Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1037818 | Stone rounding tool | — | 2024-08-06 |
| 6287181 | Universal polishing head | Michael D. Brown | 2001-09-11 |
| 5092910 | Abrasive tool and method for making | Naum N. Tselesin | 1992-03-03 |
| 4925457 | Abrasive tool and method for making | Naum N. Tselesin | 1990-05-15 |
| 4641628 | Removable mount for cutting means | — | 1987-02-10 |
| 4517954 | Removable mount for cutting means | John Phildius | 1985-05-21 |