SPAN, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5349282 Battery charging and monitoring systemApr 23, 91Sep 20, 94[H02J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7130190 Computer servicing cartExpiredNov 18, 03Oct 31, 06[G06F]
2006/0238,169 Temperature controlled current regulatorAbandonedApr 22, 05Oct 26, 06[H02J]
6373676 Magnetic floatation control systemExpiredOct 01, 99Apr 16, 02[H01H]
5563496 Battery monitoring and charging control unitExpiredSep 14, 94Oct 08, 96[H02J]
5198743 Battery charger with microprocessor controlExpiredDec 11, 90Mar 30, 93[H02J]
4935906 Scanning sonar systemExpiredJan 04, 88Jun 19, 90[G01S]
4918368 System for charging batteries and measuring capacities and efficiencies thereofExpiredFeb 29, 88Apr 17, 90[H02J]
4746854 Battery charging system with microprocessor control of voltage and current monitoring and control operationsExpiredOct 29, 86May 24, 88[H02J]

Top Inventors for This Owner

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