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Patent applications and USPTO patent grants for Scheffel; John W..The latest application filed is for "inhibiting wax deposition from a wax-containing oil".
Patent | Date |
---|---|
Inhibiting wax deposition from a wax-containing oil Grant 4,045,360 - Fischer , et al. August 30, 1 | 1977-08-30 |
Method of treating a subterranean formation with a polymeric diverting agent Grant 4,005,753 - Scheffel , et al. February 1, 1 | 1977-02-01 |
Polymeric diverting agent Grant 3,954,629 - Scheffel , et al. May 4, 1 | 1976-05-04 |
Method And Composition For Treating High Pour Point Oils Under Low Ambient Temperature Conditions Grant 3,840,352 - Scheffel October 8, 1 | 1974-10-08 |
Method And Composition For Treating High-temperature Subterranean Formations Grant 3,684,012 - Scheffel , et al. August 15, 1 | 1972-08-15 |
Method And Composition For Treating Subterranean Formations Grant 3,630,280 - Fischer , et al. December 28, 1 | 1971-12-28 |
Method And Composition For Treating Low-temperature Subterranean Formations Grant 3,593,794 - Fischer , et al. July 20, 1 | 1971-07-20 |
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