Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131587 | Hand washing and drying apparatus and system including waste disposal apparatus and method | Charles A. Pfretzschner | 2000-10-17 |
| 5992430 | Automatic hand washing and drying apparatus including combined blow drying means, towel dispensing means and waste disposal means | Charles A. Pfretzschner | 1999-11-30 |
| 5727579 | Automatic hand washing and drying apparatus including combined blow drying means and towel dispensing means | — | 1998-03-17 |
| 4957504 | Implantable blood pump | — | 1990-09-18 |