GM

George Briggs Middleton

📍 Portland, OR: #4,612 of 9,213 inventorsTop 55%
🗺 Oregon: #12,654 of 28,073 inventorsTop 50%
Overall (All Time): #2,097,256 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8282871 Techniques and tools for assembling and disassembling compactable molds and forming building blocks Franklin David Davies, Rudolf Alfred Heijden, Richard William Kay, Robert H. Nippert 2012-10-09
7992837 Techniques and tools for assembling and disassembling compactable molds and forming building blocks Franklin David Davies, Rudolf Alfred Heijden, Richard William Kay, Robert H. Nippert 2011-08-09