Adrian P. Kightlinger has been granted 7 US patents while listed as an inventor at Grain Processing. The first was granted in 1981 and the most recent in April 2002. Adrian P. Kightlinger ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Adrian P. Kightlinger in De Witt, IA, US.