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Inventor

HAUGEN DAVID JAMES

US11 patents
⚠️ This page may combine multiple inventors who share the name “HAUGEN DAVID JAMES”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DEERE & CO

3 patents
US6216668B1Apr 17, 2001

Engine performance measuring method

DEERE & CO26 citations92
US6279516B1Aug 28, 2001

Cylinder head with two-plane water jacket

DEERE & CO38 citations89
US6213091B1Apr 10, 2001

Engine compression brake system

DEERE & CO13 citations73

US ENVIRONMENT

2 patents
US6857263B2Feb 22, 2005

Low emission diesel combustion system with low charge-air oxygen concentration levels and high fuel injection pressures

US ENVIRONMENT69 citations97
US7861525B2Jan 4, 2011

Dual volute turbocharger

US ENVIRONMENT4 citations62

US ENVIRONMENTAL PROTECTION

2 patents
US7681394B2Mar 23, 2010

Control methods for low emission internal combustion system

US ENVIRONMENTAL PROTECTION101 citations96
US7644585B2Jan 12, 2010

Multi-stage turbocharging system with efficient bypass

US ENVIRONMENTAL PROTECTION29 citations91

HAUGEN DAVID JAMES

2 patents
US8061121B2Nov 22, 2011

Flex fuel internal combustion engine system

HAUGEN DAVID JAMES23 citations89
US8272356B2Sep 25, 2012

Two mode dual crankshaft engine

HAUGEN DAVID JAMES2 citations60

GRAY JR CHARLES L

1 patent
US8387385B2Mar 5, 2013

Efficient bypass valve for multi-stage turbocharging system

GRAY JR CHARLES L7 citations83

STUHLDREHER MARK SPENCER

1 patent
US8100221B2Jan 24, 2012

Engine-off power steering system

STUHLDREHER MARK SPENCER9 citations76