Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622464 | Screw with increased driving resistance at proper depth | Michael C. Dill, Juergen O. Rathgeber | 1997-04-22 |
| 5605018 | Flexible roof end cap | Michael C. Dill, Juergen O. Rathgeber, John A. Wand, John Fox | 1997-02-25 |
| 5558479 | Wall anchor accommodating fasteners of varying thread diameters | — | 1996-09-24 |