Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6078181 | Method for the measurement of forest duff moisture content | Peter R. Robichaud, Roger D. Hungerford | 2000-06-20 |
| 5920195 | Apparatus and method for the measurement of forest duff moisture content | Peter R. Robichaud, Roger D. Hungerford | 1999-07-06 |
| 4949014 | Device for regulating luminous flux of battery powered headlamp | — | 1990-08-14 |