Routson; Willis G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Routson; Willis G..The latest application filed is for "in situ solvent fractionation of bitumens contained in tar sands".
- Routson; Willis G. - Walnut Creek CA
| Patent | Date |
|---|---|
| In situ solvent fractionation of bitumens contained in tar sands Grant 4,022,277 - Routson May 10, 1 | 1977-05-10 |
| Magnetic Amusement Device Grant 3,817,518 - Routson June 18, 1 | 1974-06-18 |
| Improved Method For Selectively Controlling Flow Of Aqueous Fluids In Subterranean Formations Grant 3,809,160 - Routson May 7, 1 | 1974-05-07 |
| Composition And Method For Diminishing The Flow Of Water Into Permeable Strata Grant 3,789,613 - Routson February 5, 1 | 1974-02-05 |
| Method And Composition For Controlling Flow Through Subterranean Formations Grant 3,701,384 - Routson , et al. October 31, 1 | 1972-10-31 |
| Method For Controlling Flow Of Aqueous Fluids In Subterranean Formations Grant 3,687,200 - Routson August 29, 1 | 1972-08-29 |
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