Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5879246 | Informational/training video system | William Gebhardt, Leslie Calvin Hildenbrandt | 1999-03-09 |
| 5609534 | Informational/training video system | William Gebhardt, Leslie Calvin Hildenbrandt | 1997-03-11 |