Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8061430 | Re-settable and anti-rotational contraction joint with control lines | Michael Hui Du, David Verzwyvelt | 2011-11-22 |
CE
Claus Endruhn
Overall (All Time): #3,270,261 of 4,157,543Top 80%
1
Patents All Time