Issued Patents All Time
Showing 226–244 of 244 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927441 | High pressure nitrogen production cryogenic process | — | 1990-05-22 |
| 4914237 | Alkylation of toluenediamine and para-phenylenediamine with isobutylene in the presence of acidic, crystalline molecular sieves | — | 1990-04-03 |
| 4876377 | Alkylation of aromatic amines with olefins on partially dealuminated zeolites | Steven R. Auvil, Michel Deeba | 1989-10-24 |
| 4872893 | Process for the production of high pressure nitrogen | Steven R. Auvil | 1989-10-10 |
| 4834956 | Process for the production of high purity argon | Steven R. Auvil | 1989-05-30 |
| 4825354 | Method of file access in a distributed processing computer network | Ahmed K. Ezzat | 1989-04-25 |
| 4817392 | Process for the production of argon | Steven R. Auvil, Jung Soo Choe | 1989-04-04 |
| 4800488 | Method of propagating resource information in a computer network | Ahmed K. Ezzat | 1989-01-24 |
| 4717407 | Process for recovering helium from a multi-component gas stream | Jung Soo Choe, Steven R. Auvil | 1988-01-05 |
| 4715873 | Liquefied gases using an air recycle liquefier | Steven R. Auvil | 1987-12-29 |
| 4705548 | Liquid products using an air and a nitrogen recycle liquefier | Steven R. Auvil | 1987-11-10 |
| 4701187 | Process for separating components of a gas stream | Jung Soo Choe, Steven R. Auvil | 1987-10-20 |
| 4662918 | Air separation process | Thomas E. Cormier | 1987-05-05 |
| 4662917 | Process for the separation of air | Thomas E. Cormier | 1987-05-05 |
| 4662916 | Process for the separation of air | Thomas E. Cormier | 1987-05-05 |
| 4654063 | Process for recovering hydrogen from a multi-component gas stream | Steven R. Auvil | 1987-03-31 |
| 4595405 | Process for the generation of gaseous and/or liquid nitrogen | Steven R. Auvil | 1986-06-17 |
| 4543115 | Dual feed air pressure nitrogen generator cycle | Kenneth William Kovak | 1985-09-24 |
| 4464188 | Process and apparatus for the separation of air | Thomas E. Cormier | 1984-08-07 |