Marwin K. Kemp has been granted 3 US patents while listed as an inventor at Amoco. The first was granted in 1992 and the most recent in June 2017. Marwin K. Kemp ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Marwin K. Kemp in Muskogee, OK, US.