They list a number of patents, and the 4,937,819 issued June 1990 is not relevant, as it is public domain now by law. Patent 5,243,627 issued in Sept 1993 is long in tooth and may have expired or is close to expiring. However, patents 5,719,858 and 5,852,631 issued in 1998 are still alive and well. I wonder if someone could toss out the troll lawsuit on the basis of fraudlent claims if public domain patents were cited?
16 years ago