Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645037 | Ignition system for an internal combustion engine, particularly for use in a chain saw or the like | Per-Anders Chrintz-Gath | 1997-07-08 |
| 5606958 | Ignition system for an internal-combustion engine, particularly for use in a chain saw or the like | Per-Anders Chrintz-Gath | 1997-03-04 |
| 5180907 | Method and apparatus for the measurement of rapid light variation superimposed on a slowly changing background light intensity | Jan K. Ober | 1993-01-19 |
| 4958925 | Eye movement measurement device with multiple light emitting and detecting elements | Jan K. Ober | 1990-09-25 |
| 4735498 | Eye movement measuring apparatus | Jan K. Ober | 1988-04-05 |