LQ

Leonard A. Quinn

BS Bendix Commercial Vehicle Systems: 32 patents #5 of 338Top 2%
AS Alliedsignal Truck Brake Systems: 2 patents #7 of 44Top 20%
📍 LaGrange, OH: #1 of 27 inventorsTop 4%
🗺 Ohio: #1,359 of 73,341 inventorsTop 2%
Overall (All Time): #98,925 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 1–25 of 35 patents

Patent #TitleCo-InventorsDate
9266515 Air dryer purge controller and method David J. Pfefferl, Andras Sipos, Aaron S. Wilfing, Cory Hamilton 2016-02-23
9101856 Purge exhaust processor Randall W. Nichols, William P. Fornof, Fred W. Hoffman, Richard J. Conklin 2015-08-11
8585809 Air dryer cartridge Eugene Clair 2013-11-19
8557030 Air dryer assembly William P. Fornof 2013-10-15
8118911 Air drying arrangement Fred W. Hoffman 2012-02-21
7981194 Air drying arrangement Fred W. Hoffman 2011-07-19
D629090 Air dryer Gregory R. Ashley 2010-12-14
7819958 Purge valve Fred W. Hoffman, Randall W. Nichols 2010-10-26
7789925 Purge exhaust processor William P. Fornof, Fred W. Hoffman, Randall W. Nichols 2010-09-07
7789950 Air dryer with oil removal filter Fred W. Hoffman, William P. Fornof 2010-09-07
D621017 Air dryer Gregory R. Ashley 2010-08-03
7753069 Drain valve Randall W. Nichols, Fred W. Hoffman 2010-07-13
7708793 Purge exhaust processor William P. Fornof, Fred W. Hoffman, Randall W. Nichols 2010-05-04
7631656 Pressure control valve Fred W. Hoffman 2009-12-15
D604821 Air dryer Gregory R. Ashley 2009-11-24
7520922 Air dryer system Fred W. Hoffman, Eugene Clair 2009-04-21
D574940 Air dryer system Fred W. Hoffman 2008-08-12
D573240 Air dryer system Fred W. Hoffman 2008-07-15
D570979 Air dryer reservoir Fred W. Hoffman 2008-06-10
7285149 Oil separator for vehicle air system William P. Fornof, Gregory R. Ashley, Fred W. Hoffman, Gregory C. Smith 2007-10-23
D546431 Air dryer reservoir Fred W. Hoffman 2007-07-10
RE39467 Air dryer reservoir module components Fred W. Hoffman, David J. Goodell 2007-01-16
7100305 Air dryer mounting assembly Fred W. Hoffman 2006-09-05
7008472 Spin-on filtering oil removal cartridge William P. Fornof, Gregory R. Ashley 2006-03-07
6951581 Spin-on desiccant cartridge with integral oil removal filter William P. Fornof, James P. Koenig 2005-10-04