DK

Douglas W. Koehler

Caterpillar: 2 patents #48 of 431Top 15%
📍 Naperville, IL: #32 of 272 inventorsTop 15%
🗺 Illinois: #618 of 5,836 inventorsTop 15%
Overall (2002): #67,540 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6446433 Hydraulic control system for improving pump response and dynamic matching of pump and valve Bradford J. Holt, John J. Krone, Michael A. Cobo 2002-09-10
6357276 System and method for calibrating a independent metering valve Dennis J. Hausman 2002-03-19