Pepper Hamilton, like many other firms, advises clients on both ends of the IP spectrum: prosecuting patent applications for product-rich Google on the one hand, and representing nonpracticing entities on the other. That makes good business sense, since both smartphone patent work and “troll” litigation are booming.

Pepper Hamilton recently expanded its client base a bit too far for Google’s liking, however, when it brought a batch of patent infringement suits against Google’s Android partners on behalf of a Wall Street-backed patent aggregator called Digitude Innovations.