Inventor

GRAEFEN WINFRIED

DE3 patents

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

IPSEN IND INT GMBH

2 patents

US5851314ADec 22, 1998

Method for plasma carburization of metal workpieces

IPSEN IND INT GMBH7 citations69

US5717186AFeb 10, 1998

Method and device for controlling the electric current density across a workpiece during heat treatment in a plasma

IPSEN IND INT GMBH8 citations67

IPSEN INT GMBH

1 patent

US7160576B2Jan 9, 2007

Method and device for blacking components

IPSEN INT GMBH0 citations41