SAN FRANCISCO — A $1.5 billion patent judgment finalized against Marvell Technology Group Ltd. this year is so juicy, plaintiffs securities lawyers can’t seem to stay away.

A Pennsylvania jury found Marvell willfully infringed two Carnegie Mellon University patents for hard-drive technology in 2012 and awarded the university $1.17 billion in damages. In March, U.S. District Judge Nora Barry Fischer of the Western District of Pennsylvania upped the award.