Keith Butterfield

📍 Portland, ME: #7 of 29 inventorsTop 25%

🗺 Maine: #105 of 400 inventorsTop 30%

Overall (2011): #247,771 of 364,097Top 70%

Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7879056	Pleurabrade device	Kevin Butterfield	2011-02-01