Ringgold, Georgia
United States
5
2012-11-13
The entities that hold a legal rights for patent applications filed by inventor Doss Robert L.:
Robert L. Doss from Ringgold, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Isolated high gain line amplifier circuit
#2 | 2011-02-01Microphone with reduced noise
#3 | 2007-11-20Microphone with reduced noise
#4 | 2006-02-21Full duplex telephone set using echo cancellation and side tone management for high gain stability
#5 | 2005-09-29Adaptive duplexing for amplified telephone
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