P

Inventor

HARRINGTON CLAUDE LEE

US7 patents
⚠️ This page may combine multiple inventors who share the name “HARRINGTON CLAUDE LEE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SBC PROPERTIES LP

3 patents
US7139383B2Nov 21, 2006

Method and system for providing enhanced call waiting

SBC PROPERTIES LP17 citations92
US6829343B2Dec 7, 2004

Method and system for providing enhanced call waiting

SBC PROPERTIES LP16 citations92
US7391859B2Jun 24, 2008

Method and system for providing enhanced call waiting

SBC PROPERTIES LP13 citations84

AMERITECH CORP

2 patents
US6219414B1Apr 17, 2001

Method and system for providing enhanced call waiting

AMERITECH CORP76 citations96
US6633634B1Oct 14, 2003

Method and system for providing enhanced call waiting

AMERITECH CORP27 citations92

AT & T KNOWLEDGE VENTURES LP

1 patent
US7388952B2Jun 17, 2008

Method and system for providing enhanced call waiting

AT & T KNOWLEDGE VENTURES LP13 citations92

MACIEJEWSKI JAMES THOMAS

1 patent
US8126132B2Feb 28, 2012

Method and system for providing enhanced call waiting

MACIEJEWSKI JAMES THOMAS0 citations34