Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818773 | Alkylaminophosphonic chelating resins, their preparation and use in purifying brines | Michel A. G. Cornette, Jacques E. A. Franc, Paul D. A. Grammont | 1989-04-04 |
| 4579718 | Apparatus for continuous production of polymer beads of controlled size | Claude R. L. Vairetti, Michel R. L. Desnoyers, Paul D. A. Grammont, Arkadyi B. Pachkov, Vladimir Grigoriev +1 more | 1986-04-01 |
| 4424318 | Continuous production of polymer beads of controlled size | Claude R. L. Vairetti, Michel R. L. Desnoyers, Paul D. A. Grammont, Arkadyi B. Pachkov, Vladimir Grigoriev +1 more | 1984-01-03 |