Ralph M. Cohen

📍 Portland, OR: #812 of 1,767 inventorsTop 50%

🗺 Oregon: #1,786 of 4,319 inventorsTop 45%

Overall (2017): #274,645 of 506,227Top 55%

Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9586284	Purge dam and method of use	Coke Evans, Richard Bottorff	2017-03-07