Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203886 | High porosity vitrified bonded grinding wheels | David A. Sheldon, Renato Terragni | 1993-04-20 |
| 5131923 | Vitrified bonded sol gel sintered aluminous abrasive bodies | John Hay, David Rostoker | 1992-07-21 |
| 5131926 | Vitrified bonded finely milled sol gel aluminous bodies | David Rostoker | 1992-07-21 |
| 4997461 | Nitrified bonded sol gel sintered aluminous abrasive bodies | John Hay, David Rostoker | 1991-03-05 |
| 4898597 | Frit bonded abrasive wheel | John Hay, Brian E. Swanson | 1990-02-06 |