Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221170 | Coated threaded fasteners | Richard J. Duffy, Joseph R. Dudley, Max F. Dorflinger | 1993-06-22 |
| RE33766 | Coated fasteners and process for making the same | Richard J. Duffy, Joseph R. Dudley | 1991-12-10 |