 NEW YORK--BUSINESS WIRE--Labaton Sucharow, a nationally ranked and award-winning investor rights firm, is investigating potential securities violations and breach of fiduciary duty claims against Chinese search engine company Sogou Inc. NYSE: SOGO. If you currently own shares of SOGO and want to receive additional information and protect your investments free of charge, please contact David J. Schwartz using the toll free number 800 321-0476 or via email at About th 