Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955939 | Shaped charge with explosively driven liquid follow through | James A. Petrousky, Donald J. Butz | 1990-09-11 |
| 4628819 | Disintegrating tamper mass | James A. Petrousky, Donald J. Butz, David William James Holmes, Ernest C. Faccini, Arleigh E. McCree | 1986-12-16 |