A trio of big box stores have topped this week’s list of companies seeing the most litigation in Pennsylvania federal courts, according to Law.com Radar, ALM’s legal news feed. Also, for the first time since Law.com Radar began, the list of the most active firms in the region is made up entirely of Pennsylvania-based firms.

To follow key industries, practice areas, law firms, companies and regions, sign up for Law.com RadarIn the meantime, here’s what’s been happening recently in Pennsylvania.