Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6499539 | Process for reducing the adsorption of polymers onto rock matrix | Thomas P. Lockhart, Alessandro Lezzi, Alberto Guarneri | 2002-12-31 |
| 6495493 | Non-damaging drilling fluids | Martin Bartosek, Alberto Guarneri | 2002-12-17 |