Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851833 | Digital engine analyzer | Michael C. Putrow, Leonard Wisneski, Gary Jonker, Gordon Lindhard, Dennis W. Weidenbenner +1 more | 1989-07-25 |
| 4849744 | Digital engine analyzer | Michael C. Putrow | 1989-07-18 |
| 4847563 | Distributorless ignition interface | John C. Sniegowski, Dennis G. Thibedeau, Ron D. Geisler | 1989-07-11 |
| 4804921 | Digital engine analyzer | Michael C. Putrow, Leonard Wisneski, Gary Jonker, Gordon Lindhard, Dennis W. Weidenbenner +1 more | 1989-02-14 |
| 4800378 | Digital engine analyzer | Michael C. Putrow, Leonard Wisneski, Gary Jonker, Gordon Lindhard, Dennis W. Weidenbenner +1 more | 1989-01-24 |