Plano, Texas
United States
8
2015-08-06
The entities that hold a legal rights for patent applications filed by inventor DerryBerry Barbara:
Barbara DerryBerry from Plano, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Push-to-talk telecommunications system utilizing an voice-over-IP network
#2 | 2014-08-07Push-to-talk telecommunications system utilizing an voice-over-IP network
#3 | 2013-10-24Push-to-talk telecommunications system utilizing an voice-over-IP network
#4 | 2013-04-23Push-to-talk wireless telecommunications system utilizing a voice-over-IP network
#5 | 2010-11-02Push-to-talk wireless telecommunications system utilizing a voice-over-IP network
#6 | 2010-09-30Push-to-talk telecommunications system utilizing a voice-over-IP network
#7 | 2010-09-21Push-to-talk wireless telecommunications system utilizing an voice-over-IP network
#8 | 2007-01-30Push-to-talk wireless telecommunications system utilizing a voice-over-IP network
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