Inventor
HECKENDORN HEIKO
DE8 patents
Patents
8 patentsUS11346314B2May 31, 2022
Method for producing a valve seat ring by powder metallurgy
MAHLE INT GMBH0 citations59
US10982573B2Apr 20, 2021
Method for mounting a valve seat ring on a cylinder head of an internal combustion engine
MAHLE INT GMBH0 citations59
US10272496B2Apr 30, 2019
Method for producing a valve seat ring
MAHLE INT GMBH1 citations58
US11090720B2Aug 17, 2021
Method for producing a powder-metallurgical product
MAHLE INT GMBH0 citations54
US11828207B2Nov 28, 2023
Internal combustion engine with at least one hollow-head valve
MAHLE INT GMBH0 citations49
US11325184B2May 10, 2022
Method for producing a powder-metallurgical product
MAHLE INT GMBH0 citations45
US11098619B2Aug 24, 2021
Method for producing a copper-infiltrated valve seat ring
MAHLE INT GMBH0 citations44
US10612432B2Apr 7, 2020
Tribological system, comprising a valve seat ring and a valve
MAHLE INT GMBH0 citations33