Inventor · disambiguated record

John M. Efseaff

Also filed as: EFSEAFF JOHN M

1 granted patent·9 citations·filing 2002–2002

31Inventor score

Technology areasG01S

Files withMAGELLAN CORP1

Top patents by PatentIndex Score

1 record

0142US6691031B2Method and apparatus for substituting sensor data for satellite signal in GPS receiverMAGELLAN CORP·Filed 2002·Granted Feb 10, 2004·9 cites·33 claims

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John M. Efseaff — Patent Inventor | PatentIndex