DD

Donald W. Dingfelder

IBM: 1 patents #1,943 of 5,539Top 40%
📍 Winona, MN: #3 of 10 inventorsTop 30%
🗺 Minnesota: #1,525 of 4,860 inventorsTop 35%
Overall (2003): #235,253 of 273,478Top 90%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6517369 Retention bracket/collar for circuit cards Matthew A. Butterbaugh, Yasuharu Yamada 2003-02-11