Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7862645 | Removal of gaseous contaminants from argon | Roger Dean Whitley, Edward Landis Weist, Jr., Annemarie Ott Weist | 2011-01-04 |
| 7128776 | Periodic high temperature regeneration of thermal swing adsorption systems | William P. Schmidt, Mohammad Ali Kalbassi, Timothy Christopher Golden | 2006-10-31 |
| 6758463 | Liquid distributor internal baffling | Ian Robert Zone, Raymond Elliott Sacks, Kenneth William Kovak, Mohammad Ali Kalbassi | 2004-07-06 |
| 6276168 | Purification of nitrogen trifluoride by continuous cryogenic distillation | Zbigniew Tadeusz Fidkowski, John Frederick Cirucci, Rakesh Agrawal, Shyam Ramchand Suchdeo | 2001-08-21 |
| 5531809 | Pretreatment layer for CO-VSA | Timothy Christopher Golden, Paul Anthony Webley, Wilbur C. Katz | 1996-07-02 |
| 5306331 | Process for cooling the feed gas to gas separation systems | Rodney John Allam, Paul Anthony Webley, Philip John Young | 1994-04-26 |
| 5259869 | Use of membrane separation to dry gas streams containing water vapor | Jung Soo Choe, Lyndon J. Kellogg, Jr. | 1993-11-09 |
| 5240474 | Air separation by pressure swing adsorption with a high capacity carbon molecular sieve | Joan M. Schork, Rajagopalan Srinivasan | 1993-08-31 |
| 5207906 | Membrane separation module | James C. Sorensen, Daniel T. Diggs | 1993-05-04 |
| 5026912 | Alkylation of aromatic amines over thermally pretreated zeolites | Rakesh Agrawal | 1991-06-25 |
| 4947649 | Cryogenic process for producing low-purity oxygen | Rakesh Agrawal | 1990-08-14 |
| 4883519 | Process for the production of high pressure nitrogen with split reboil-condensing duty | Rakesh Agrawa, Keith Wilson | 1989-11-28 |
| 4876377 | Alkylation of aromatic amines with olefins on partially dealuminated zeolites | Rakesh Agrawal, Michel Deeba | 1989-10-24 |
| 4872893 | Process for the production of high pressure nitrogen | Rakesh Agrawal | 1989-10-10 |
| 4834956 | Process for the production of high purity argon | Rakesh Agrawal | 1989-05-30 |
| 4817392 | Process for the production of argon | Rakesh Agrawal, Jung Soo Choe | 1989-04-04 |
| 4717407 | Process for recovering helium from a multi-component gas stream | Jung Soo Choe, Rakesh Agrawal | 1988-01-05 |
| 4715873 | Liquefied gases using an air recycle liquefier | Rakesh Agrawal | 1987-12-29 |
| 4705548 | Liquid products using an air and a nitrogen recycle liquefier | Rakesh Agrawal | 1987-11-10 |
| 4701187 | Process for separating components of a gas stream | Jung Soo Choe, Rakesh Agrawal | 1987-10-20 |
| 4654063 | Process for recovering hydrogen from a multi-component gas stream | Rakesh Agrawal | 1987-03-31 |
| 4595405 | Process for the generation of gaseous and/or liquid nitrogen | Rakesh Agrawal | 1986-06-17 |
| 4560775 | Production of lactone in molten salt electrolysis | James P. Coleman, Richard C. Hallcher, Dudley E. McMackins, Charles R. Penquite | 1985-12-24 |
| 4503260 | Glycolaldehyde process | Patrick Mills | 1985-03-05 |
| 4457904 | Hydrogen cyanide process | James W. Gambell | 1984-07-03 |