Harold Hall

Middlefield, OH: #1 of 5 inventorsTop 20%

Ohio: #1,853 of 6,034 inventorsTop 35%

Overall (2011): #292,115 of 364,097Top 85%

1 Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7887699	Magnetic filter device	—	2011-02-15