Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D500365 | Wall panel for a portable restroom | Daniel Sommerfeld | 2004-12-28 |
| D499175 | Portable toilet | Daniel Sommerfeld, David Joseph Harris, Reginald Adams | 2004-11-30 |
| 6766541 | Joint for a portable restroom | Reginald Adams, Daniel Sommerfeld, David Joseph Harris | 2004-07-27 |
| 6698995 | Hitch mounted refuse container transport device | Russell J. Bik | 2004-03-02 |