Domestic drone countermeasures
Domestic Drone Countermeasures is an Oregon company offering "Multi-layer Drone Shields and Countermeasure Domes for Large area, Small area, Open Area, Mobile, Fixed or Built in to structures using several DDC LLC Proprietary technologies."
Their vaguely paranoid sounding press release says
Domestic drones are the commercialization of military technologies to be used against the citizens of the United States by various entities. Domestic Drone Countermeasures, LLC (www.DomesticDroneCountermeasures.com) (DDC) has taken on the task of commercializing military technologies for use as domestic drone countermeasures.
DDC offers many different, large area, small area, mobile and fixed drone countermeasures and systems. All countermeasures are non-offensive, non-combative and not destructive. Drones will not fall from the sky, but they will be unable to complete their missions.
DDC’s countermeasures are highly effective and undefeatable by most current domestic drone technologies.
Multiple layer systems ensure success by impeding typical drone sensors, infrared and camera capability and their effectiveness.
Due to the growth of drone technology, the domestic drone countermeasure market is expected to grow quickly. In fact, the countermeasure market is likely to be as large as the current drone market itself. DDC and others in the domestic drone countermeasure industry are likely to require significant capital investment for rapid growth to catch up with domestic drone development.
They won't reveal their technology unless you sign an NDA, but "drone shields" and "countermeasure domes" make me picture something like this, just bigger and made of mylar: