Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5514631 | Alumina sol-gel fiber | Thomas E. Cottringer, Ralph Bauer, Walter A. Yarbrough | 1996-05-07 |
| 5395407 | Abrasive material and method | Thomas E. Cottringer, Ralph Bauer, Walter A. Yarbrough | 1995-03-07 |
| 5383945 | Abrasive material and method | Thomas E. Cottringer, Ralph Bauer, Walter A. Yarbrough | 1995-01-24 |
| 5244477 | Sintered sol gel alumina abrasive filaments | Charles V. Rue, Ralph Bauer, Scott W. Pellow, Thomas E. Cottringer, Richard J. Klok | 1993-09-14 |
| 5194072 | Sintered sol gel alumina abrasive filaments | Charles V. Rue, Ralph Bauer, Scott W. Pellow, Thomas E. Cottringer, Richard J. Klok | 1993-03-16 |
| 5009676 | Sintered sol gel alumina abrasive filaments | Charles V. Rue, Ralph Bauer, Scott W. Pellow, Thomas E. Cottringer, Richard J. Klok | 1991-04-23 |
| 4623364 | Abrasive material and method for preparing the same | Thomas E. Cottringer, Ralph Bauer | 1986-11-18 |