Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11371235 | Partial blockage detection using backwater valve | Larry Boyle, Raymond MacDonald, Joseph MACISSAC, Michael Szkudlarek | 2022-06-28 |
| 10533312 | Partial blockage detection using backwater valve | Larry Boyle, Raymond MacDonald, Joseph MACISSAC, Michael Szkudlarek | 2020-01-14 |
| 8714919 | Inlet and exhaust system | James T. Erdmann | 2014-05-06 |
| 5337602 | Pitot static tube having accessible heating element | — | 1994-08-16 |