Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5313202 | Method of and apparatus for detection of ice accretion | Robert John Hansman, Jr. | 1994-05-17 |
| 5039439 | Optically indicating surface de-icing fluids | R. John Hansman, Jr. | 1991-08-13 |