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Class Information
Number: 475/221
Name: Planetary gear transmission systems or components > Differential planetary gearing > Differential or nondifferential planetary combined with differential (e.g., two differentials)
Description: Subject matter which includes at least two differential transmissions* or which includes a differential transmission* and another planetary gear transmission.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8678968 Drive unit, particularly rear drive unit, for an all-wheel drive of a motor vehicle Mar. 25, 2014
8668615 Drive assembly with hydraulic actuating mechanism Mar. 11, 2014
8663051 Axle assembly with torque distribution drive mechanism Mar. 4, 2014
8651994 Drive axle assembly and disengagement system Feb. 18, 2014
8622864 Dual differential semi-active actuator fit for interaction tasks and fast motion Jan. 7, 2014
8622867 Differential with torque distribution Jan. 7, 2014
8617024 Axle final drive assembly Dec. 31, 2013
8608611 AWD vehicle with disconnect system Dec. 17, 2013
8597150 Disconnectable driveline for all-wheel drive vehicle Dec. 3, 2013
8579751 Hybrid powertrain with layshaft transmission and electric torque converter and method of controlling same Nov. 12, 2013
8562476 Manual transmission using chain and planetary gear set as final drive Oct. 22, 2013
8562479 Tandem axle having two drivable axles and a drivetrain which can be partially disconnected Oct. 22, 2013
8550950 Planetary reduction gearbox Oct. 8, 2013
8544588 Power takeoff for all-wheel-drive systems Oct. 1, 2013
8523727 Multi ratio drive Sep. 3, 2013
8523738 Method of shifting a tandem drive axle having an inter-axle differential Sep. 3, 2013
8506439 Axle drive device for an axle of a motor vehicle, as well as motor vehicle Aug. 13, 2013
8500594 Differential assembly and method for manufacturing same Aug. 6, 2013
8469854 Disconnectable driveline for all-wheel drive vehicle Jun. 25, 2013
8419582 Dual-clutch group transmission and method for actuating a dual-clutch group transmission Apr. 16, 2013
8403796 Drive force adjustment apparatus Mar. 26, 2013
8403798 Final drive mechanism for a transmission Mar. 26, 2013
8398520 Drive axle assembly and disengagement system Mar. 19, 2013
8388486 AWD vehicle with active disconnect coupling having multi-stage ball ramp Mar. 5, 2013
8348800 Vehicle power transmission device Jan. 8, 2013
8323142 Multi-speed transmission Dec. 4, 2012
8287416 Eight-speed planetary layshaft transmission Oct. 16, 2012
8256558 Differential system Sep. 4, 2012
8246502 Continuous variable transmission assembly Aug. 21, 2012
8214117 Driving force controlling apparatus of vehicle Jul. 3, 2012
8202187 Crank-CVT transmission Jun. 19, 2012
8182386 Transmission device comprising at least two output shafts May. 22, 2012
8177672 Driving-force transmitting apparatus for four-wheel-drive vehicle May. 15, 2012
8152678 Hybrid differential gear device, differential case therefor and assembling method of differential case Apr. 10, 2012
8152679 Rotary units, rotary mechanisms, and related applications Apr. 10, 2012
8083625 Driving force transmission device and image recording apparatus having the same Dec. 27, 2011
8016576 Vehicle transmission with fluid pump having a recirculation circuit Sep. 13, 2011
8012057 Drive device for motor vehicles Sep. 6, 2011
8007391 Differential apparatus for vehicle Aug. 30, 2011
7993234 Transmission and transport device including train using the transmission Aug. 9, 2011
7988583 Final reduction gear device Aug. 2, 2011
7918757 Drive unit connected to a transmission output for producing forward and reverse drive Apr. 5, 2011
7867125 Rear wheel drive apparatus for four wheel drive (4WD) hybrid electric vehicle Jan. 11, 2011
7828686 Yaw assembly for a rotatable system and method of assembling the same Nov. 9, 2010
7784731 Transmission device for a twin-rotor helicopter Aug. 31, 2010
7766780 Continuously variable transmission Aug. 3, 2010
7749124 Vehicle differential gear device, vehicle combined differential gear device and vehicle differential case Jul. 6, 2010
7686728 Mechanical adapter assembly Mar. 30, 2010
7658692 Double differential assembly for a motor vehicle driven by a plurality of axles Feb. 9, 2010
7637831 Power transmission mechanism of model vehicle Dec. 29, 2009

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