F04B 1/22

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2023/0400,007 HYDRAULIC ASSEMBLY DEVICE, SYSTEM AND METHODAug 25, 23Dec 14, 23Not available
2022/0275,792 HYDRAULIC PUMP MOTORSep 17, 20Sep 01, 22Komatsu Ltd.
2021/0156,369 PISTON HYDRAULIC DEVICEApr 09, 19May 27, 21Not available
2019/0211,812 A HYDRAULIC DEVICE, A METHOD OF MANUFACTURING A HYDRAULIC DEVICE AND A GROUP OF HYDRAULIC DEVICESMay 17, 17Jul 11, 19Not available
2017/0016,432 PISTON PUMP AND VALVE PLATE OF PISTON PUMPJun 04, 15Jan 19, 17KYB CORPORATION
2016/0025,081 HYDRAULIC PUMP WITH DOUBLE DIRECTION OF ROTATIONMar 27, 14Jan 28, 16HYDRO LEDUC
2015/0300,333 Hydraulic Rotary MachineOct 11, 13Oct 22, 15Hitachi Construction Machinery Co., Ltd., TOKAI CARBON CO., LTD.,
2015/0075,158 Piston pumpSep 12, 14Mar 19, 15ULTRAFLEX S.P.A.
2015/0078,930 FLUID PRESSURE PUMPMar 26, 13Mar 19, 15MITSUBISHI HEAVY INDUSTRIES, LTD.
2015/0044,079 SLIDING MEMBERS AND PISTON PUMP/MOTORMar 15, 13Feb 12, 15KYB CORPORATION
2013/0052,041 PISTON PUMP WITH CAM ACTUATED VALVESAug 31, 11Feb 28, 13CATERPILLAR INC.
2011/0179,947 REMANUFACTURING HYDRAULIC PUMPSApr 11, 11Jul 28, 11CATERPILLAR INC.
2010/0135,827 TANDEM PISTON PUMPJul 31, 07Jun 03, 10KYB CORPORATION
2010/0107,866 Three speed floating cup hydraulic motorNov 04, 08May 06, 10CATERPILLAR INC.
2009/0290,997 Reduced flow pulsations in a tandem floating cup pump with an odd number of pistonsMay 23, 08Nov 26, 09CATERPILLAR INC.
2008/0295,682 HYDRAULIC PUMP END COVEROct 31, 07Dec 04, 08PARKER-HANNIFIN CORPORATION
2008/0138,225 Hydraulic Piston PumpFeb 08, 06Jun 12, 08KOMATSU LTD.