Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D350185 | Bathtub | Fred W. Dierks | 1994-08-30 |
| D347049 | Combined bathtub and shower enclosure | Fred W. Dierks | 1994-05-17 |
| D347052 | Shower stall | Fred W. Dierks | 1994-05-17 |
| D336949 | Shower enclosure | Fred W. Dierks | 1993-06-29 |