Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867757 | Lapping slurry compositions with improved lap rate | — | 1989-09-19 |
| 4853140 | Lubricating fluids for slicing silicon ingots | Earnest M. Kerr | 1989-08-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867757 | Lapping slurry compositions with improved lap rate | — | 1989-09-19 |
| 4853140 | Lubricating fluids for slicing silicon ingots | Earnest M. Kerr | 1989-08-01 |