Issued Patents All Time
Showing 1–25 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428828 | Grey water toilet and flushing method | William Kuru, Randy S. Graskamp | 2025-09-30 |
| D1083048 | Toilet seat | William Kuru | 2025-07-08 |
| 12320110 | Clean toilet and accessories | Michael Luettgen, William Kuru, Peter W. Denzin | 2025-06-03 |
| 12296074 | Collection panels for bathroom aerosols | William Kuru, William Kalk | 2025-05-13 |
| 12281468 | Sanitization system | William Kuru | 2025-04-22 |
| 12168865 | Air drive system for a toilet | William Kuru, Jeremiah J. Rauwerdink | 2024-12-17 |
| 12163325 | Toilet with efficient water flow path | Jeremiah J. Rauwerdink, Randal S. Graskamp | 2024-12-10 |
| 12152381 | Toilet with vitreous china flush engine and polymeric outer structure | Mark W. Schibur, Jeremiah J. Rauwerdink | 2024-11-26 |
| 12139899 | Line pressure-driven, tankless, siphonic toilet | Sudip Mukerji, Michael Luettgen, William Kalk, Randy O. Mesun, Jeff Laundre +3 more | 2024-11-12 |
| 12134885 | Plumbing fixture with electro-chlorinating device | William Kalk, William Kuru | 2024-11-05 |
| 12104366 | Clean toilet and accessories | Michael Luettgen, William Kuru, Peter W. Denzin | 2024-10-01 |
| 12098534 | Touchless flushing systems and methods | Peter W. Denzin, Jeffrey C. Hildebrand, Brian D. Renzelman, Joseph L. Stauber, Eric M. Plate | 2024-09-24 |
| D1040136 | Plumbing fixture | Shawn J. Booth, Dongha Lee, Gabriela Christina Burton-Rodriguez, Carlos F. Uceda, Matthew R. Wegner +2 more | 2024-08-27 |
| 12065817 | System and method for touchless actuation of a toilet | John Lipinski, Timothy Waack | 2024-08-20 |
| 11987969 | Fluidics devices for plumbing fixtures | William Kuru, William Kalk, Randal S. Graskamp | 2024-05-21 |
| 11920336 | Clean toilet and accessories | Michael Luettgen, William Kuru, Peter W. Denzin | 2024-03-05 |
| 11913211 | Clean toilet and accessories | Michael Luettgen, William Kuru, Peter W. Denzin | 2024-02-27 |
| 11885111 | Grey water toilet and flushing method | William Kuru, Randy S. Graskamp | 2024-01-30 |
| 11879242 | Eductor assisted flush toilet | Jeremiah J. Rauwerdink, Randal S. Graskamp | 2024-01-23 |
| 11873634 | Clean toilet and accessories | William Kuru, Peter W. Denzin | 2024-01-16 |
| 11753808 | Air drive system for a toilet | William Kuru, Jeremiah J. Rauwerdink | 2023-09-12 |
| 11739519 | Toilet with efficient water flow path | Jeremiah J. Rauwerdink, Randal S. Graskamp | 2023-08-29 |
| 11739517 | Fluidics devices for plumbing fixtures | William Kuru, William Kalk, Randal S. Graskamp | 2023-08-29 |
| 11674298 | Clean toilet and accessories | Michael Luettgen, William Kuru, Peter W. Denzin | 2023-06-13 |
| 11560702 | Touchless flushing systems and methods | Peter W. Denzin, Jeffrey C. Hildebrand, Brian D. Renzelman, Joseph L. Stauber, Eric M. Plate | 2023-01-24 |