Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754008 | Device for creating a beam of adjustable-energy ions particularly for sequential vacuum treatment of surfaces with large dimensions | Louis Wartski, Christian Schwebel | 1998-05-19 |
| 5720926 | Apparatus for removing a contaminant from a gas | Gary Whipp, Denis Chouinard, Josee Ethier, Benoit Roy, Belhocine Benallal | 1998-02-24 |
| 5292407 | Process for converting heat stable amine salts to heat regenerable amine salts | Leo E. Hakka, Jean I. Sarlis | 1994-03-08 |
| 5202103 | Removal of sulfur dioxide from gas streams | John C. H. Chang, Leo E. Hakka | 1993-04-13 |