TWIN DISC, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B63H MARINE PROPULSION OR STEERING 931
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 784
 
  
 
F16H GEARING496
 
  
 
B60K ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES 390
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 268
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 2445
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 175
 
  
 
F03B MACHINES OR ENGINES FOR LIQUIDS 123

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9889918 Trimmable rudderJan 26, 16Feb 13, 18[B63H]
9732806 Fluid actuated over-center clutch for a PTOApr 23, 15Aug 15, 17[F16D]
9670972 Trimmed lock-up clutchApr 28, 14Jun 06, 17[G06F, F16D, F16H]
9242710 Trimmable rudderAug 29, 12Jan 26, 16[B63H]
9096299 Rooster tail suppression apparatusMar 17, 14Aug 04, 15[B63H, F03B]
8795008 Two-into-two or one hybrid power device for a marine vehicleApr 06, 11Aug 05, 14[B63H]
8696318 Stepped surface propellerMar 05, 10Apr 15, 14[B63H, F03B]
8678665 Bearing arrangement for heavy duty marine transmissionMar 08, 07Mar 25, 14[F16C, F16D]
8453819 Balanced clutch systemFeb 22, 10Jun 04, 13[F16D]
8393926 Hybrid marine power train systemMay 29, 09Mar 12, 13[B63H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0266,554 Tractor Mode Marine PropulsionAbandonedMar 19, 14Sep 24, 15[B63H]
2014/0227,099 Stepped Surface PropellerAbandonedApr 15, 14Aug 14, 14[F03B]
8668533 Waterjet propulsion system and method for a marine vehicleExpiredJul 08, 11Mar 11, 14[B63H]
8602193 Bearing arrangement for heavy duty transmissionExpiredOct 26, 09Dec 10, 13[F16C, F16H]
2011/0263,165 Electric Marine Surface DriveAbandonedApr 26, 10Oct 27, 11[B63H]
2005/0183,776 Pressure regulatorAbandonedFeb 23, 04Aug 25, 05[G05D]
6726511 Internally ported hydraulic cylinder assemblyExpiredSep 09, 02Apr 27, 04[B63H]
6390866 Hydraulic cylinder with anti-rotation mounting for piston rodExpiredFeb 01, 01May 21, 02[B63H]
5533603 Internally-actuating and self-adjusting PTO clutch assemblyExpiredMar 08, 95Jul 09, 96[F16D]
5456345 Self-adjusting clutch mechanismExpiredMar 23, 94Oct 10, 95[F16D]
5429220 Torque transfer system employing resilient drive ringExpiredJul 26, 93Jul 04, 95[F16D]
5333712 Synchronized clutchExpiredApr 14, 93Aug 02, 94[F16D]
5016724 Inter-axle differential having a friction-type biasing clutch and wheel slip sensing control means thereforExpiredAug 08, 89May 21, 91[B60K]
4836809 Control means for marine propulsion systemExpiredMar 11, 88Jun 06, 89[B63H]
4763765 Cone clutch transmissionExpiredApr 20, 87Aug 16, 88[F16D]
4734861 Electronic control for motor vehicle transmissionExpiredJul 11, 86Mar 29, 88[B60K]
4635495 Multi-speed reversible power transmissionExpiredOct 18, 85Jan 13, 87[F16H]
4549443 Multi-speed reversible transmission of countershaft constructionExpiredDec 07, 83Oct 29, 85[F16D, F16H]
4483684 Torsional impulse damper for direct connection to universal joint drive shaftExpiredAug 25, 83Nov 20, 84[F16D]
4459873 Marine propulsion systemExpiredFeb 22, 82Jul 17, 84[F16H]

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