FJ

Frederick R. Kroeger, Jr.

3M: 2 patents #5,326 of 11,543Top 50%
📍 Windom, MN: #1,276 of 2,819 inventorsTop 50%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,278,074 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5508507 Imaging system employing effective electrode geometry and processing Owen L. Nelson 1996-04-16
4328441 Output circuit for piezoelectric polymer pressure sensor Richard A. Norquist 1982-05-04