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Patent applications and USPTO patent grants for Stegemoeller; Calvin.The latest application filed is for "centrifugal mixing system".
Patent | Date |
---|---|
Centrifugal mixing system Grant 8,840,298 - Stegemoeller , et al. September 23, 2 | 2014-09-23 |
Centrifugal Mixing System App 20100188926 - Stegemoeller; Calvin ;   et al. | 2010-07-29 |
Dust control system for transferring dry material used in subterranean wells Grant 7,703,518 - Phillippi , et al. April 27, 2 | 2010-04-27 |
Portable Well Treating Fluid Mixing System And Method App 20100025041 - Phillippi; Max ;   et al. | 2010-02-04 |
Closed Blending System App 20100027371 - Lucas; Bruce ;   et al. | 2010-02-04 |
Dust Control System For Transferring Dry Material Used In Subterranean Wells App 20080277121 - Phillippi; Max ;   et al. | 2008-11-13 |
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