Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687839 | Container for disposing of hazardous wastes | Michael P. Gnau, Vincent Americo Valvona, John R. Gnau, Jr. | 1997-11-18 |
| 5511657 | Container for disposing of hazardous medical waste | Michael P. Gnau, Vincent Americo Valvona, John R. Gnau, Jr. | 1996-04-30 |
| 5330142 | Mobile support frame for radiation detection equipment | — | 1994-07-19 |