Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849537 | Process for the production of nitriles | Ramakrishnan Ramachandran, Donald P. Satchell, Jr. | 1989-07-18 |
| 4816039 | PSA multicomponent separation utilizing tank equalization | Ramachandran Krishnamurthy, Steve L. Lerner | 1989-03-28 |
| 4765804 | PSA process and apparatus employing gaseous diffusion barriers | Andrew Lloyd-Williams, Ravi Jain, Steven L. Lerner | 1988-08-23 |
| 4758252 | Hydrostatic method employing PSA vent gas pressure for vacuum regeneration | Steven L. Lerner, Ramachandran Krishnamurthy | 1988-07-19 |
| 4752311 | Argon recovery from ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Ramachandran Krishnamurthy, Steven L. Lerner | 1988-06-21 |
| 4750925 | Argon recovery from hydrogen depleted ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Ramachandran Krishnamurthy, Steven L. Lerner | 1988-06-14 |
| 4732580 | Argon and nitrogen coproduction process | Ravi Jain, Steven L. Lerner, Robert A. Mostello | 1988-03-22 |
| 4689062 | Argon recovery from ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Ramachandran Krishnamurthy, Steven L. Lerner | 1987-08-25 |
| 4687498 | Argon recovery from hydrogen depleted ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Ramachandran Krishnamurthy, Steven L. Lerner | 1987-08-18 |
| 4362613 | Hydrocracking processes having an enhanced efficiency of hydrogen utilization | — | 1982-12-07 |
| 4315819 | Hollow fiber permeator apparatus | Duane King, Billy J. Harris, Tommy E. Graham | 1982-02-16 |