Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11311156 | Instrumented toilet seat | David R. Hall, Dan Allen, Justin Robinson | 2022-04-26 |
| 10383576 | Synthetic aperture photoplethysmography sensor | David R. Hall, Dan Allen, Daniel Hendricks, Justin Robinson | 2019-08-20 |
| 10139381 | Toilet for filtering and analyzing gas components of excretia | David R. Hall, Dan Allen, Steven J.M. Butala, Justin Robinson | 2018-11-27 |
| 9867513 | Medical toilet with user authentication | David R. Hall, Dan Allen | 2018-01-16 |
| 9837056 | Guitar pick holder | — | 2017-12-05 |
| 5889855 | Telephone line access box enclosure | — | 1999-03-30 |