"PTSC did not have to sue TPL. Some believe it accomplished nothing as far as benefits to PTSC shareholders. Why did they choose that route? "

Without proof, but looking at the filing and then the secretive and costly (to PTSC) result of the "settlement", one reason could have been to try to create an audit trail to show that the BOD was "looking out for shareholders" just in case somewhere down the line they might be accused of not so doing.

Supposedly as part of the "settlement" PTSC gets to have more control over licensing. Is that why we're not seeing licenses any more?

Just thoughts.....