DD

David C. Dunnigan

GM Gross-Given Manufacturing: 2 patents #7 of 22Top 35%
📍 Buffalo, MN: #71 of 168 inventorsTop 45%
🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%
Overall (All Time): #2,246,880 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5899079 Damper apparatus for refrigerated vending machines with a defrost cycle Bart W. Baxter, Joseph A. Lotspeich 1999-05-04
5875645 Self-sealing vending machine refrigeration apparatus 1999-03-02