PORTEC, INC.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B62D MOTOR VEHICLES; TRAILERS 190
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5413209 Live roller conveyor pulley for improving the training of a conveyor beltMar 08, 94May 09, 95[B65G]
RE30492 Reverse direction guidance system for lift truckApr 19, 79Jan 27, 81[B62D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0065,400 BALL TRANSFER DEVICEAbandonedSep 08, 09Mar 18, 10[B65G, F16C]
2010/0065,402 BELT CONVEYORAbandonedSep 04, 09Mar 18, 10[B65G]
2010/0012,469 CONVEYOR SYSTEMAbandonedJan 06, 09Jan 21, 10[B65G]
2009/0294,255 Motorized PulleyAbandonedDec 06, 05Dec 03, 09[B65G]
6050395 Knife edge converterExpiredApr 23, 98Apr 18, 00[B65G]
4923597 Portable screen with raising and levelling systemExpiredJan 13, 89May 08, 90[B07B]
4776736 Twin container hold downExpiredJun 01, 87Oct 11, 88[B61D, B60P]
D278171 Idler for a low profile tie downExpiredOct 01, 81Mar 26, 85[]
4437410 Pivotal slidable vehicle end enclosureExpiredOct 09, 81Mar 20, 84[B60J, B61D]
4397426 Shoe bracket assembly for vertical shaft impact crushing machinesExpiredMay 07, 81Aug 09, 83[B02C]
4263853 Rail car end door positioning keeper assemblyExpiredJan 15, 79Apr 28, 81[B60J, E05B, B61D]
4196804 Belt tightener for spiral conveyor beltExpiredJul 03, 78Apr 08, 80[B65G]
4182126 Fork lift hydraulic servo control valveExpiredSep 11, 78Jan 08, 80[F15B]

Top Inventors for This Owner

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