HF

Hans P. Fredricksen

SP Sperry: 1 patents #355 of 841Top 45%
UA US Army: 1 patents #2,720 of 6,974Top 40%
📍 Burnsville, MN: #271 of 632 inventorsTop 45%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,349,019 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4609891 Staggered SAW resonator for differential detection Leland P. Solie 1986-09-02
4600905 Flat passband etched groove saw filter — 1986-07-15