P
PatentIndex
Search
Landscape
Sign in
Inventor
FLAK STEFAN
DE
2 patents
Patents
2 patents
US7600535B2
Oct 13, 2009
Valve unit for pressure exchanger installations
KSB AG
13 citations
80
US7152620B2
Dec 26, 2006
Flow-reversing valve
KSB AG
16 citations
79