DB

David McMahan Butler

FI Filmax: 1 patents #1 of 3Top 35%
📍 Knoxville, TN: #59 of 197 inventorsTop 30%
🗺 Tennessee: #354 of 1,455 inventorsTop 25%
Overall (2002): #236,671 of 266,432Top 90%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6476723 Insulating oil leak containment David C. Campbell, Johnny James Clark 2002-11-05