Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |