Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11371235 | Partial blockage detection using backwater valve | Michael E. Gibson, Raymond MacDonald, Joseph MACISSAC, Michael Szkudlarek | 2022-06-28 |
| 10533312 | Partial blockage detection using backwater valve | Michael E. Gibson, Raymond MacDonald, Joseph MACISSAC, Michael Szkudlarek | 2020-01-14 |