F25J 2230/58
The fluid being argon or crude argon
Official title: the fluid being argon or crude argon
F25J2230/58 (The fluid being argon or crude argon) appears on 6 US grants and 3 published applications in this corpus.
Search patents in F25J- Granted patents
- 6
- Published applications
- 3
- Assignees
- 5
- Inventors
- 25
- Latest grant
- 18 Jul 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for argon production via cold pressure swing adsorption18 Jul 2017US 9,708,188 B1Air Products and Chemicals, Inc.
- System and method for producing high purity argon5 Mar 2002US 6,351,971 B1Praxair Technology, Inc.
- Argon separation method and apparatus therefor28 Jul 1998US 5,784,899 ANippon Sanso Corporation
- Process for removing oxygen from crude argon30 Jul 1991US 5,035,726 AAir Products and Chemicals, Inc.
- Production of oxygen-lean argon from air19 Feb 1991US 4,994,098 AAir Products and Chemicals, Inc.
Most cited
By later US patents
- Process for removing oxygen from crude argon50US 5,035,726 AAir Products and Chemicals, Inc. · 1991
- Purification of crude argon47US 4,935,044 ALinde Aktiengesellschaft · 1990
- System and method for producing high purity argon15US 6,351,971 B1Praxair Technology, Inc. · 2002
- Production of oxygen-lean argon from air12US 4,994,098 AAir Products and Chemicals, Inc. · 1991
- Argon separation method and apparatus therefor6US 5,784,899 ANippon Sanso Corporation · 1998