5G patent sale sparks litigation against three Chinese smartphone makers Patents developed by Shanghai-based lab Langbo have been asserted in US court by a Texas NPE To read more Register for limited access Register to receive our weekly newsletter and access two of our subscriber-only articles per month. [Register now] Subscribe and start reading now Subscribe for unlimited access to articles, in-depth analysis and research from the IAM experts. [Subscribe now] Already have access? Login below Copyright © Law Business ResearchCompany Number: 03281866 VAT: GB 160 7529 10