FMTT, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6734778 Module for matrix transformers having a four turn secondary windingExpiredDec 19, 01May 11, 04[H01F]
6578253 Transformer and inductor modules having directly bonded terminals and heat-sink finsExpiredMay 02, 94Jun 17, 03[H01E]
5999078 Transformer and rectifier module with half-turn secondary windingsExpiredJun 08, 98Dec 07, 99[H01F]
5479146 Pot core matrix transformer having improved heat rejectionExpiredJul 21, 93Dec 26, 95[H01F]
5093646 High frequency matrix transformerExpiredMar 13, 89Mar 03, 92[H02M, H01F]
4942353 High frequency matrix transformer power converter moduleExpiredSep 29, 89Jul 17, 90[H01F]
4845606 High frequency matrix transformerExpiredApr 29, 88Jul 04, 89[H02M]
4665357 Flat matrix transformerExpiredFeb 04, 86May 12, 87[H01F]

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