Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5931022 | Air purification process with thermal regeneration | Shuguang Deng, Ravi Kumar | 1999-08-03 |
| 5914455 | Air purification process | James K. Tseng | 1999-06-22 |
| 5906675 | Air purification process | James K. Tseng | 1999-05-25 |
| 5728198 | Process and apparatus for gas purification | Divyanshu R. Acharya, James K. Tseng | 1998-03-17 |
| 5601634 | Purification of fluids by adsorption | Sidney S. Stern | 1997-02-11 |
| 5551257 | Production of ultrahigh purity nitrogen | — | 1996-09-03 |
| 5425240 | Purification of oxygen by cryogenic adsorption | Alberto I. LaCava | 1995-06-20 |
| 5232474 | Pre-purification of air for separation | — | 1993-08-03 |
| 5204075 | Process for the purification of the inert gases | Satish S. Tamhankar, Alberto I. LaCava | 1993-04-20 |
| 5202096 | Apparatus for low temperature purification of gases | — | 1993-04-13 |
| 5181942 | Continuous method for removing oil vapor from feed gases containing water vapor | — | 1993-01-26 |
| 5156657 | Process for pre-purification of air for separation | Alberto I. LaCava | 1992-10-20 |
| 5110569 | Low temperature purification of gases | — | 1992-05-05 |
| 5090973 | PSA employing high purity purging | — | 1992-02-25 |
| 4861361 | Argon and nitrogen coproduction process | Alberto I. LaCava, Mark J. Andrecovich, Donald L. MacLean | 1989-08-29 |
| 4765804 | PSA process and apparatus employing gaseous diffusion barriers | Andrew Lloyd-Williams, Donald L. MacLean, Steven L. Lerner | 1988-08-23 |
| 4732580 | Argon and nitrogen coproduction process | Steven L. Lerner, Robert A. Mostello, Donald L. MacLean | 1988-03-22 |