John W. Sivertsen

UN Unknown: 2 patents #12,644 of 83,584Top 20%

📍 Minneapolis, MN: #2,566 of 6,114 inventorsTop 45%

🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%

Overall (All Time): #2,367,978 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4351128	Fish line bobber/sinker	—	1982-09-28
4235037	Fish line sinker	—	1980-11-25