EJ Systems, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3156
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 3108

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5315240 Thermal control system for a semi-conductor burn-inOct 27, 92May 24, 94[H05B, G01R]
5164661 Thermal control system for a semi-conductor burn-inMay 31, 91Nov 17, 92[H05B, G01R]
5126656 Burn-in towerMay 31, 91Jun 30, 92[H05B, G01R]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5847293 Test handler for DUT'sExpiredDec 04, 95Dec 08, 98[G01R]
5420521 Burn-in moduleExpiredMar 19, 93May 30, 95[H05B, G01R]

Top Inventors for This Owner

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