Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6397399 | Protective headguard | John Lampe, George C. Halvorson | 2002-06-04 |
| 6381760 | Protective headguard | John Lampe, George C. Halvorson | 2002-05-07 |
| 6349416 | Headguard-protective sports headband | John Lampe, George C. Halvorson | 2002-02-26 |