The buyers have been in this company for years without any return on their investment; hence, they are definitely taking a wait and see position. Once the USPTO takes a position on the '336, the price will definitely move, but the direction is still uncertain right now. The USPTO has been unpredictable in these matters which only feeds the speculation. I believe that most investors that follow PTSC have enough shares to participate in a price surge and are not willing to commit more funds. There is a limit to how much an investor is willing to commit to this USPTO decision.