Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814661 | Systems for measurement and analysis of forces exerted during human locomotion | Marc H. Ratzlaff, John Frame | 1989-03-21 |
| 4703217 | Electronic animal hoof force detection systems | Marc H. Ratzlaff, John Frame | 1987-10-27 |