Inventor · disambiguated record

Edward K. Shum

Also filed as: HEAD LEON E · SHUM EDWARD K

2 granted patents·22 citations·filing 1978–1981

59Inventor score

Technology areasG11B

Files withBELL & HOWELL CO1 PRECISION DATA INC1

Top patents by PatentIndex Score

2 records

0159US4353099ATape-recorded signal recovery method and apparatusPRECISION DATA INC·Filed 1981·Granted Oct 5, 1982·16 cites·12 claims
0243US4213160AMethods and apparatus for driving information carrier tapeBELL & HOWELL CO·Filed 1978·Granted Jul 15, 1980·6 cites·44 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →