Inventor · disambiguated record
Leonard Matulewski
Also filed as: MATULEWSKI LEONARD
3 granted patents·159 citations·filing 1997–2000
77Inventor score
Technology areasH04M
Files withAT & T CORP3
Top patents by PatentIndex Score
3 records- 0183US6463139B1Combination pre-paid and calling cardAT & T CORP·Filed 2000·Granted Oct 8, 2002·44 cites·17 claims
- 0268US6137872ACombination pre-paid and calling cardAT & T CORP·Filed 1998·Granted Oct 24, 2000·52 cites·16 claims
- 0368US5946380ACommunications system and method with call expenditure controlAT & T CORP·Filed 1997·Granted Aug 31, 1999·63 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →