Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10357405 | Pressure device | Boris Goldman, Eric Kitain, Robert Koorn, Vladimir Koltchine | 2019-07-23 |
| 5234472 | Separation of gas mixtures including hydrogen | Ramachandran Krishnamurthy, Yagya Shukla, Alan G. Stokley | 1993-08-10 |
| 5112590 | Separation of gas mixtures including hydrogen | Ramachandran Krishnamurthy, Yagya Shukla, Alan G. Stokley | 1992-05-12 |
| 4765804 | PSA process and apparatus employing gaseous diffusion barriers | Andrew Lloyd-Williams, Donald L. MacLean, Ravi Jain | 1988-08-23 |
| 4758252 | Hydrostatic method employing PSA vent gas pressure for vacuum regeneration | Ramachandran Krishnamurthy, Donald L. MacLean | 1988-07-19 |
| 4752311 | Argon recovery from ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Donald L. MacLean, Ramachandran Krishnamurthy | 1988-06-21 |
| 4750925 | Argon recovery from hydrogen depleted ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Donald L. MacLean, Ramachandran Krishnamurthy | 1988-06-14 |
| 4732580 | Argon and nitrogen coproduction process | Ravi Jain, Robert A. Mostello, Donald L. MacLean | 1988-03-22 |
| 4689062 | Argon recovery from ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Donald L. MacLean, Ramachandran Krishnamurthy | 1987-08-25 |
| 4687498 | Argon recovery from hydrogen depleted ammonia plant purge gas utilizing a combination of cryogenic and non-cryogenic separating means | Donald L. MacLean, Ramachandran Krishnamurthy | 1987-08-18 |