BD

Brian N. Duckwall

DL Dana Limited: 2 patents #266 of 1,099Top 25%
📍 Norman, OK: #215 of 626 inventorsTop 35%
🗺 Oklahoma: #4,502 of 12,736 inventorsTop 40%
Overall (All Time): #2,279,219 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5522600 Annular lubricant seal assembly with spring member — 1996-06-04
5398942 Annular lubricant seal assembly James A. Mansfield 1995-03-21