FH

Frank A. Hull

CC Chesley F. Carlson: 2 patents #1 of 6Top 20%
UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Windom, MN: #481 of 2,819 inventorsTop 20%
🗺 Minnesota: #10,397 of 52,454 inventorsTop 20%
Overall (All Time): #751,279 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
7506583 Flexographic printing reflector 2009-03-24
6931992 Combined ablation and exposure system and method Benn Horrisberger 2005-08-23
6700598 Digital imaging system employing non-coherent light source 2004-03-02
4989032 Proof light H. Brent Archer 1991-01-29
4941746 Apparatus for automatically determining the densities of a graphic image H. Brent Archer, Curt Frederick 1990-07-17
4933543 Dark signal compensation for diode arrays 1990-06-12
4498140 Automated self calibrating exposure computer 1985-02-05