Michelle Lee, the head of the United States Patent and Trademark Office resigned on June 6, 2017, apparently effective the same day.

Michelle Lee was a favorite of large technology companies, many of which lobbied to keep her in place during a Trump administration.  By contrast, many inventors and biotechnology companies were unhappy with how she implemented the post-grant review procedures under the America Invents Act, going so far as to call the “IPR” process a “patent death squad”.

Patents are a form of private property, and conservatives typically place a lot of emphasis on protecting private property.  It will be interesting to see who is next in line to head the USPTO