Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6532297 | Gambling chip recognition system | — | 2003-03-11 |
| 5702026 | Container with secondary containment venting by form of construction | — | 1997-12-30 |
| D387847 | Cylindrical storage tank | David C. Wadlington, Mark Schack, G. Clinton Brookhart, Jr., David P. Harris | 1997-12-16 |
| 5372772 | Method for entombment of container in concrete | Ralph Bambacigno | 1994-12-13 |
| 5235999 | Drop tube assembly with shut-off valve and method for assembling the same | Don K. Shackelford | 1993-08-17 |
| 5234191 | Apparatus for forming a fluid containment vault | Ralph Bambacigno | 1993-08-10 |
| 5174079 | Fluid containment vault with homogeneous concrete-entombed tank | Ralph Bambacigno | 1992-12-29 |
| 5157888 | Storage vault and method for manufacture | — | 1992-10-27 |
| 5064155 | Tank stabilizer | Ralph Bambacigno | 1991-11-12 |
| 4986436 | Above ground liquid storage system with overfill reservoir | Ralph Bambacigno | 1991-01-22 |
| 4963082 | Apparatus for entombment of tanks in concrete | Ralph Bambacigno | 1990-10-16 |
| 4826644 | Method for entombment of tanks in concrete | Ralph Bambacigno | 1989-05-02 |