SAUER INC.

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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 161

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE30226 Torque limiting controlJul 11, 77Mar 11, 80[F04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5979271 Axle driving apparatusExpiredApr 22, 99Nov 09, 99[F16D, F16H]
5118079 Removable fluid seal and methodExpiredJul 12, 91Jun 02, 92[F16K]
5103671 Hydrostatic test standExpiredNov 28, 90Apr 14, 92[G01M]
4935426 N,N'-disubstituted piperazinesExpiredFeb 08, 89Jun 19, 90[A61K, C07D]
4864994 Engine override controlsExpiredNov 16, 81Sep 12, 89[F02M]
4791549 Boom control systemExpiredNov 20, 87Dec 13, 88[G06F, E02F]
4745746 Power control for a hydrostatic transmissionExpiredOct 06, 87May 24, 88[F16D]
4739616 Summing pressure compensation controlExpiredDec 13, 85Apr 26, 88[F15B]
4704866 Automatic travel speed control for a harvesting machineExpiredMay 02, 85Nov 10, 87[F16H]
4694648 Anti-plug controlExpiredMar 20, 85Sep 22, 87[F16D]
4627237 Hydrostatic transmission with fixed fluid capacity ratio between pump and motorExpiredMar 30, 84Dec 09, 86[F16D]
4614992 Actuator driver with open-circuit and stray ground protectionExpiredAug 23, 85Sep 30, 86[H01H]
4578948 Reversible flow vane pump with improved portingExpiredNov 01, 84Apr 01, 86[F04B, F16D, F04C]
4512723 Pressure limiterExpiredOct 17, 83Apr 23, 85[F04B]
4492245 Nozzle and flapper with squeeze film dampingExpiredSep 18, 82Jan 08, 85[F15B, F16F]
4483663 Output speed droop compensating pump controlExpiredAug 23, 82Nov 20, 84[F04B]
4478041 Hydraulic motor controlExpiredAug 20, 81Oct 23, 84[F16H]
4466337 Electro hydraulic control with dead zone compensationExpiredJan 25, 82Aug 21, 84[F15B]
4462210 Input torque control for a variable displacement hydraulic transmissionExpiredJul 31, 81Jul 31, 84[F16H]
4461147 Variable displacement hydraulic control with overrideExpiredOct 27, 81Jul 24, 84[F16D]

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