Caterpillar Industrial Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 285
 
  
 
B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD 122

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5239242 Motor direction contactor switching controlAug 30, 91Aug 24, 93[H02P]
5177419 Apparatus for controlling a load lifting element of a vehicle in response to the wearing of a motor brushMar 27, 91Jan 05, 93[H02P]
5147171 Side shift carriage for a lift mastJul 25, 91Sep 15, 92[B66F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5190436 Carriage assembly having side shiftable and adjustable forksExpiredJun 06, 91Mar 02, 93[B66F]
5142435 Filter capacitor precharge apparatusExpiredJun 04, 90Aug 25, 92[H01H]
5088880 Fluid operated fork positioning control systemExpiredDec 03, 90Feb 18, 92[B66F]
5084658 Motor speed control system for an electrically powered vehicleExpiredMar 27, 91Jan 28, 92[H02P]
5055961 Flyback current dampening apparatusExpiredNov 06, 89Oct 08, 91[H01H]
5052881 Bearing mounting arrangement for a lift mastExpiredNov 28, 90Oct 01, 91[B60P]
D316468 Telescopic material handling vehicleExpiredApr 29, 88Apr 23, 91[]
4995469 Operator's station mounting arrangement and methodExpiredSep 25, 89Feb 26, 91[B62D]
4983094 Load lifting attachmentExpiredJul 18, 86Jan 08, 91[B66C]
4944357 Power transferring arrangementExpiredApr 27, 89Jul 31, 90[B60T]
4934478 Contact sensing apparatus and methodExpiredFeb 10, 86Jun 19, 90[B60T]
4903054 Obstacle detection systemExpiredSep 23, 88Feb 20, 90[G01N]
4896748 Full free lift mast assemblyExpiredMay 27, 88Jan 30, 90[B66B]
4897882 Motor control apparatus and methodExpiredMar 10, 89Jan 30, 90[H02P]
4879623 Voltage transientsExpiredDec 02, 85Nov 07, 89[H02H]
4861220 Load positioning assembly and methodExpiredAug 23, 88Aug 29, 89[B60P]
4849731 Scanning obstacle detection apparatusExpiredJul 14, 88Jul 18, 89[G08G, B60Q]
4823901 Apparatus and method for detecting faults in an obstacle detection systemExpiredJul 22, 88Apr 25, 89[B60T]
4807714 Hitch assembly and methodExpiredAug 18, 87Feb 28, 89[B60D, B62D]
4792995 Bidirectional roller deck control for a self guided vehicleExpiredAug 19, 87Dec 20, 88[H04B]

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