Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884489 | High performance electromagnetic railgun launcher | Damon A. Weeks, William F. Weldon, John H. Gully, Jim L. Upshaw, Mike L. Spann +1 more | 1989-12-05 |
| 4859819 | Staged opening switch | William F. Weldon, Ben M. Rech | 1989-08-22 |