Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490886 | Interchangeable ring | David E. Steinhauer | 2002-12-10 |
| 6112373 | Clasp assembly | David E. Steinhauer | 2000-09-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490886 | Interchangeable ring | David E. Steinhauer | 2002-12-10 |
| 6112373 | Clasp assembly | David E. Steinhauer | 2000-09-05 |