Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7337068 | Global classification of sonic logs | Henri-Pierre Valero, Takeshi Endo | 2008-02-26 |
| 6845325 | Global classification of sonic logs | Henri-Pierre Valero, Takeshi Endo | 2005-01-18 |
| 6654688 | Processing sonic waveform measurements | Takeshi Endo, Henri-Pierre Valero, Vivian Pistre, Yoshiyuki Saiki | 2003-11-25 |
| 6474439 | Dipole logging tool | David C. Hoyle, Hitoshi Tashiro, Benoit Froelich, Hiroshi Hori, Hitoshi Sugiyama +2 more | 2002-11-05 |
| 6459993 | Processing sonic waveform measurements from array borehole logging tools | Henri-Pierre Valero, Kai Hsu | 2002-10-01 |
| 4888740 | Differential energy acoustic measurements of formation characteristic | Kai Hsu, Richard A. Plumb | 1989-12-19 |
| 4870627 | Method and apparatus for detecting and evaluating borehole wall fractures | Kai Hsu, Richard A. Plumb | 1989-09-26 |