Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7746078 | Method and system of calculating resistivity of an earth formation | Michael S. Bittar, Guoyu Hu | 2010-06-29 |
| 7427863 | Method and system for calculating resistivity of an earth formation | Michael S. Bittar, Guoyu Hu | 2008-09-23 |
| 7098664 | Multi-mode oil base mud imager | Michael S. Bittar, Guoyu Hu | 2006-08-29 |
| 5057658 | Apparatus for oil filtration and recirculation | Daniel Andrés Vásquez Cano | 1991-10-15 |
| D314127 | Hand-powered nail driver | Fred W. Williamson | 1991-01-29 |
| D262505 | Counter | Lloyd A. Dye | 1982-01-05 |