December 1, 2011 - Asset management company Research Affiliates LLC filed a patent infringement lawsuit against WisdomTree Investments, Inc. in the U.S. District Court for the Central District of California. Research Affiliates claims that WisdomTree infringes three patents related to methods and systems for index-based investing.
The case is Research Affiliates v. WisdomTree Investments, 11-01846, U.S. District Court, Central District of California, Southern Division (Santa Ana).