Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5368103 | Method of setting a balanced cement plug in a borehole | James F. Heathman, Robert B. Carpenter, Kenneth P. Marcel, Robert R. Siffert, Charles J. Rimer | 1994-11-29 |
| 5277253 | Hydraulic set casing packer | Richard L. Giroux, Alan B. Duell | 1994-01-11 |