Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5514421 | Airfoil air ring | Stanley J. Pietrzykowski, Jr., Edward C. Williams, Robert W. Hedrick | 1996-05-07 |
| 5223104 | Method for painting an engine | John A. Grassi, Harry N. Gephart, Deane I. Biehler | 1993-06-29 |
| 4207626 | Acoustic decoy and jammer | Leon E. Wedding | 1980-06-10 |
| 4202047 | Acoustic jammer and torpedo decoy | Vivian L. Chrisler, deceased, George L. Boyer | 1980-05-06 |