Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799907 | Survival apparatus | Roman Jankowiak | 1989-01-24 |
| 4768128 | Water activated pressurized gas release device | Roman Jankowiak | 1988-08-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799907 | Survival apparatus | Roman Jankowiak | 1989-01-24 |
| 4768128 | Water activated pressurized gas release device | Roman Jankowiak | 1988-08-30 |