Elephant Chain Block Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B66D CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS 157
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 388
 
  
 
C22C ALLOYS 171

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D459854 Lifting apparatusAug 15, 00Jul 02, 02[1205]
D459855 Lifting hookAug 15, 00Jul 02, 02[1205]
6224039 Chain blockOct 19, 99May 01, 01[B66D]
6062543 Hand operated chain block having an improved load chain deviceMay 04, 98May 16, 00[B66D]
D424269 Wheel cover for chain blockSep 01, 98May 02, 00[1205]
6032928 Hand operated chain block having improved hand wheelMay 04, 98Mar 07, 00[B66D]
D421172 Hoist body of lever typeDec 08, 98Feb 22, 00[1205]
6007054 Hand operated chain block having an improved coverMay 04, 98Dec 28, 99[B66D]
5997662 Surface-hardened chain linkDec 18, 97Dec 07, 99[C22C]
5971364 Hoist and traction apparatusOct 20, 98Oct 26, 99[B66D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6554255 Lifting gearExpiredMay 02, 02Apr 29, 03[B66D]
6406001 Chain lever hoistExpiredNov 18, 99Jun 18, 02[B66D]
6390523 Belt hoistExpiredMar 09, 01May 21, 02[B66C]
6371543 SlingExpiredAug 15, 00Apr 16, 02[B66C]
2001/0042,031 Electronic catalog recording medium and electronic catalog deviceAbandonedApr 19, 01Nov 15, 01[G06F]
6241214 Structure supporting apparatusExpiredSep 13, 99Jun 05, 01[B66F]
6142448 Belt hoistExpiredOct 28, 99Nov 07, 00[B66D]
6030015 Belt hoist having improved belt-hook assemblyExpiredJul 14, 97Feb 29, 00[B66D]
6003843 Belt hoistExpiredJul 11, 97Dec 21, 99[B66D]
5957433 Belt hoist including a winding member with an improved belt fixing surfaceExpiredJul 14, 97Sep 28, 99[B66D]
D377555 Lever operated hoistExpiredDec 22, 94Jan 21, 97[]
5586751 Manual chain blockExpiredSep 08, 94Dec 24, 96[B66D]
5586752 Load chain retainment for a chain blockExpiredJul 05, 94Dec 24, 96[B66D]
5566925 Manual chain blockExpiredJun 27, 94Oct 22, 96[B66D]
5556078 Manual hoist and traction machineExpiredDec 13, 93Sep 17, 96[B60T, F16D, B66D]
5544863 Manual chain blockExpiredJun 27, 94Aug 13, 96[B66D]
5401216 Belt tightening deviceExpiredJul 06, 93Mar 28, 95[F16H]
D347508 Main body of lever-type winding machineExpiredJun 10, 93May 31, 94[]
D341016 Over-load cutout device for hand-operated, hoisting and pulling machineExpiredDec 30, 91Nov 02, 93[]
D307659 Lever hoistExpiredJul 10, 87May 01, 90[]

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