Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5181568 | Methods of selectively reducing the water permeabilities of subterranean formations | Danny Rothenberger | 1993-01-26 |
| 5002127 | Placement aid for dual injection placement techniques | Dwyann Dalrymple, Frank A. Wood | 1991-03-26 |