Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646379 | Attentuator for borehole acoustic waves | David Johnson, Sergio Kostek, Abderrhamane Ounadjela | 1997-07-08 |
CH
Chuar-Jian Hsu
Overall (All Time): #3,719,717 of 4,157,543Top 90%
1
Patents All Time