USPTO Supposedly (and Quietly) Ends Official Obstructions to Perpetual Motion Machines

In an article reported at Ars Technica in March 2015 (History-making?):

http://arstechnica.com/tech-policy/2015/03/uspto-ends-program-for-patents-that-could-create-unwanted-media-coverage/

The former policies may have extended Microsoft's influence over Omni-Science products, and some of those policies may still be in place.