DK

Donald J. Kerfeld

IM Imation: 2 patents #8 of 63Top 15%
📍 Windom, MN: #20 of 226 inventorsTop 9%
🗺 Minnesota: #442 of 4,231 inventorsTop 15%
Overall (2005): #57,959 of 245,428Top 25%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6977052 Check disk for optical data storage disk manufacturing Ted L. Bahns, Barry Brovold 2005-12-20
6961950 Variable thickness stamper for creation of flat molded substrates Douglas J. Chaput, Jathan D. Edwards, Chad R. Sandstrom 2005-11-01