DB

David J. Boll

RM Royal Appliance Mfg.: 10 patents #25 of 121Top 25%
Abbott: 8 patents #817 of 5,431Top 20%
CS Creative Spark: 8 patents #2 of 7Top 30%
TP Trico Products: 4 patents #15 of 109Top 15%
JE J. F. Meskill Enterprises: 2 patents #5 of 6Top 85%
CO Conopco: 2 patents #561 of 1,903Top 30%
NA Nottingham Spirk Design Associates: 2 patents #18 of 56Top 35%
RP Rich Products: 2 patents #27 of 84Top 35%
ZM Zippo Manufacturing: 1 patents #19 of 36Top 55%
FI Firstenergy: 1 patents #3 of 25Top 15%
IN Innotek: 1 patents #15 of 27Top 60%
AT Alliant Techsystems: 1 patents #285 of 658Top 45%
📍 Cleveland, OH: #11 of 1,781 inventorsTop 1%
🗺 Ohio: #644 of 73,341 inventorsTop 1%
Overall (All Time): #47,289 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 51–54 of 54 patents

Patent #TitleCo-InventorsDate
6347428 Hand-held wet/dry vacuum David Shimko, Jeffrey M. Kalman, Michael F. Wright 2002-02-19
D444603 Tool holder for vacuum cleaner wand John S. Murphy, David DiNunzio, Jeffrey M. Kalman, Craig M. Saunders 2001-07-03
D443960 Portable wet/dry vacuum cleaner David Shimko, Jeffrey M. Kalman, Michael F. Wright, Richard C. Farone, Robert A. Matousek +1 more 2001-06-19
6073300 Valve assembly for carpet extractor Terry L. Zahuranec 2000-06-13