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John Spangler

RS Radio Systems: 4 patents #1 of 16Top 7%
📍 Knoxville, TN: #14 of 355 inventorsTop 4%
🗺 Tennessee: #100 of 2,194 inventorsTop 5%
Overall (2023): #45,370 of 537,848Top 9%
4
Patents 2023

Issued Patents 2023

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D1007785 Collar receiver Andrew Geouque, Michael Chuanbo Zhou, Robert A. Nytko 2023-12-12
D986753 Pet boundary transmitter Darrell Douglas, Jonathan L. Cornwell, Robert A. Nytko 2023-05-23
D986512 Pet boundary collar receiver Darrell Douglas, Jonathan L. Cornwell, Robert A. Nytko 2023-05-16
D985407 Pet boundary control panel Darrell Douglas, Jonathan L. Cornwell, Robert A. Nytko 2023-05-09