Mannesmann Rexroth GmbH

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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
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 243
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 289
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172
 
  
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 198
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 126
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 159
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D464007 Control lever for vehiclesNov 20, 01Oct 08, 02[1216]
6000219 Charging valve arrangement to charge a storeMar 03, 98Dec 14, 99[F15B]
5662390 Method and appliance for controlling a power-brake valveApr 09, 93Sep 02, 97[B60T]
5628188 Torque control of hydrostatic machines via the pivot angle or the eccentricity of said machinesMar 15, 94May 13, 97[F04B, G05D, G01D]
5490383 Method of pressure controlling a hydrostatic machine having an adjustable delivery volumeAug 12, 94Feb 13, 96[F15B, F16D]
5326230 Closed loop control circuit for variable hydraulic pumpOct 23, 92Jul 05, 94[F04B]
5316943 Racemic conversion of using a transaminaseJun 19, 89May 31, 94[C12P]
5295663 Pressure control valveDec 28, 92Mar 22, 94[F16K]
5245826 Vibration suppression apparatus for hydraulic system with improved accumulator filing circuitAug 24, 92Sep 21, 93[F16D]
5222886 Cheek plate for a vane pumpMar 20, 92Jun 29, 93[F04C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6047732 Directional control valveExpiredApr 14, 98Apr 11, 00[F16K]
5857333 Control system for hydraulic power unitsExpiredAug 08, 97Jan 12, 99[F15B, F16D]
5852933 Hydraulic drives system for a pressExpiredJul 07, 97Dec 29, 98[F15B, B30B]
5829335 Control for hydraulic drive or actuatorExpiredDec 09, 96Nov 03, 98[F15B]
5726877 Method for the adaptive adjustment of the control parameters of an electro-hydraulic axis of motionExpiredNov 30, 94Mar 10, 98[G05B]
5724223 Control of a proportional valve using mains voltageExpiredMar 20, 95Mar 03, 98[H01F]
5716051 One-piece seal with fastening section and sealing sectionExpiredJul 24, 97Feb 10, 98[F16J]
5638678 Hydraulic drive systemExpiredJun 09, 95Jun 17, 97[F16Q]
5528911 Hydraulic control apparatus for a plurality of usersExpiredApr 02, 93Jun 25, 96[F16D]
5499525 Hydraulic drive for a sheet metal forming pressExpiredMay 20, 94Mar 19, 96[B21J]
5469704 Hydraulic drive apparatus comprising a cylinderExpiredNov 18, 93Nov 28, 95[F16D]
5410946 Hydraulic actuatorExpiredOct 21, 92May 02, 95[F01B, B30B, F16J]
5391002 Hydrostatic radial pocket bearing for a servo cylinderExpiredJun 09, 94Feb 21, 95[F16C]
5341311 Method and apparatus for limiting the capacity of a hydrostatic machineExpiredApr 02, 92Aug 23, 94[F04B]
5337783 Poppet valveExpiredAug 24, 93Aug 16, 94[F16K]
5333450 Apparatus for adjusting the working fluid pressureExpiredDec 07, 92Aug 02, 94[F16D]
5332371 Hydraulic systemExpiredFeb 04, 93Jul 26, 94[F04B]
5315828 Valve assembly for load independent control of multiple hydraulic loadsExpiredOct 30, 92May 31, 94[F16D]
5315829 Hydraulic system for hydraulic operatorsExpiredDec 14, 92May 31, 94[F16D]
5314118 Piezoelectric controllable nozzle resistance for hydraulic apparatusExpiredFeb 13, 92May 24, 94[F16K]

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