Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062735 | Self sealing domed sewer cover assembly | — | 1991-11-05 |
| 5028320 | Sewer catch basin with gas seal for a petroleum refinery or chemical processing plant | Larry Lacouture | 1991-07-02 |
| 4776722 | Self sealing sewer cover assembly | — | 1988-10-11 |
| 4682907 | Self sealing sewer cover assembly | — | 1987-07-28 |