Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4780500 | Water retention aids | Joseph V. Sinka, Dinshaw F. Bardoliwalla, Jose L. Villa, Edwin L. Kelley | 1988-10-25 |
| 4741843 | Fluid loss control additives and drilling fluids containing same | Christopher M. Garvey, Arpad Savoly | 1988-05-03 |
| 4674574 | Fluid loss agents for oil well cementing composition | Arpad Savoly, Jose L. Villa, Christopher M. Garvey | 1987-06-23 |