Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886577 | Product identification rings for below ground storage tanks | Paul E. Phillips | 2005-05-03 |
| 5435335 | Overflow valve | — | 1995-07-25 |
| 5033519 | Storage tank flow control valve | Rick E. Puffer, Leo J. LeBlanc, Robert P. Whitney | 1991-07-23 |
| 4793387 | Overfill spillage protection device | Leo J. LeBlanc | 1988-12-27 |
| 4646773 | Breakaway hose coupling | Leo J. LeBlanc | 1987-03-03 |
| 4637522 | Locking lid for overfill-spillage protection system | — | 1987-01-20 |