Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10690771 | Method and apparatus for object detection using human echolocation for the visually impaired | Michael J. Biffignani, Tim Chen | 2020-06-23 |
| 7921687 | Wheel reconditioning method and apparatus | — | 2011-04-12 |