LL thats all well and good . The bottom line again is that DM Conducted their dd. From that they determined that their time and effort  in these infringement cases will be worth their while. The more I read your posts the more I see that you are a naysayer. There are  some patents in the portfolio that are 19 years old. That means that if a company is found to have infringed they will have to pay now and retroactive for all the years they infringed on the patent. This in my eyes can be huge so I tend to look at things in a positive light vrs a naysayer or negative light . If Intc ( just an example) was found to have infringed and sold the tech to 30 companies and they all profited EDIG will have to be made whole period end of story !!!