Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4614235 | Use of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipe | John C. Newlove, Robert C. Portnoy, Daniel Frederick Fehler, Kenneth W. Pober | 1986-09-30 |