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David Stevenson Spain, Jr.

PW Polaris Wireless: 1 patents #2 of 6Top 35%
📍 Portland, OR: #221 of 661 inventorsTop 35%
🗺 Oregon: #630 of 2,069 inventorsTop 35%
Overall (2002): #232,148 of 266,432Top 90%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6393294 Location determination using RF fingerprinting Luis Perez-Breva, Chee-Yee Chong, Robert Morris Dressler, Padmanabha R. Rao, Paolo Siccardo 2002-05-21