Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7350577 | Method and apparatus for injecting steam into a geological formation | William F. Howard, Jackie C. Sims, Ronald W. Schmidt | 2008-04-01 |
| 6708763 | Method and apparatus for injecting steam into a geological formation | William F. Howard, Jackie C. Sims, Ronald W. Schmidt | 2004-03-23 |