Obama goes after patent trolls

The White House announced a set of executive actions and policy recommendations Tuesday aimed at preventing certain patent-holding firms, known as “patent trolls” to their detractors, from abusing the patent system.

The Obama administration’s actions are intended to target firms that have forced technology companies, financial institutions and others into costly litigation to protect their products. These patent-holding firms amass portfolios of patents and focus on pursuing licensing fees rather than using the patents to build new products.