Date: May 16, 2012 Source: bizjournals (
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Seattle-based ClearSign Combustion Corp. said its initial public offering of its shares raised gross proceeds of $13.8 million.
ClearSign, which trades on the NASDAQ stock exchange with the symbol "CLIR," develops technologies to improve performance of combustion systems such as boilers, furnaces, kilns and turbines.
ClearSign's CEO is Rick Rutkowski, a co-founder of Microvision Inc., a Redmond maker of ultra-miniature projection display technology. ClearSign's headquarters are at 12870 Interurban Avenue S. in Seattle.