Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213591 | Abrasive grain, method of making same and abrasive products | Ahmet Celikkaya, Jerald A. Scherger | 1993-05-25 |
| 5102429 | Shelling-resistant abrasive grain, a method of making the same, and abrasive products | Robert S. Kirk | 1992-04-07 |
| 5011508 | Shelling-resistant abrasive grain, a method of making the same, and abrasive products | Robert S. Kirk | 1991-04-30 |
| 5011512 | Coated abrasive products employing nonabrasive diluent grains | Richard Masson, Fredrick D. Brown, David E. Broberg | 1991-04-30 |