Inventor
MARSHALL WILLIAM TODD
US35 patents
⚠️ This page may combine multiple inventors who share the name “MARSHALL WILLIAM TODD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AT & T CORP
21 patentsUS7274662B1Sep 25, 2007
Method for performing segmented resource reservation
AT & T CORP128 citations99
US6324279B1Nov 27, 2001
Method for exchanging signaling messages in two phases
AT & T CORP271 citations99
US7151772B1Dec 19, 2006
Method for performing lawfully-authorized electronic surveillance
AT & T CORP114 citations98
US6694429B1Feb 17, 2004
Method for establishing call state information without maintaining state information at gate controllers
AT & T CORP76 citations98
US6577718B1Jun 10, 2003
Method for call forwarding without hairpinning and with split billing
AT & T CORP92 citations98
US6574335B1Jun 3, 2003
Method for simulating a ring back for a call between parties in different communication networks
AT & T CORP126 citations98
US6498797B1Dec 24, 2002
Method and apparatus for communication services on a network
AT & T CORP153 citations98
US6483912B1Nov 19, 2002
Method for allocating network resources
AT & T CORP86 citations98
US6870845B1Mar 22, 2005
Method for providing privacy by network address translation
AT & T CORP64 citations96
US6823059B2Nov 23, 2004
Method for allocating network resources
AT & T CORP49 citations96
US6757290B1Jun 29, 2004
Method for performing gate coordination on a per-call basis
AT & T CORP45 citations96
US7305081B1Dec 4, 2007
Method for exchanging signaling messages in two phases
AT & T CORP31 citations93
US7289490B1Oct 30, 2007
Method for performing gate coordination on a per-call basis
AT & T CORP12 citations93
US7245610B1Jul 17, 2007
Method for performing gate coordination on a per-call basis
AT & T CORP15 citations93
US6983040B1Jan 3, 2006
Method for call forwarding without hairpinning and with split billing
AT & T CORP14 citations93
US6748070B2Jun 8, 2004
Method for allocating network resources
AT & T CORP24 citations93
US7035410B1Apr 25, 2006
Method and apparatus for enhanced security in a broadband telephony network
AT & T CORP36 citations92
US6915421B1Jul 5, 2005
Method for establishing call state information without maintaining state information at gate controllers
AT & T CORP13 citations84
US7206397B1Apr 17, 2007
Method for allocating network resources
AT & T CORP7 citations74
US7027581B1Apr 11, 2006
Method for exchanging signaling messages in two phases
AT & T CORP3 citations63
US6665299B1Dec 16, 2003
Method and system for telephony and high speed data access on a broadband access network
AT & T CORP5 citations62
AT & T IP II LP
8 patentsUS7492886B1Feb 17, 2009
Method for allocating network resources
AT & T IP II LP55 citations98
US7778240B1Aug 17, 2010
Method for performing gate coordination on a per-call basis
AT & T IP II LP18 citations93
US7742467B1Jun 22, 2010
Method for performing segmented resource reservation
AT & T IP II LP16 citations93
US9277058B2Mar 1, 2016
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP1 citations63
US7711098B1May 4, 2010
Method for call forwarding without hairpinning and with split billing
AT & T IP II LP3 citations63
US10237414B2Mar 19, 2019
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP0 citations52
US9942411B2Apr 10, 2018
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP0 citations52
US9762739B2Sep 12, 2017
Methods, systems, and products for voice-over internet protocol calls
AT & T IP II LP0 citations52
KALMANEK CHARLES ROBERT JR
3 patentsUS8249059B2Aug 21, 2012
Method for performing gate coordination on a per-call basis
KALMANEK CHARLES ROBERT JR6 citations83
US8284911B1Oct 9, 2012
Method for call forwarding without hairpinning and with split billing
KALMANEK CHARLES ROBERT JR3 citations61
US8873547B2Oct 28, 2014
Method for performing gate coordination on a per-call basis
KALMANEK CHARLES ROBERT JR0 citations51