Douglas J. Key

📍 Portland, OR: #4,612 of 9,213 inventorsTop 55%

🗺 Oregon: #12,654 of 28,073 inventorsTop 50%

Overall (All Time): #2,168,057 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7033349	Method of amplifying a beneficial selective skin response to light energy	—	2006-04-25
6746444	Method of amplifying a beneficial selective skin response to light energy	—	2004-06-08