Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961069 | Dual optical level monitor | — | 1990-10-02 |
| 4878019 | Electrical sensing system for measuring ferrous particles within a fluid with temperature compensation circuit | Nicholas Maris, Charles E. Montague | 1989-10-31 |
| 4731578 | Electrical sensing system for measuring ferrous particles within a fluid | — | 1988-03-15 |