Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009510 | Two way check shot and reverse VSP while drilling | — | 2011-08-30 |
CC
Chung Chang
Overall (2011): #336,745 of 364,097Top 95%
1
Patents 2011