Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5052219 | Procedure and cell for measuring coefficients of adhesion and friction of a drilling fluid | Jean-Marc Patroni | 1991-10-01 |
| 4975483 | Process for treating an aqueous solution of acrylamide resin in order to enable it to gel slowly even at high temperature | Marie-Christine P. Leblanc, Josiane Durrieu, Jean-Pierre Binon, Gerard Provin | 1990-12-04 |
| 4352674 | Method of tracing a well drilling mud | — | 1982-10-05 |