Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980597 | Color stable coated abrasives | — | 1999-11-09 |
| 5782939 | Low cost coated abrasives | Burton Farbstein, Christopher Michael Gruel | 1998-07-21 |
| 5007943 | Sol-gel process alumina abrasive grain blends in coated abrasive material | Robert G. Kelly, William F. McCutcheon | 1991-04-16 |
| 4230461 | Abrasive wheels | Michael A. Sandman | 1980-10-28 |