Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5002127 | Placement aid for dual injection placement techniques | Kenneth W. McKown, Frank A. Wood | 1991-03-26 |
| 4617132 | Method of altering the permeability of a hydrocarbon-containing subterranean formation | Edward F. Vinson | 1986-10-14 |