Inventor · disambiguated record
Keith A. Pirkl
Also filed as: PIRKL KEITH A
8 granted patents·1 pending application·1,264 citations·filing 1997–2003
92Inventor score
Top patents by PatentIndex Score
9 records- 0195US6026087AMethod and apparatus for establishing a voice call to a PSTN extension for a networked client computerEFUSION INC·Filed 1997·Granted Feb 15, 2000·333 cites·31 claims
- 0295US5889774AMethod and apparatus for selecting an internet/PSTN changeover server for a packet based phone callEFUSION INC·Filed 1997·Granted Mar 30, 1999·405 cites·33 claims
- 0387US6628760B2Method and apparatus for selecting an internet/PSTN changeover server for a packet based phone callITXC INC·Filed 2001·Granted Sep 30, 2003·39 cites·33 claims
- 0485US5987102AMethod and apparatus for bridging a voice call including selective provision of information in non-audio to the callerEFUSION INC·Filed 1997·Granted Nov 16, 1999·127 cites·32 claims
- 0583US6199096B1Method and apparatus for synchronizing information browsing among multiple systemsEFUSION INC·Filed 1997·Granted Mar 6, 2001·147 cites·18 claims
- 0680US6304637B1Method and apparatus for establishing and facilitating a direct quality voice call to a telephone extension on behalf of a client computerITXC INC·Filed 1997·Granted Oct 16, 2001·131 cites·18 claims
- 0779US7248675B2Method and apparatus for establishing a voice call to a PSTN extension for a networked client computerITXC IP HOLDINGS SARL·Filed 2003·Granted Jul 24, 2007·20 cites·8 claims
- 0874US6661878B1Method and apparatus for establishing a voice call to a PSTN extension for a networked client computerITXC INC·Filed 1999·Granted Dec 9, 2003·62 cites·14 claims
- 0929US2002071423A1Method and apparatus for value added content deliveryFiled 1997·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →