Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DE

Deven John Efta

Caterpillar: 2 patents #2,982 of 8,398Top 40%
Mayville, ND: #64 of 197 inventorsTop 35%
North Dakota: #797 of 2,395 inventorsTop 35%
Overall (All Time): #1,954,879 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9975208 Alloy for cast iron repair Tomasz J. Chojnacki, Mark D. Veliz 2018-05-22
8893690 Check valve for an engine breather assembly D. Brent Cluskey 2014-11-25