Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9963292 | Storage bin and method of use | Ray D. Hardin | 2018-05-08 |
| 5150496 | Internal grinding and cutting device for pipe and casing | — | 1992-09-29 |
| 5062187 | Internal cutting head for drifting pipe | — | 1991-11-05 |
| 4954023 | Internal cutting head for drifting pipe | — | 1990-09-04 |