbon dioxide mixture25 May 2006US 2006/0107691 A1Praxair Technology, Inc.
- Method and installation for separating a mixture of hydrogen and carbon monoxide20 Oct 2005US 2005/0232854 A1L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude
- Plant unit and method for decomposing and purifying synthesis gas14 Apr 2005US 2005/0076672 A1Lurgi GmbH
- Recovery of hydrogen from refinery and petrochemical light ends streams3 Mar 2005US 2005/0047995 A1Wylie Companies, INC
Most cited
By later US patents
- Argon recovery from hydrogen depleted ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means42US 4,687,498 AThe BOC Group, Inc. · 1987
- Separation of hydrogen-hydrocarbon gas mixtures using closed-loop gas expander refrigeration36US 6,560,989 B1Air Products and Chemicals, Inc. · 2003
- Dehydrocyclodimerization process35US 4,548,619 AUop LLC · 1985
- Membrane separation process for cracked gases35US 5,082,481 ALummus Crest, Inc. · 1992
- Low temperature refrigeration process for helium or hydrogen mixtures using mixed refrigerant31US 3,992,167 AUnion Carbide Corporation · 1976