Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324758 | Analysis of lubricating oils for iron content | Kent J. Eisentraut, William D. Ross, William J. Hillan, Thomas G. Duffy | 1982-04-13 |
| 4238197 | Analysis of lubricating oils for iron content | Kent J. Eisentraut, William D. Ross, William J. Hillan, Thomas G. Duffy | 1980-12-09 |