Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4744427 | Bit design for a rotating bit incorporating synthetic polycrystalline cutters | — | 1988-05-17 |
| 4673044 | Earth boring bit for soft to hard formations | Louis K. Bigelow, Alexander R. Meskin | 1987-06-16 |
| 4586574 | Cutter configuration for a gage-to-shoulder transition and face pattern | — | 1986-05-06 |
| 4499959 | Tooth configuration for an earth boring bit | Jana Brown | 1985-02-19 |
| 4491188 | Diamond cutting element in a rotating bit | — | 1985-01-01 |
| 4352400 | Drill bit | Gordon G. Sirrine, John S. Davis | 1982-10-05 |