RH

Rudolf Alfred Heijden

📍 Beaverton, OR: #1,104 of 3,140 inventorsTop 40%
🗺 Oregon: #8,503 of 28,073 inventorsTop 35%
Overall (All Time): #1,234,623 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8282871 Techniques and tools for assembling and disassembling compactable molds and forming building blocks Franklin David Davies, Richard William Kay, George Briggs Middleton, Robert H. Nippert 2012-10-09
8252221 Compacting techniques for forming lightweight concrete building blocks Franklin David Davies, Laurian Dobrota, Richard William Kay, Robert H. Nippert 2012-08-28
7992837 Techniques and tools for assembling and disassembling compactable molds and forming building blocks Franklin David Davies, Richard William Kay, George Briggs Middleton, Robert H. Nippert 2011-08-09
7988123 Compactable mold for forming building blocks Franklin David Davies, Laurian Dobrota, Richard William Kay, Robert H. Nippert 2011-08-02