Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351768 | Earth-boring bit with improved cutting structure | Danny E. Scott, Robert E. Grimes, Matthew R. Isbell | 1994-10-04 |
| 5351769 | Earth-boring bit having an improved hard-faced tooth structure | Danny E. Scott, Anton F. Zahradnik | 1994-10-04 |
| 5346026 | Rolling cone bit with shear cutting gage | Danny E. Scott | 1994-09-13 |
| 5323865 | Earth-boring bit with an advantageous insert cutting structure | Matthew R. Isbell, Robert E. Grimes | 1994-06-28 |
| 5311958 | Earth-boring bit with an advantageous cutting structure | Matthew R. Isbell | 1994-05-17 |
| RE34526 | Two cone bit with non-opposite cones | — | 1994-02-01 |