Inventor
SIEFKEN UDO
DE3 patents
Patents
3 patentsUS6350294B1Feb 26, 2002
Powder-metallurgically produced composite material and method for its production
LOUIS RENNER GMBH25 citations86
US7339127B2Mar 4, 2008
Contact piece made of tungsten provided with a corrosion-resistant layer made of a base metal
LOUIS RENNER GMBH7 citations70
US6312495B1Nov 6, 2001
Powder-metallurgically produced composite material and method for its production
LOUIS RENNER GMBH12 citations67