CATERPILLAR TRACTOR CO., A CORP. OF CALIF.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02D CONTROLLING COMBUSTION ENGINES 172
 
  
 
F16H GEARING199

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE30981 Transmission devicesJun 13, 79Jun 29, 82[F16H]
T998002 Governor dual power setting selection controlOct 19, 79Sep 02, 80[F02D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4696409 Vented fuel tank cap assemblyExpiredJun 13, 86Sep 29, 87[B65D]
4661042 Coaxial turbomachineExpiredJun 18, 84Apr 28, 87[F04D]
4650207 Pin retainer assemblyExpiredMar 19, 86Mar 17, 87[B60D]
4620560 Modulating relief valve with dual functioning load pistonExpiredMay 06, 85Nov 04, 86[F16K]
4612767 Exhaust manifold shieldExpiredMar 01, 85Sep 23, 86[F01N]
4522079 Continuously variable transmission unitExpiredDec 23, 81Jun 11, 85[F16H]
4454782 Torque transmitting body for traction drive transmissions and normal friction force developing methodExpiredDec 23, 81Jun 19, 84[F16H]
4378708 Normal friction force developing system for traction drive transmissionsExpiredDec 18, 80Apr 05, 83[F16H]
4372156 Method and apparatus for determining cylinder liner projectionExpiredFeb 17, 81Feb 08, 83[B23P, G01M, F02F]
4369667 Traction surface cooling method and apparatusExpiredJul 10, 81Jan 25, 83[F16H]
4351533 Face seal with rotatable seal ringExpiredJun 05, 81Sep 28, 82[F16J]
4345772 Constant strain boot sealExpiredJan 26, 81Aug 24, 82[F16J]
4337932 Safety device for a workpiece holderExpiredJun 25, 80Jul 06, 82[B23Q]
4335127 Piperidinylalkyl quinazoline compounds, composition and method of useExpiredOct 12, 79Jun 15, 82[A61K, C07D]
4296647 Differential transmission drive unitExpiredMay 30, 79Oct 27, 81[F16H]
4280369 Ball/ramp system for torque transmissionExpiredJan 22, 79Jul 28, 81[F16H]
4277982 Torque transmitting body for traction drive transmissions and normal friction force developing methodExpiredSep 21, 79Jul 14, 81[F16H]
4258581 Counterbalancing system for nutational traction drive transmissionsExpiredSep 21, 79Mar 31, 81[F16H]
4238896 Cutting edge assembly for a loader bucketExpiredAug 24, 79Dec 16, 80[E02F]
4238976 Infinitely variable power transmission and systemExpiredOct 19, 78Dec 16, 80[F16H]

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