Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6514302 | Methods for producing granular molding materials for abrasive articles | Michael J. Lemberger, John P. McNamara, Raymond Pellerin, Rene Goutte | 2003-02-04 |
| 5769700 | Grinding wheel | John P. McNamara | 1998-06-23 |
| 4910924 | Composite grinding wheel | William L. Bouchard, Charles W. Sudol, Brian E. Swanson | 1990-03-27 |
| 4657563 | Resin bonded grinding wheels with fillers | Robert H. Licht | 1987-04-14 |