MANNESMANN REXROTH AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 639
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING469
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 480
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 359
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 388
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 222
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 245
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172
 
  
 
B66B ELEVATORS; ESCALATORS OR MOVING WALKWAYS 127
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 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
7090475 Hydraulic control circuit for a hydraulic engine with at least two speedsFeb 15, 01Aug 15, 06[F04B]
6367365 Hydraulic circuitJun 04, 01Apr 09, 02[F15B, F16D]
6289675 Hydraulic control circuit for a priority and for a secondary hydraulic consumerJul 27, 99Sep 18, 01[F15B]
6250202 Hydraulic control deviceOct 01, 99Jun 26, 01[F15B]
6199585 Directional-control valveOct 07, 99Mar 13, 01[F16K, F15B]
6179393 Distributing valve for load-independent control of a hydraulic consumer with regards to direction and speedJun 09, 99Jan 30, 01[B60T]
6146113 Compact hydraulic unitJun 10, 98Nov 14, 00[F04B]
6095177 Precontrolled 3-way pressure control valveOct 02, 98Aug 01, 00[G05D]
6068021 Directional control valveSep 21, 98May 30, 00[G05D]
6038858 Inching and braking system with interconnected brake and inching valvesApr 16, 98Mar 21, 00[F16D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6932113 Pilot deviceExpiredSep 25, 00Aug 23, 05[F15B]
6863507 Generic free-piston engine with transformer valve assembly for reducing throttling lossesExpiredJun 26, 02Mar 08, 05[F04B]
6499295 Hydro-transformerExpiredApr 09, 01Dec 31, 02[F16D]
6499296 Hydraulic circuitExpiredFeb 15, 01Dec 31, 02[F16D]
6494127 Radial piston engine with guide rollersExpiredNov 20, 00Dec 17, 02[F01B]
6439364 Inching braking systemExpiredOct 25, 00Aug 27, 02[B60K, B60T]
6419460 Driving mechanism for a pumpExpiredJun 12, 00Jul 16, 02[F04B]
6408977 Hydraulic steering system for a vehicle, especially for a mobile working machineExpiredOct 19, 00Jun 25, 02[B62D]
6370874 Hydraulic control device for a mobile machine, especially for a wheel loaderExpiredFeb 10, 00Apr 16, 02[F16D]
6351944 Hydraulic control mechanism for a mobile machine tool, especially a wheel loader, for damping longitudinal oscillationsExpiredJun 09, 00Mar 05, 02[F16D]
6347571 Radial piston motor with friction brakeExpiredJun 12, 00Feb 19, 02[F04B, F01B]
6343235 PID controller with protection of the integrator against saturation upon a rapid change of the reference variableExpiredJan 14, 99Jan 29, 02[G05B]
6302012 Arrangement for the supply of pressure medium to a hydraulic or pneumatic cylinderExpiredNov 12, 99Oct 16, 01[F15B]
6260355 Hydraulic control system for a mobile work machine, especially a wheel loaderExpiredSep 16, 99Jul 17, 01[F16D]
6223773 Check valve assemblyExpiredMay 19, 99May 01, 01[F15B]
6209966 Electrically controlled braking system for a wheeled vehicleExpiredAug 31, 99Apr 03, 01[B60T]
6205933 Support for a vehicle body on a chassisExpiredApr 30, 98Mar 27, 01[B61F]
6202774 Transport module for the moving of heavy loadsExpiredNov 11, 98Mar 20, 01[B62D]
6196247 Valve assembly and method for actuation of such a valve assemblyExpiredMay 19, 99Mar 06, 01[F16B]
6192928 Valve assemblyExpiredMay 19, 99Feb 27, 01[F15B]

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