Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8757443 | Portable dispenser | Keith A. Pelfrey, Michael M. Potempa | 2014-06-24 |
| 5069297 | Drill pipe/casing protector and method | R. Ernst Krueger | 1991-12-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8757443 | Portable dispenser | Keith A. Pelfrey, Michael M. Potempa | 2014-06-24 |
| 5069297 | Drill pipe/casing protector and method | R. Ernst Krueger | 1991-12-03 |