Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5192513 | High speed process and apparatus for carbonating water | William C. Stumphauzer, Hugh F. Groth | 1993-03-09 | |
| 4712740 | Venturi spray nozzle for a cleaning device | Hugh F. Groth, John Collins | 1987-12-15 | $1,990,000 |
| 4559666 | Air-liquid separator for cleaning devices | Hugh F. Groth, Peter A. Basile | 1985-12-24 | $137,000 |
| 4406570 | Materials handling system | Richard W. Germuska, Stephen L. Kral, Robert R. Lasecki, Michael W. Riley | 1983-09-27 | $4,253,000 |
| 4350257 | Kit for assembling toolbox adapted for installation in back of pickup truck and method of assembling the toolbox | Hugh F. Groth | 1982-09-21 |