Maybe one could look at how many customers elect to licence the patents vs how many are litigated into being customers. Or look at the availability of the paten

Maybe one could look at how many customers elect to licence the patents vs how many are litigated into being customers. Or look at the availability of the patents for license. If a company holds a lot of patents, has no technical staff to develop products, and doesn't have sales staff to try to license their IP in any markets, we might conclude the company is a non-practicing entity whose only purpose is the litigate their way to customers.