Inventor

GRUCHALA CAROL

US6 patents

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

SBC KNOWLEDGE VENTURES LP

2 patents

US7269408B2Sep 11, 2007

Method and system of alerting callers to surcharges

SBC KNOWLEDGE VENTURES LP5 citations60

US7379449B2May 27, 2008

Method and system of supporting abbreviated dialing between affiliated phones wherein at least one phone is associated with a non-affiliated network

SBC KNOWLEDGE VENTURES LP2 citations56

AT & T IP I LP

1 patent

US8023632B2Sep 20, 2011

Method, system and article for providing a family telecommunication service using an originating dual-tone multi-frequency trigger

AT & T IP I LP18 citations88

GRUCHALA CAROL

1 patent

US8744052B2Jun 3, 2014

System and method for detecting false caller ID

GRUCHALA CAROL4 citations65

AT & T KNOWLEDGE VENTURES LP

1 patent

US7653190B1Jan 26, 2010

Methods, system and article for providing a family telecommunication service using an originating dual-tone multi-frequency trigger

AT & T KNOWLEDGE VENTURES LP0 citations48

SOO ARMSTRONG

1 patent

US9294628B2Mar 22, 2016

Method and apparatus for processing network origination calls in a hybrid network

SOO ARMSTRONG0 citations40