Inventor

PIRKL KEITH A

US8 patents

⚠️ This page may combine multiple inventors who share the name “PIRKL KEITH A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EFUSION INC

4 patents

US6199096B1Mar 6, 2001

Method and apparatus for synchronizing information browsing among multiple systems

EFUSION INC147 citations98

US6026087AFeb 15, 2000

Method and apparatus for establishing a voice call to a PSTN extension for a networked client computer

EFUSION INC333 citations98

US5889774AMar 30, 1999

Method and apparatus for selecting an internet/PSTN changeover server for a packet based phone call

EFUSION INC405 citations98

US5987102ANov 16, 1999

Method and apparatus for bridging a voice call including selective provision of information in non-audio to the caller

EFUSION INC127 citations97

ITXC INC

3 patents

US6304637B1Oct 16, 2001

Method and apparatus for establishing and facilitating a direct quality voice call to a telephone extension on behalf of a client computer

ITXC INC131 citations96

US6661878B1Dec 9, 2003

Method and apparatus for establishing a voice call to a PSTN extension for a networked client computer

ITXC INC62 citations95

US6628760B2Sep 30, 2003

Method and apparatus for selecting an internet/PSTN changeover server for a packet based phone call

ITXC INC39 citations95

ITXC IP HOLDINGS SARL

1 patent

US7248675B2Jul 24, 2007

Method and apparatus for establishing a voice call to a PSTN extension for a networked client computer

ITXC IP HOLDINGS SARL20 citations92