Heng Kuo Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING237
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8863357 Adjustable door closerMay 08, 13Oct 21, 14[E05F]
8739949 Brake master cylinderDec 16, 10Jun 03, 14[B60T]
8181311 Adjustable hinged door closerAug 07, 09May 22, 12[E05F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0034,535 Door closerAbandonedJul 20, 06Feb 14, 08[E05F]
2004/0088,822 Hydraulic door closerAbandonedNov 05, 03May 13, 04[E05F]
2003/0070,255 Hydraulic door closerAbandonedOct 16, 01Apr 17, 03[E05F]
6493904 Door closerExpiredOct 02, 00Dec 17, 02[E05F]

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