Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7370537 | Ceramic ball bearing acoustic test method | Michael J. O'Brien, Michael Hilton | 2008-05-13 |
| 6952969 | Ceramic ball bearing fracture test method | Michael J. O'Brien | 2005-10-11 |