Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872432 | Oilless internal combustion engine having gas phase lubrication | Wallace R. Wade | 1989-10-10 |
| 4846051 | Uncooled oilless internal combustion engine having uniform gas squeeze film lubrication | Wallace R. Wade, Peter H. Havstad | 1989-07-11 |