DB

David J. Boll

RM Royal Appliance Mfg.: 5 patents #5 of 31Top 20%
📍 Cleveland, OH: #6 of 72 inventorsTop 9%
🗺 Ohio: #145 of 5,836 inventorsTop 3%
Overall (2003): #10,543 of 273,478Top 4%
5
Patents 2003

Issued Patents 2003

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D480849 Grill construction for vacuum cleaner Paul D. Stephens, Robert A. Salo, Mark E. Cipolla, Craig Barbeck, Jeffrey M. Kalman +1 more 2003-10-14
D480851 Front handle for vacuum cleaner Paul D. Stephens, Robert A. Salo, Mark E. Cipolla, Craig Barbeck, Jeffrey M. Kalman +1 more 2003-10-14
D477446 Nozzle for vacuum cleaner Jeffrey M. Kalman, Nicholas E. Stanca 2003-07-15
D475822 Housing for a stick-type vacuum cleaner Jeffrey M. Kalman, Nicholas E. Stanca 2003-06-10
D475491 Dust cup for vacuum cleaner Jeffrey M. Kalman, Nicholas E. Stanca 2003-06-03