Keeper Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS347
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7641561 Dust cover for a steering shaftJan 14, 05Jan 05, 10[F16D]
7513507 Flexible boot for constant velocity universal jointSep 28, 05Apr 07, 09[F16J]
6702293 Seal member mounted between cylinder head cover and ignition plug tubeMar 08, 02Mar 09, 04[F16J]
5722669 Resin CVJ boot with distinct large and small crest portionsDec 20, 95Mar 03, 98[F16J]
5404906 Fuel tankDec 09, 93Apr 11, 95[F16K, B65B]
5236656 Method of injection blow molding synthetic resin bellows productSep 18, 91Aug 17, 93[B29C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0118,037 Dynamic DamperAbandonedJul 28, 09May 19, 11[F16F]
5234039 Sealing device for fuel supply port of fuel tank for use in vehiclesExpiredJul 16, 91Aug 10, 93[B60K, F16J]
5147494 Seal device for tire pressure-adjusting deviceExpiredJul 27, 90Sep 15, 92[F16K, B60C]
5085444 Dust seal for sliding type bushExpiredJun 05, 90Feb 04, 92[F16J]
4967609 Flexible bootExpiredMay 31, 89Nov 06, 90[F16J]
4820238 Universal joint having a flexible bootExpiredAug 03, 87Apr 11, 89[F16D]
4427206 Oil seal assembly with unbonded backup ringExpiredJun 13, 83Jan 24, 84[F16J]
4337953 Sealing device with seal lips forming V-shapeExpiredMar 07, 80Jul 06, 82[F16J]

Top Inventors for This Owner

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