DR

David C. Rohrer

PR Proform: 1 patents #6 of 13Top 50%
Overall (All Time): #1,617,334 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6422785 Track belt placer for placing construction materials and method for placing construction materials Thomas A. Ruggles 2002-07-23
4721428 Tennis ball retriever Daniel Rohrer 1988-01-26
4684126 General purpose exercise machine William T. Dalebout, Sohrab Vassoughi, William J. Martinell, Steven W. Martinell, Robert L. Marchant 1987-08-04