Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11555367 | Adaptive tractor wheel | Adan Hernandez Herrera, Tanest Chinwanawich | 2023-01-17 |
| 11047190 | Adaptive tractor wheel | Adan Hernandez Herrera, Tanest Chinwanawich | 2021-06-29 |
| 10024992 | Structural element for sonic tools and acoustic isolators | Chung Chang, Muralidhar Seshadri, Paul G. Junghans, Gary Kainer | 2018-07-17 |
| 8794317 | Cased borehole tool orientation measurement | Chung Chang, Henri-Pierre Valero | 2014-08-05 |
| 8141635 | Cased borehole tool orientation measurement | Chung Chang, Henri-Pierre Valero | 2012-03-27 |
| 7617908 | Downhole seismic source | Chung Chang, Richard Timothy Coates | 2009-11-17 |