Patent applications and USPTO patent grants for Knox; John A..The latest application filed is for "well gravel packing methods".
Patent | Date |
---|---|
Well gravel packing methods Grant 5,295,542 - Cole , et al. March 22, 1 | 1994-03-22 |
Method for effecting controlled break in polysaccharide gels Grant 4,961,466 - Himes , et al. October 9, 1 | 1990-10-09 |
Acidizing subterranean well formations containing deposits of metal compounds Grant 4,151,098 - Dill , et al. April 24, 1 | 1979-04-24 |
Method For Removing Magnetite Scale Grant 3,854,996 - Frost , et al. December 17, 1 | 1974-12-17 |
Method Of Fracture Acidizing A Well Formation Grant 3,842,911 - Knox , et al. October 22, 1 | 1974-10-22 |
Additives For Temporarily Plugging Portions Of Subterranean Formations And Methods Of Using The Same Grant 3,797,575 - Dill , et al. March 19, 1 | 1974-03-19 |
Treatment Of Sandstone Formations Grant 3,794,117 - Knox , et al. February 26, 1 | 1974-02-26 |
Method Of Fracture Acidizing A Well Formation Grant 3,768,564 - Knox , et al. October 30, 1 | 1973-10-30 |
SCALE REMOVAL COMPOSITION AND METHOD USING SALT OF DIGLYCOLIC ACID AND BASE AT pH ABOVE 5 Grant 3,639,279 - Gardner , et al. February 1, 1 | 1972-02-01 |
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