Kevin P. O'Brien

📍 Portland, OR: #65 of 245 inventorsTop 30%

🗺 Oregon: #204 of 1,007 inventorsTop 25%

Overall (1994): #105,574 of 165,921Top 65%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5320107	Spirometer with zone graph	—	1994-06-14