S it or get off the pot The big picture here is that it is clear that QNC will get their EPO patent. There is nothing to say when that will happen. The NDAs are a positive sign, but there is no information to support that a signed deal is already waiting in the pipeline.
If you sell now, it never made sense for you to buy. We are waiting on one near certainty, which would open the door to a big gamble that they can make a sale. That gamble is very much worth hanging on for IMHO.
Be patient or cash out. Nothing much to discuss during this holding pattern.