ClearSign Combustion Corporation Announces First Quarter 2012 Results

SEATTLE, WA -- (Marketwire) -- 06/11/12 -- ClearSign Combustion Corporation (NASDAQ: CLIR), an emerging leader in…

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LiqTech International, Inc. to Host First Quarter Conference Call on May 14, 2012

BALLERUP, DENMARK -- (Marketwire) -- 05/08/12 -- LiqTech International, Inc. (OTCQX: LIQT) (OTCBB: LIQT) ("LiqTech") said…

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