Barbara DerryBerry

Person

Plano, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Push-to-talk telecommunications system utilizing an voice-over-IP n...
- Patent number 9,723,458
- Issue date Aug 1, 2017
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk telecommunications system utilizing an voice-over-IP n...
- Patent number 9,014,742
- Issue date Apr 21, 2015
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk telecommunications system utilizing an voice-over-IP n...
- Patent number 8,694,041
- Issue date Apr 8, 2014
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk telecommunications system utilizing a voice-over-IP ne...
- Patent number 8,447,341
- Issue date May 21, 2013
- Apple Inc.
- Robert Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk wireless telecommunications system utilizing a voice-o...
- Patent number 8,428,237
- Issue date Apr 23, 2013
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk wireless telecommunications system utilizing a voice-o...
- Patent number 7,826,603
- Issue date Nov 2, 2010
- Nortel Networks Limited
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk wireless telecommunications system utilizing an voice-...
- Patent number 7,801,953
- Issue date Sep 21, 2010
- Nortel Networks Limited
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Push-to-talk wireless telecommunications system utilizing a voice-o...
- Patent number 7,170,863
- Issue date Jan 30, 2007
- Nortel Networks Limited
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Push-to-Talk Telecommunications System Utilizing an Voice-Over-IP N...
- Publication number 20150223031
- Publication date Aug 6, 2015
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Push-to-Talk Telecommunications System Utilizing an Voice-Over-IP N...
- Publication number 20140221035
- Publication date Aug 7, 2014
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PUSH-TO-TALK TELECOMMUNICATIONS SYSTEM UTILIZING AN VOICE-OVER-IP N...
- Publication number 20130281147
- Publication date Oct 24, 2013
- Apple Inc.
- Robert E. Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PUSH-TO-TALK TELECOMMUNICATIONS SYSTEM UTILIZING A VOICE-OVER-IP NE...
- Publication number 20100248772
- Publication date Sep 30, 2010
- Nortel Networks Limited
- Robert Denman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Barbara DerryBerry

Person

Patents Grantslast 30 patents

Push-to-talk telecommunications system utilizing an voice-over-IP n...

Push-to-talk telecommunications system utilizing an voice-over-IP n...

Push-to-talk telecommunications system utilizing an voice-over-IP n...

Push-to-talk telecommunications system utilizing a voice-over-IP ne...

Push-to-talk wireless telecommunications system utilizing a voice-o...

Push-to-talk wireless telecommunications system utilizing a voice-o...

Push-to-talk wireless telecommunications system utilizing an voice-...

Push-to-talk wireless telecommunications system utilizing a voice-o...

Patents Applicationslast 30 patents

Push-to-Talk Telecommunications System Utilizing an Voice-Over-IP N...

Push-to-Talk Telecommunications System Utilizing an Voice-Over-IP N...

PUSH-TO-TALK TELECOMMUNICATIONS SYSTEM UTILIZING AN VOICE-OVER-IP N...

PUSH-TO-TALK TELECOMMUNICATIONS SYSTEM UTILIZING A VOICE-OVER-IP NE...