Thelma G. DeVor has been granted 1 US patent while listed as an inventor at Devor Nurseries. All of these patents were granted in 1984. Thelma G. DeVor ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Thelma G. DeVor in Pleasanton, CA, US.