Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38246 | Segmental face mask | Arnold S. Leonard, James L. Kruse | 2003-09-16 |
| 5765231 | Segmental face mask | Arnold S. Leonard, James L. Kruse | 1998-06-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38246 | Segmental face mask | Arnold S. Leonard, James L. Kruse | 2003-09-16 |
| 5765231 | Segmental face mask | Arnold S. Leonard, James L. Kruse | 1998-06-16 |