In late 2015, WiLAN announced that, beginning in October 2015, it would undergo a significant company restructuring. As part of this restructuring, WiLAN announced that it would spin off its research and development unit and cut its dividend to shareholders. The restructuring would affect 30 per cent of WiLAN's workforce. The company would also focus on licensing patent portfolios owned by other companies and helping companies monetize their patents. In April 2017, WiLAN acquired International Road Dynamics, a Saskatoon-based road traffic management system engineering company, for $63.5 million. In May 2017, it acquired VIZIYA, a software services provider, for $40 million. These acquisitions were part of a broader restructuring at WiLAN from a patent licensing company to a more diversified technology holding company, specializing in the industrial Internet of Things. As part of the restructuring, WiLan was renamed Quarterhill, although the Will Inc., was created, which contains WiLan Inc., International Road Dynamics, and VIZIYA as subsidiaries. In October 2019, Quarterhill announced that Doug Parker had resigned as President and CEO of Quarterhill. Parker was hired as CEO in January 2018. The company also announced that Parker had resigned from Quarterhill's board at the same time. Quarterhill's principal business is patent licensing, through its WiLAN subsidiary. Its business model is to acquire technology patents, and then license them to companies who use them. The model relies on the threat of legal action against companies who use its patents without permission. It has thus sometimes been described as a patent troll, because it profits from patents, but does not commercialize or develop technologies itself. As of 2015, WiLAN had more than 250 licencees.