Inventor
TAMASI MARK
US21 patents
⚠️ This page may combine multiple inventors who share the name “TAMASI MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SBC TECHN RES INC
12 patentsUS6330324B1Dec 11, 2001
Geographical call routing for a non-emergency calling service
SBC TECHN RES INC77 citations96
US7054432B2May 30, 2006
Geographical call routing for a non-emergency calling service
SBC TECHN RES INC27 citations95
US6718028B2Apr 6, 2004
System and method for forwarding call from disconnected telephone number to new telephone number
SBC TECHN RES INC32 citations95
US6563917B2May 13, 2003
Geographical call routing for a non-emergency calling service
SBC TECHN RES INC40 citations95
US6526136B2Feb 25, 2003
System and computer program for routing a dedicated number through alternate telephone carriers
SBC TECHN RES INC39 citations95
US6442259B2Aug 27, 2002
System and method for forwarding call from disconnected telephone number to new telephone number
SBC TECHN RES INC36 citations95
US6304641B1Oct 16, 2001
System and method for forwarding call from disconnected telephone number to new telephone number
SBC TECHN RES INC35 citations95
US6108408AAug 22, 2000
Apparatus and method for routing a dedicated number through alternate telephone carriers
SBC TECHN RES INC70 citations94
US6724882B2Apr 20, 2004
Geographical call routing for a non-emergency calling service
SBC TECHN RES INC13 citations92
US6088433AJul 11, 2000
System and method for forwarding call from disconnected telephone number to new telephone number
SBC TECHN RES INC31 citations92
US6292552B1Sep 18, 2001
Apparatus and method for routing a dedicated number through alternate telephone carriers
SBC TECHN RES INC8 citations72
US7206398B2Apr 17, 2007
System and method for forwarding call from disconnected telephone number to new telephone number
SBC TECHN RES INC3 citations62
AT & T LABS INC
7 patentsUS7203302B2Apr 10, 2007
Geographical call routing for a non-emergency calling service
AT & T LABS INC17 citations92
US7653194B2Jan 26, 2010
Geographical call routing for a non-emergency calling service
AT & T LABS INC3 citations73
US7443975B2Oct 28, 2008
Geographical call routing for a non-emergency calling service
AT & T LABS INC5 citations73
US7292688B2Nov 6, 2007
Geographical call routing for a non-emergency calling service
AT & T LABS INC7 citations73
US7295665B2Nov 13, 2007
Method and system for routing a communication through an alternate carrier
AT & T LABS INC5 citations72
US7853003B2Dec 14, 2010
Geographical call routing for a non-emergency calling service
AT & T LABS INC2 citations62
US7983409B2Jul 19, 2011
Geographical call routing for a non-emergency calling service
AT & T LABS INC0 citations51