I don't debate against your math litton51. In fact I generally agree with it. If we were 'still' trading as a viable company (if we ever were viable) and that 100 million in patent value were being used effectively we "should" have had a book value of at least $0.50/share (IMO - assuming 100 million dollars value divided by 200 million shares).
Assuming the company was like some profit-generating tech companies and was trading at even 5x-10x P/E we should have been in the few dollars/share level.