Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33624 | Bath with a vertically movable seat | Richard W. Duffin | 1991-07-02 |
| 4726081 | Bath with a vertically movable seat | Richard W. Duffin | 1988-02-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33624 | Bath with a vertically movable seat | Richard W. Duffin | 1991-07-02 |
| 4726081 | Bath with a vertically movable seat | Richard W. Duffin | 1988-02-23 |