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Patent applications and USPTO patent grants for DAVIS; Jondahl.The latest application filed is for "proppants and methods of making and use thereof".
Patent | Date |
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Proppants And Methods Of Making And Use Thereof App 20200377789 - BOUTELLE; Tonia ;   et al. | 2020-12-03 |
Rare earth element compositions obtained from particulate material comprising kaolin and methods for obtaining such compositions Grant 9,982,324 - Davis , et al. May 29, 2 | 2018-05-29 |
Method For Calibrating Apparatus For Measuring Shape Factor App 20170010198 - PRUETT; Robert J. ;   et al. | 2017-01-12 |
Rare Earth Element Compositions Obtained from Particulate Material Comprising Kaolinite and Methods for Obtaining Rare Earth Element Compositions from Particulate Material Comprising Kaolinite App 20150176105 - Davis; Jondahl ;   et al. | 2015-06-25 |
Method For Calibrating Apparatus For Measuring Shape Factor App 20130028042 - Pruett; Robert J. ;   et al. | 2013-01-31 |
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