Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5731079 | Diamond cutting tools | Mark S. Hammond | 1998-03-24 |
| 5681653 | Diamond cutting tools | Mark S. Hammond | 1997-10-28 |
| 5588975 | Coated grinding tool | Mark S. Hammond | 1996-12-31 |
| 4950365 | Corrosion free hard coated metal substrates | — | 1990-08-21 |