DP

David P. Parks

HL Hoover Limited: 2 patents #117 of 240Top 50%
📍 North Canton, OH: #231 of 570 inventorsTop 45%
🗺 Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,598,213 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6875255 Removable dirt separation system for a vacuum cleaner William G. Alford, Jerry L. Balzer, Greg A. Bilek, Joseph A. Garisto, Erik D. Lesco +3 more 2005-04-05
5961676 Hard bag door with air directing arrangement Douglass A. King, Raymond L. Lawer, Kurt D. Harsh, Douglas C. Barker, Jeffrey S. Louis +2 more 1999-10-05
5863309 Hard bag door with air directing arrangement Jeffrey S. Louis, Kurt D. Harsh, William H. Theiss, Jr., David B. Rennecker 1999-01-26