Escondido, California
United States
4
2008-03-13
The entities that hold a legal rights for patent applications filed by inventor Spencer Michael E.:
Michael E. Spencer from Escondido, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Modulator processing for a parametric speaker system
#2 | 2007-01-18Modulator-amplifier
#3 | 2007-01-09Modulator processing for a parametric speaker system
#4 | 2005-07-14Modulator—amplifier
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