Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474934 | Directed air flow coupling guard | John William Ash, Charles Alexander Greenawalt | 2002-11-05 |
| D405874 | Seated shower base | Thomas H. Jahnke, Dale Graham | 1999-02-16 |
| D324417 | Bath tub | — | 1992-03-03 |
| 4848409 | Coupling guard | — | 1989-07-18 |