“To date, we have identified annual U.S. revenues of more than  $20 billion from what we believe are infringing products from such companies. Our robust intellectual property portfolio addresses vital aspects of the use of removable flash memory in portable devices, and we believe the number of infringing companies and associated revenues continues to grow annually.”

It's very interesting to note that the $20 billion figure is an ANNUAL figure, which continues in a growth phase.

This is not a number for the entire flash market but appears to be the figure just from infringing products.

How far back to the patents go?  LOL

 This is getting good !