Inventor
ZABESCHEK STEFAN
DE4 patents
Patents
4 patentsUS7226276B2Jun 5, 2007
Multi-stage reciprocating vacuum pump and method of operating the same
PFEIFFER VACUUM GMBH7 citations70
US7669516B2Mar 2, 2010
Cylinder-piston arrangement
PFEIFFER VACUUM GMBH2 citations51
US7241120B2Jul 10, 2007
Piston machine with ported piston head
PFEIFFER VACUUM GMBH2 citations48
US7036792B2May 2, 2006
Valve arrangement for a vacuum pump
PFEIFFER VACUUM GMBH0 citations48