Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021861 | Toilet with collection chamber | Keith E. Muellenbach, Kyle L. Hokel | 2021-06-01 |
| 10927537 | Line pressure-driven, tankless, siphonic toilet | Sudip Mukerji, Michael Luettgen, William Kalk, Jeremy Rauwerdink, Jeffrey T. Laundre +3 more | 2021-02-23 |
| 10907332 | Flush actuator assembly | Tony L. Lambert, Daniel N. Halloran, Jonathan Guay, Keith E. Muellenbach | 2021-02-02 |