Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5522260 | Method and apparatus for determining a depth correction for a logging tool in a well | Michel Berard, Philip Cheung | 1996-06-04 |
HC
Herve Chappellat
Overall (All Time): #3,744,156 of 4,157,543Top 95%
1
Patents All Time