Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5506677 | Analysis of wear metals in perfluorinated fluids | David W. Johnson | 1996-04-09 |
| 4324758 | Analysis of lubricating oils for iron content | William D. Ross, William J. Hillan, Joseph J. Brooks, Thomas G. Duffy | 1982-04-13 |
| 4238197 | Analysis of lubricating oils for iron content | William D. Ross, William J. Hillan, Joseph J. Brooks, Thomas G. Duffy | 1980-12-09 |