Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897884 | Apparatus for non-invasive calibration of a fluid sensor | — | 1990-01-30 |
| 4388822 | Atmospheric sampling system | — | 1983-06-21 |
| 4258230 | Party line telephone system | Paul W. Schmitt | 1981-03-24 |