Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7284614 | Wellbore system for simultaneous drilling and production | Hugh Sheehy | 2007-10-23 |
| 5458440 | Offshore pipeline system | — | 1995-10-17 |
LH
Laurens Cornelis Van Helvoirt
Overall (All Time): #2,162,084 of 4,157,543Top 55%
2
Patents All Time