Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D419018 | Toothbrush holder | — | 2000-01-18 |
| 5706551 | Door closers and dampers primarily for door closers | John Humpherson | 1998-01-13 |
| 5560079 | Door closers | — | 1996-10-01 |
| 4991256 | Door closers | John W. Sewell | 1991-02-12 |