KW

Keith Wojciechowski

DE Derrick: 52 patents #1 of 29Top 4%
DM Derrick Manufacturing: 6 patents #2 of 14Top 15%
📍 Lakeview, NY: #1 of 1 inventorsTop 100%
🗺 New York: #1,461 of 115,490 inventorsTop 2%
Overall (All Time): #40,979 of 4,157,543Top 1%
58
Patents All Time

Issued Patents All Time

Showing 51–58 of 58 patents

Patent #TitleCo-InventorsDate
7578394 Method and apparatuses for screening Christian Newman 2009-08-25
7228971 Vibratory screening machine and vibratory screen and screen tensioning structure James A. Mooney 2007-06-12
6669027 Vibratory screening machine and vibratory screen and screen tensioning structure James A. Mooney 2003-12-30
6220448 Screen assembly for vibratory screening machine John J. Bakula 2001-04-24
6153041 Screen assembly for vibratory screening machine and method of fabrication thereof John J. Bakula 2000-11-28
5888336 Screen assembly for vibratory screening machine and method of fabrication thereof John J. Bakula 1999-03-30
5673797 Screen assembly for vibratory screening machine and method of fabrication thereof John J. Bakula 1997-10-07
5636749 Undulating screen for vibratory screening machine 1997-06-10