Maple Grove, Minnesota
United States
5
2015-10-15
The entities that hold a legal rights for patent applications filed by inventor Barrows Ryan:
Ryan Barrows from Maple Grove, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Neck-worn air filtration device
#2 | 2012-02-02Personal air filtration device
#3 | 2011-12-29Neck-worn air filtration device
#4 | 2008-12-18PERSONAL AIR FILTRATION DEVICE
#5 | 2008-12-18NECK-WORN AIR FILTRATION DEVICE
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