DF

David M. Friend

IBM: 2 patents #3,235 of 11,143Top 30%
📍 Rochester, MN: #147 of 476 inventorsTop 35%
🗺 Minnesota: #1,470 of 7,373 inventorsTop 20%
Overall (2019): #181,055 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10326450 Implementing cascade level shifter for analog voltage Andrew D. Davies, Grant P. Kesselring, James D. Strom 2019-06-18
10250267 Differential phase-frequency detector Grant P. Kesselring, James D. Strom, Alan P. Wagstaff 2019-04-02