Sunwa Sharyo Manufacturing Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61G TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS 135
 
  
 
B62B HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES 127

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5197558 Stair-climbing wheelchair carrierJul 30, 91Mar 30, 93[A61G, B62B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5676215 Stair-climbing crawler transporterExpiredAug 16, 95Oct 14, 97[B62D]
4898256 Stair-climbing wheelchair carrier with crawlersExpiredOct 19, 88Feb 06, 90[B62D, B62B]
4771839 Stair-climbing wheelchair carrierExpiredJun 01, 87Sep 20, 88[B62B]
4688813 Carrier for rescuing patientsExpiredMar 05, 86Aug 25, 87[B62B]
4681330 Hand truckExpiredDec 11, 85Jul 21, 87[B62B]
4585241 Carrier for rescuing patientsExpiredDec 27, 83Apr 29, 86[B62B]
4566550 Stair-climbing wheelchair carrierExpiredMay 03, 84Jan 28, 86[B62B]
4432426 Stair climbing wheelchair carrierExpiredApr 20, 81Feb 21, 84[B62B]

Top Inventors for This Owner

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