HYDRO LEDUC

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 260
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 137
 
  
 
E21B EARTH OR ROCK DRILLING 195

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0025,081 HYDRAULIC PUMP WITH DOUBLE DIRECTION OF ROTATIONMar 27, 14Jan 28, 16[F04B]

Recent Patents

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0285,042 PUMPING DEVICEAbandonedApr 02, 15Oct 08, 15[F04B, E21B]
2015/0110,656 HYDRAULIC PISTON PUMP HAVING DISTRIBUTION THROUGH A BI-DIRECTIONAL PORT PLATEAbandonedOct 22, 14Apr 23, 15[F04B]
2015/0059,326 INTERNALLY DRAINED HYDRAULIC MOTORAbandonedMar 08, 13Mar 05, 15[F15B]
2014/0003,970 AXIAL PISTONS HYDRAULIC PUMP ABLE TO FUNCTION IN ONE OR THE OTHER ROTATING DIRECTIONAbandonedJun 21, 13Jan 02, 14[F04B]
2013/0336,815 HYDRAULIC AXIAL PISTON PUMP ABLE TO OPERATE IN BOTH DIRECTIONSAbandonedMay 30, 13Dec 19, 13[F04B]
2013/0192,898 HYDRAULIC BRAKE FOR DRILLING-BITAbandonedJan 25, 13Aug 01, 13[E21B]
7779745 Automatic-locking hydraulic jackExpiredAug 07, 07Aug 24, 10[F15B]
2008/0025,850 Spring barrel pumpsAbandonedJul 26, 07Jan 31, 08[F04B]
7178449 Hydraulic device driving a rotating receiverExpiredJul 11, 05Feb 20, 07[F01B]

Top Inventors for This Owner

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