Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6132675 | Method for producing abrasive compact with improved properties | Henry S. Marek | 2000-10-17 |
| 5855996 | Abrasive compact with improved properties | Henry S. Marek | 1999-01-05 |
| 5560754 | Reduction of stresses in the polycrystalline abrasive layer of a composite compact with in situ bonded carbide/carbide support | David M. Johnson | 1996-10-01 |
| 5320988 | Process for preparing polycrystalline CBN ceramic masses and resulting product | — | 1994-06-14 |
| 5211726 | Products and process for making multigrain abrasive compacts | David E. Slutz | 1993-05-18 |
| 5194071 | Cubic boron nitride abrasive and process for preparing same | Barbara Sweeting, Samuel A. Anthony, III | 1993-03-16 |
| 5106392 | Multigrain abrasive particles | David E. Slutz | 1992-04-21 |
| 5106792 | CBN/CBN composite masses and their preparation | — | 1992-04-21 |
| 5043120 | Process for preparing polycrystalline CBN ceramic masses | — | 1991-08-27 |
| 5015265 | Process for making cubic boron nitride from coated hexagonal boron nitride, and abrasive particles and articles made therefrom | David E. Slutz | 1991-05-14 |
| 4673414 | Re-sintered boron-rich polycrystalline cubic boron nitride and method for making same | Thomas R. Lavens, Richard L. Shott, Harold P. Bovenkerk | 1987-06-16 |
| 4536442 | Process for making diamond and cubic boron nitride compacts | Harold P. Bovenkerk, Paul D. Gigl | 1985-08-20 |
| 4389223 | Surface characteristics of boron rich cubic boron nitride | — | 1983-06-21 |
| 4289503 | Polycrystalline cubic boron nitride abrasive and process for preparing same in the absence of catalyst | — | 1981-09-15 |
| 4231980 | Large boron nitride abrasive particles | — | 1980-11-04 |
| 4201757 | Large boron nitride abrasive particles | — | 1980-05-06 |
| 4188194 | Direct conversion process for making cubic boron nitride from pyrolytic boron nitride | — | 1980-02-12 |