P

Inventor

GRUCHALA CAROL S

US8 patents
⚠️ This page may combine multiple inventors who share the name “GRUCHALA CAROL S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AMERITECH SERVICES INC

3 patents
US6252953B1Jun 26, 2001

Method and system for providing a work-at-home telecommunication service

AMERITECH SERVICES INC39 citations92
US7170983B2Jan 30, 2007

Method and system for providing a work-at-home telecommunication service

AMERITECH SERVICES INC13 citations89
US7020255B2Mar 28, 2006

Method and system for providing a work-at-home telecommunication service

AMERITECH SERVICES INC20 citations89

AT & T IP I LP

2 patents
US10650862B2May 12, 2020

Method and device for transmitting audio and video for playback

AT & T IP I LP0 citations50
US9237176B2Jan 12, 2016

Method and device for transmitting audio and video for playback

AT & T IP I LP1 citations50

HEINMILLER WAYNE R

1 patent
US8731370B2May 20, 2014

Method and device for transmitting audio and video for playback

HEINMILLER WAYNE R2 citations54

SBC PROPERTIES LP

1 patent
US7406165B2Jul 29, 2008

Direct route ISDN primary route interface

SBC PROPERTIES LP0 citations40

WHITING TIMOTHY R

1 patent
US8670547B2Mar 11, 2014

Direct route ISDN primary route interface

WHITING TIMOTHY R0 citations33