Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4649281 | Oil content monitor/control system | Ray Schmitt, Joseph A. Gavin, Charles N. Waltrick, deceased | 1987-03-10 |
| 4647371 | Oil/water disperser device for use in an oil content monitor/control system | Ray Schmitt, Chadwick L. Trent, Joseph A. Gavin | 1987-03-03 |