RSCF - Reflect Scientific looks like a good little company - float looks like around 30million, trading around 5 cents. Real revenues, near break even, no convertibles and almost no debt and about $175k cash on the books.
Caught my eye when I see they just got a patent on ice buildup on the inside of freezers.
A snippet:
<<The application solves the problem of internal icing within bio-sample storage freezers by introducing three new techniques to traditional mechanical freezers. Highly effective hybrid insulation technique, Internal purging using water vapor free air and Close tolerance fitment of internal sub-assemblies.>>