Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007285 | Low cost drifter | John M. Dahlen, Narender K. Chhabra, Richard K. Araujo, Robert W. Reid, Matti Soikkeli | 1991-04-16 |
| 4972593 | Method and apparatus for measuring the undistorted magnetic field of the earth | John M. Dahlen, John T. Shillingford, Jr. | 1990-11-27 |
| 4529400 | Apparatus for naso and oroendotracheal intubation | — | 1985-07-16 |