Moraga, California
United States
8
2014-03-20
The entities that hold a legal rights for patent applications filed by inventor Erdman William L.:
William L. Erdman from Moraga, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Inverter modulator with variable switching frequency responsive to a sensed parameter
#2 | 2014-02-13Utility scale electric energy storage system
#3 | 2012-12-27HIGH VOLTAGE DIRECT CURRENT GENERATION AND TRANSMISSION BY A WIND TURBINE
#4 | 2011-02-17Utility scale electric energy storage system
#5 | 2010-03-04Networked multi-inverter maximum power-point tracking
#6 | 2009-11-12Inverter modulator with variable switching frequency
#7 | 2009-01-08Systems and methods for synchronous speed avoidance in doubly-fed induction generators
#8 | 2009-01-08DC voltage regulator
647595 ⎘