Patents per Year
Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5143033 | Internal combustion engine having an integral cylinder head | Norbert Vogl, Michael E. Kendziora | 1992-09-01 | $3,422,000 |
| 4372433 | Combination clutch/brake mechanism | Robert K. Mitchell | 1983-02-08 | $2,945,000 |
| 4233043 | Air cleaner for internal combustion engine | — | 1980-11-11 | $1,093,000 |