Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D255828 | Toilet | William Croonenberg | 1980-07-08 |
| 4192027 | Toilet | Frank T. Sargent | 1980-03-11 |
| 4185337 | Portable toilet with improved flush apparatus | Frank T. Sargent, John M. Antos, Arthur W. Henke, James T. Embach, Erin J. Lindsay | 1980-01-29 |