&gt;It certainly does sound like this is personal for Cheng &#x2F;&#x2F;<p>I don&#x27;t think I&#x27;d conclude that: effectively if someone is claiming a section of the &quot;public domain&quot; as private IP then they&#x27;re infringing on all of our rights (why don&#x27;t the public prosecute such cases?). It impacts Cheng&#x27;s company more, ergo they are suing - but it&#x27;s responsive rather than some sort of vendetta. It&#x27;s the opposite of personal if it doesn&#x27;t matter who took the action they would still sue.<p>An analogy in real property: Minero has taken a public park and put gates up and a notice saying it&#x27;s theirs. Cheng just happens to be the first to roll up wanting access to the park but it&#x27;s an affront to all those who might wish to use it.