MD

Marshall Duffield

📍 Newport Beach, CA: #41 of 137 inventorsTop 30%
🗺 California: #8,996 of 28,521 inventorsTop 35%
Overall (2003): #167,931 of 273,478Top 65%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6503109 Swivel drive assembly Jack A Heiser 2003-01-07