Inventor

EHMANN FRANK

DE2 patents

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

KOLLOTZEK HELMUT

1 patent

US8733315B2May 27, 2014

Casting core for forming a cooling channel in a piston

KOLLOTZEK HELMUT1 citations42

MAHLE INT GMBH

1 patent

US10487776B2Nov 26, 2019

Piston for an internal combustion engine

MAHLE INT GMBH0 citations28