Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633796 | Method and apparatus for inferring engine oil temperature for use with an oil change indicator | Michael John Cullen | 1997-05-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633796 | Method and apparatus for inferring engine oil temperature for use with an oil change indicator | Michael John Cullen | 1997-05-27 |