JM

J. Duwayne Manahan

Caterpillar: 1 patents #101 of 431Top 25%
📍 Bloomington, IL: #5 of 16 inventorsTop 35%
🗺 Illinois: #1,486 of 5,836 inventorsTop 30%
Overall (2002): #200,292 of 266,432Top 80%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6349920 Poppet valve shaping for quick valve opening Stephen R. Lewis, Charles B. Looney, Wade J. Robel, Larry R. Mitzelfelt, Jr., David E. Martin +2 more 2002-02-26