Dracut, Massachusetts
United States
4
2013-02-07
The entities that hold a legal rights for patent applications filed by inventor Grapperhaus Michael:
Michael Grapperhaus from Dracut, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Sparker Array Source
#2 | 2007-10-18Reflectors and reflector light and sound source systems
#3 | 2007-09-06Advanced surface discharge lamp systems
#4 | 2006-11-16Intelligent system for detection of process status, process fault and preventive maintenance
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