Inventor · disambiguated record

Michael D. Dunham, Sr.

Also filed as: DUNHAM MICHAEL D · DUNHAM SR MICHAEL D

2 granted patents·326 citations·filing 1984–1993

71Inventor score

Technology areasA47J G06F

Files withEFFECTIVE SECURITY SYSTEMS INC1 LETICA CORP1

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2 records

0189US4791565AApparatus for controlling the use of computer softwareEFFECTIVE SECURITY SYSTEMS INC·Filed 1984·Granted Dec 13, 1988·280 cites·24 claims
0273US5402908ADivided containerLETICA CORP·Filed 1993·Granted Apr 4, 1995·46 cites·9 claims

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