Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031858 | Apparatus and method for folding and locking rotor blades | Ernst C. Schellhase, Dan Anastas, deceased, by Peggy Anastas, executrix, Cecil E. Covington, Joseph John Zierer +1 more | 1991-07-16 |