Denver, Colorado
United States
4
2018-11-29
The entities that hold a legal rights for patent applications filed by inventor Boyle Frank:
Frank Boyle from Denver, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Supporting intermediate back to back user agents between user agents and a conference focus
#2 | 2015-05-21Call transfer with network spanning back-to-back user agents
#3 | 2013-09-26Supporting intermediate back to back user agents between user agents and a conference focus
#4 | 2009-04-02Method for setting up a communication connection and private branch exchange for carrying out the method
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