Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690702 | Method and apparatus for cryogenic fractionation of a gaseous feed | Henri Paradowski, Herve B. Parfait | 1987-09-01 |
| 4689063 | Process of fractionating gas feeds and apparatus for carrying out the said process | Henri Paradowski, Herve B. Parfait, Alain Vasseur | 1987-08-25 |
| 4308243 | Method for treating residue gases proceeding from sulphur removing units and plants for carrying out the said method | Christian Legrand | 1981-12-29 |