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Jonathan P. Spence

SP Spenco: 1 patents #3 of 4Top 75%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Cavalier, ND: #1 of 6 inventorsTop 20%
🗺 North Dakota: #457 of 2,395 inventorsTop 20%
Overall (All Time): #1,279,069 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6076807 Fence or deck post cap 2000-06-20
6038966 Apparatus for cooking eggs 2000-03-21
5876021 Railing spindle or baluster John J. Hronas 1999-03-02
5157551 Mirror wiper apparatus 1992-10-20