Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5589928 | Method and apparatus for measuring distance to a target | W. Randall Babbitt, John A. Bell, Barbara A. Capron, Peter J. DeGroot, Ronald L. Hagman +2 more | 1996-12-31 |
| 5493394 | Method and apparatus for use in measuring frequency difference between light signals | Peter De Groot | 1996-02-20 |
| 5371587 | Chirped synthetic wavelength laser radar | Peter De Groot | 1994-12-06 |
| 4979178 | Tunable narrow-linewidth semiconductor laser | Raymond G. Beausoleil, Ronald L. Hagman | 1990-12-18 |