Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5325923 | Well completions with expandable casing portions | Jim B. Surjaatmadja, Timothy W. Helton | 1994-07-05 |
| 5314015 | Stage cementer and inflation packer apparatus | Steven G. Streich, John T. Brandell, Lee W. Stepp | 1994-05-24 |
| 5277253 | Hydraulic set casing packer | Alan B. Duell, Anthony M. Badalamenti | 1994-01-11 |