Question relates to the use of PostCSS in React.
Context:
There are lots of plugins done by Johnathan Neal ( but these plugins are CC0-1.0 licensed.
In section 4.a of the license states "No trademark or patent rights held by Affirmer are waived, abandoned,
 surrendered, licensed or otherwise affected by this document."Question 1: Is PostCSS thus patent encumbered  by the use of Neal's libraries or any CC0-1.0 library for that matter?
Question 2: PostCSS can be seen as a "compiler" in that it transmutes CSS source code. Is this seen as a business process, which can be patentable?
Question 3: And the use of this business process, the produced artefact (the "compiled" CSS) is shipping that CSS liable for any 
patent royalties?
Question 4: Are there any projects that removed the CC0-1.0 libraries from PluginCSS which I can follow?Thanks for any insights. The last thing I want to do is to make an app and my employer gets sued.