Inventor

THOENNESSEN DIETER

DE4 patents

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

PIERBURG GMBH

1 patent

US7207324B2Apr 24, 2007

Air-intake duct system for a combustion engine

PIERBURG GMBH16 citations91

KUEHNEL HANS-ULRICH

1 patent

US8511074B2Aug 20, 2013

Heat transfer unit for an internal combustion engine

KUEHNEL HANS-ULRICH15 citations80

PIERBURG AG

1 patent

US6213446B1Apr 10, 2001

Exhaust gas recirculation valve having means to free a stuck valve member

PIERBURG AG12 citations71

BOSCH PIERBURG SYSTEM OHG

1 patent

US4379770AApr 12, 1983

Carburettors for internal combustion engines

BOSCH PIERBURG SYSTEM OHG3 citations60