Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810133 | Tension leg platform tendon installation by deep catenary tow | Frans Kopp | 1989-03-07 |
| 4549836 | Ice slot construction | Dean P. Hemphill | 1985-10-29 |
EP
Edward H. Phifer
Overall (All Time): #2,329,006 of 4,157,543Top 60%
2
Patents All Time