Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6048174 | Impact resistant hollow airfoils | Marc Samit, Douglas A. Welch, Paul W. Duesler, Allan R. Penda | 2000-04-11 |
PM
Patrick D. Markham
Overall (All Time): #3,611,824 of 4,157,543Top 90%
1
Patents All Time