Larry M Goldstein has published an interesting book called True Patent Value – Defining Value in Patents and Patent Portfolios which looks into how to value patents and patent portfolios. The examples chosen are from telecommunication patents. I am not sure to what extent the insights are relevant to other technologies, such as pharmaceutical patents, low tech, etc. Nevertheless, the book is a worthwhile read, particularly for inventors and investors (NPEs?) in the much traded and litigated field of telecommunication patents.
I have a peer reviewed Review of the book in the Journal of Intellectual Property Law & Practice, which may be read here.
The book itself is available from Amazon here for a mere $104.50, which isn’t a lot when compared to value of patents or the cost of obtaining them.