Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6303030 | Ferrographic apparatus | William W. Seifert, Robert S. Wenstrup, Vernon C. Westcott | 2001-10-16 |
| 6156208 | Ferrographic method | William W. Seifert, Robert S. Wenstrup, Vernon C. Westcott | 2000-12-05 |
| 5714059 | Flow unit for ferrographic analysis | William W. Seifert, Vernon C. Westcott | 1998-02-03 |
| 5309213 | Optical determination of amount of soot in oil sample | William W. Seifert, Vernon C. Westcott | 1994-05-03 |