Skybell Technologies Inc. lost part of a patent on video doorbell technology at the Patent Trial and Appeal Board, suffering another setback in its dispute with rival Ring LLC, a unit of
The board said SkyBell asked to cancel patent claims that Ring challenged after being sued for infringement. The PTAB agreed, but in its July 17 decision refused SkyBell’s request to replace those claims with substitutes that the board said failed to meet certain requirements.
Amending patents during inter partes review and other America Invents Act proceedings has been an uphill battle for patent owners. The board ...