Perfect Path Technologies: Omega E mat

You think Rambus is a good example, how about Virnetix (VHC).  They won four court cases against Apple for infringement.  The first two cases were retried as bifurcated patents.  Apple hasn't paid yet.  They owe $1 billion including mostly punitive damages and interest.  This infringement has been occurring over almost a decade on patented military software purchased by VHC.  Apple's continuous fight goes to attempting to bankrupt VHC.  Also, Apple could just buy VHC for under $200 million and forgo the damages but they just play hard ball and have the money to do so.

Another is Mylan's Epipen.  Mylan tweaked the epipen when it's patent was running out, just slightly and received a new patent.  Since then, Adamis and Teva received approval for their generic epipen's which also tweaked the patented epipen.  Production on the former hasn't begun and the latter is in the process while there exists a significant underproduction of the patented pen by Mylan.   

These are just two examples of patents and lawsuits. 

It is possible that the E-Mat has some formulation of TC embedded in it.  No one knows what TC is either.  As previously stated, tweaks are not viewed as investments by big companies or government agencies until they are a success or are their elements are known.  We should be glad that the E-Mat wasn't sold to Sony as it could just be buried after purchase and we wouldn't get to use it.  

“My only point is why in the world would someone sell something that does what is being claimed here without any legal protection at all?”

First, we don't know what legal protection may be in place. Secondly, others have already explained that, in some cases, keeping something secret may be a better option than seeking legal protection, through a patent or other means.

“ My guess and it's only a guess is there is nothing about these mats that can be patented. It's made from common everyday stuff.”

That is, as you said, only a guess.

He is not listening or understanding because he simply does not want to. I say we move on as sometimes folks have a notion and no amount of truth and reason will get through. This is at play here and now.