Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11180910 | Toilet with non-vitreous flush engine | Billy Jack Ahola, Andrew L. Smith, Donald G. Bogenschuetz, Tobin J. Vetting, Lawrence E. Duwell +1 more | 2021-11-23 |
| 11021863 | Pre-primed siphonic toilet | Andrew L. Smith, Billy Jack Ahola, Larry Duwell, Don Bogenschuetz, Peter W. Swart +1 more | 2021-06-01 |