Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6232773 | Consistent drag floating backing bar system for pipeline pigs and method for using the same | Scott K. Jacobs, Donald M. Macaulay | 2001-05-15 | $41,062,000 |
| 5609342 | Gas shaft seal with flexible converging sealing faces | Robert A. Peterson, Clayton Bear | 1997-03-11 |