Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6266827 | Impact protection headguard | John Lampe, Robert C. Long, George C. Halvorson, Seth G. Halvorson | 2001-07-31 |
| 5930841 | Soccer headguard | John Lampe, Robert C. Long, George C. Halvorson | 1999-08-03 |