Duane D. Kruger has been granted 12 US patents while listed as an inventor at Delphi Technologies. The first was granted in 2001 and the most recent in July 2018. Duane D. Kruger ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Duane D. Kruger in Big Rapids, MI, US.