With PTSC up over 200% in less then a week, what's up? This may explain alot:
Patriot Scientific Announces Important Patent Licensing Agreement with Casio
Wednesday February 22, 9:30 am ET
Casio Joins HP as Second "System" Manufacturer to Recognize Need for Digital Hardware Manufacturers to Purchase License for MMP(TM) Core Microprocessor Technologies
Read the link and consider that this may be only the beginning for this stock.