Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238074 | Mosaic diamond drag bit cutter having a nonuniform wear pattern | Gordon A. Tibbitts | 1993-08-24 |
| 4442703 | Pipe testing apparatus | Fred L. Herman | 1984-04-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238074 | Mosaic diamond drag bit cutter having a nonuniform wear pattern | Gordon A. Tibbitts | 1993-08-24 |
| 4442703 | Pipe testing apparatus | Fred L. Herman | 1984-04-17 |