Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687839 | Container for disposing of hazardous wastes | J. Russell Gnau, III, Vincent Americo Valvona, John R. Gnau, Jr. | 1997-11-18 |
| 5511657 | Container for disposing of hazardous medical waste | J. Russell Gnau, III, Vincent Americo Valvona, John R. Gnau, Jr. | 1996-04-30 |