Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443418 | Superabrasive tool | James E. Frodin, Jean Kramp | 1995-08-22 |
| 5244477 | Sintered sol gel alumina abrasive filaments | Charles V. Rue, Ronald H. van de Merwe, Ralph Bauer, Thomas E. Cottringer, Richard J. Klok | 1993-09-14 |
| 5194072 | Sintered sol gel alumina abrasive filaments | Charles V. Rue, Ronald H. van de Merwe, Ralph Bauer, Thomas E. Cottringer, Richard J. Klok | 1993-03-16 |
| 5090968 | Process for the manufacture of filamentary abrasive particles | — | 1992-02-25 |
| 5009676 | Sintered sol gel alumina abrasive filaments | Charles V. Rue, Ronald H. van de Merwe, Ralph Bauer, Thomas E. Cottringer, Richard J. Klok | 1991-04-23 |
| 4960441 | Sintered alumina-zirconia ceramic bodies | Ronald W. Trischuk, Christopher E. Knapp, Ralph Bauer | 1990-10-02 |