F04D 1/08

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9677560 Centrifugal pump impeller support system and apparatusJul 10, 15Jun 13, 17SUMMIT ESP, LLC
9133849 Impeller vane with leading edge enhancementNov 09, 12Sep 15, 15BAKER HUGHES INCORPORATED
9080572 Centrifugal pump with secondary impeller and dual outletsDec 21, 12Jul 14, 15Not available
9010353 Gas lift valve having edge-welded bellows and captive sliding sealAug 04, 11Apr 21, 15WEATHERFORD TECHNOLOGY HOLDINGS, LLC
8777554 Intermediate fan stageAug 27, 10Jul 15, 14GENERAL ELECTRIC COMPANY
8641364 Blade for an impeller wheelJan 23, 07Feb 04, 14Bew Betriebs und Entwicklung von Wasserkraftanlagen GmbH
8382423 Micro-scale and meso-scale hydraulically or pneumatically powered devices capable of rotational motionJul 07, 08Feb 26, 13MICROFABRICA INC.
7234915 Sluice feederMar 04, 03Jun 26, 07Not available
7175383 Regenerative fluid pump and stator for the sameJul 04, 03Feb 13, 07EDWARDS LIMITED
6358412 Feed system for fuelJul 21, 00Mar 19, 02ROBERT BOSCH GMBH
5501574 Blood pumpNov 10, 94Mar 26, 96JOSTRA BENTLEY INC.
5385445 Centrifugal pumpDec 03, 93Jan 31, 95FLOWSERVE MANAGEMENT COMPANY
5383764 Diffusor pump having diffusor bladesMar 11, 93Jan 24, 95NIKKISO COMPANY LIMITED
5368438 Blood pumpJun 28, 93Nov 29, 94JOSTRA BENTLEY INC.
5344285 Centrifugal pump with monolithic diffuser and return vane channel ring memberOct 04, 93Sep 06, 94FLOWSERVE MANAGEMENT COMPANY
5201633 Vertical centrifugal hydraulic pump assemblyApr 23, 91Apr 13, 93POMPES SALMSON, Salmson; Pompes,
4684317 High-vacuum molecular pumpNov 13, 84Aug 04, 87Ultra-Centrifuge Nederland N.V.
4678405 Low net positive suction head pumpsFeb 14, 84Jul 07, 87WESTINGHOUSE ELECTRIC COMPANY LLC, Westinghouse Electric Corp.,
4204810 Bi-directional pumpNov 03, 76May 27, 80TOKHEIM CORPORATION