Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4989561 | Method and apparatus to clean the intake system of an internal combustion engine | Steven R. Hein, Sidney R. Clack | 1991-02-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4989561 | Method and apparatus to clean the intake system of an internal combustion engine | Steven R. Hein, Sidney R. Clack | 1991-02-05 |