Inventor · disambiguated record

Peter C. Acker

Also filed as: ACKER PETER C

1 granted patent·120 citations·filing 1999–1999

54Inventor score

Technology areasG09B

Files withMICROSOFT CORP1

Top patents by PatentIndex Score

1 record

0177US6234802B1Virtual challenge system and method for teaching a languageMICROSOFT CORP·Filed 1999·Granted May 22, 2001·120 cites·21 claims

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