Douglas H. Powell

HI Hunter Innovations: 2 patents #1 of 2Top 50%

📍 Cameron Park, CA: #6 of 34 inventorsTop 20%

🗺 California: #3,859 of 26,763 inventorsTop 15%

Overall (2002): #67,423 of 266,432Top 30%

Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6443181	Backflow prevention apparatus	—	2002-09-03
6424332	Image comparison apparatus and method	—	2002-07-23