DC

David F. Christofferson

QU Quad/Graphics: 4 patents #10 of 61Top 20%
QU Quadtech: 3 patents #21 of 80Top 30%
AI Am International: 1 patents #56 of 142Top 40%
📍 Englewood, OH: #12 of 97 inventorsTop 15%
🗺 Ohio: #10,201 of 73,341 inventorsTop 15%
Overall (All Time): #648,181 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9056401 Adjustable trimming assembly William T. Graushar, John C. Geres, Patrick A. Millikin, Michael J. Krchma, Greg Goss +4 more 2015-06-16
8528890 In-line shell processing William T. Graushar, John C. Geres 2013-09-10
8291799 Adjustable trimming assembly William T. Graushar, John C. Geres, Patrick A. Millikin, Michael J. Krchma, Greg Goss +4 more 2012-10-23
8083455 Cover applier system William T. Graushar, Timothy A. Heimerl, William Schnell 2011-12-27
7506813 Resonator use in the print field Edward J. Anderson, John C. Geres, William T. Graushar 2009-03-24
7048111 Hopper loader apparatus and method 2006-05-23
6427999 Signature hopper loader apparatus and method 2002-08-06
5203549 Collator with printer having inclined printing path and displaceable conveyor belts to expose printing surface Robert A. Bryson, Sr., John N. Hobbs, Al Baglyos 1993-04-20