RD

Robert P. Davidow

📍 Annandale, VA: #76 of 315 inventorsTop 25%
🗺 Virginia: #9,471 of 34,511 inventorsTop 30%
Overall (All Time): #1,610,193 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6565310 Steam-powered rotary engine 2003-05-20
5611556 Speed change mechanism 1997-03-18
4813302 Speed changing mechanism 1989-03-21