Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5611401 | One-trip conveying method for packer/plug and perforating gun | William D. Myers, Kare-Jonny Haugvalstad, Kelly D. Ireland, Timothy Sampson | 1997-03-18 |
| 5603384 | Universal perforating gun firing head | David Hosie, Michael Brian Grayson | 1997-02-18 |