BD

Barbara Derryberry

Apple: 5 patents #5,407 of 18,612Top 30%
Nortel Networks Limited: 3 patents #1,060 of 5,294Top 25%
Overall (All Time): #643,528 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9723458 Push-to-talk telecommunications system utilizing an voice-over-IP network Robert E. Denman, Sriram Parameswar 2017-08-01
9014742 Push-to-talk telecommunications system utilizing an voice-over-IP network Robert E. Denman, Sriram Parameswar 2015-04-21
8694041 Push-to-talk telecommunications system utilizing an voice-over-IP network Robert E. Denman, Sriram Parameswar 2014-04-08
8447341 Push-to-talk telecommunications system utilizing a voice-over-IP network Robert E. Denman, Sriram Parameswar 2013-05-21
8428237 Push-to-talk wireless telecommunications system utilizing a voice-over-IP network Robert E. Denman, Sriram Parameswar 2013-04-23
7826603 Push-to-talk wireless telecommunications system utilizing a voice-over-IP network Robert E. Denman, Sriram Parameswar 2010-11-02
7801953 Push-to-talk wireless telecommunications system utilizing an voice-over-IP network Robert E. Denman, Sriram Parameswar 2010-09-21
7170863 Push-to-talk wireless telecommunications system utilizing a voice-over-IP network Robert E. Denman, Sriram Parameswar 2007-01-30