Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300130 | Polishing material | — | 1994-04-05 |
| 5131923 | Vitrified bonded sol gel sintered aluminous abrasive bodies | Carole J. Markhoff-Matheny, John Hay | 1992-07-21 |
| 5131926 | Vitrified bonded finely milled sol gel aluminous bodies | Carole J. Markhoff-Matheny | 1992-07-21 |
| 5014468 | Patterned coated abrasive for fine surface finishing | Sitaramaiah Ravipati, Eugene Zador, Wesley R. Kaczmarek, Ernest A. Coleman | 1991-05-14 |
| 4997461 | Nitrified bonded sol gel sintered aluminous abrasive bodies | Carole J. Markhoff-Matheny, John Hay | 1991-03-05 |
| 4541842 | Glass bonded abrasive agglomerates | — | 1985-09-17 |