Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4380264 | Survey tool string | William C. Lyons | 1983-04-19 |
| 4343369 | Apparatus for drilling straight portion of a deviated hole | William C. Lyons, Edward A. Zublin | 1982-08-10 |
| 4328839 | Flexible drill pipe | William C. Lyons | 1982-05-11 |