Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5985228 | Method for controlling the particle size distribution in the production of multicrystalline cubic boron nitride | Frank Corrigan, John Zarichansky | 1999-11-16 | $106,940,000 |
| 5466269 | Polycrystalline cubic boron nitride abrasive particles and abrasive tools made therefrom | Frank Corrigan, Barbara Sweeting | 1995-11-14 | $35,216,000 |