The big question is how they could get a patent for something that has been in existence for two decades.
I'm sure thier "patent" is in conflict of a patent that was existing before thiers.
Often times a patent is granted for things that are currently public domain if it is not widely known it is in use. There was a famous patent case against the Ford motor company because a group of investors had a patent for a motor powered car. After initially being found guilty of infringement, the case was later appealed and under the Apeal, Ford successfully argued that the patent was too broad, and useless since it patented no actual design, just the concept of a car. I would think in this case the Code developers can only patent the actual agorythms for employing their idea, not the idea itself. A similar case was brought By Apple who sued Microsoft over the "look and feel" of a mouse operated OS, with drop down windows. Apple lost.
This Patent doesn't sound like it's worth the paper it's printed on.