Westland, Michigan
United States
4
2008-08-07
The entities that hold a legal rights for patent applications filed by inventor Hellie Mark D.:
Mark D. Hellie from Westland, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Multilayered long life filter using convoluted foam
#2 | 2008-03-06Hydrocarbon trap assembly
#3 | 2006-10-19Modular resonator
#4 | 2006-04-27Dual chamber variable geometry resonator
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