DJ

David Upton Johnson

AI Am International: 1 patents #56 of 142Top 40%
HS Heidelberg Finishing Systems: 1 patents #4 of 16Top 25%
HD Heidelberg Druckmaschinen: 1 patents #796 of 1,510Top 55%
Overall (All Time): #1,628,910 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6082724 Variable speed signature collating apparatus Daniel Lee Kahlig 2000-07-04
5622268 Apparatus for calipering a collated assemblage Charles Jeffrey Conner, Douglas P. Loughman 1997-04-22
5187479 Backlash compensation circuit for use with an incremental encoder Charles Jeffrey Conner, Peter Wolf 1993-02-16