USPTO board accepts Hytera patent challenge

The Patent Trial and Appeal Board (“PTAB”) of the United States Patent and Trademark Office (“USPTO”) has accepted a third petition of global land mobile radio communications provider Hytera Communications Corporation Ltd. to review the validity of challenged claims in a patent of Motorola Solutions, Inc. (“MSI”) and has instituted inter partes proceedings (“IPR”) as of May 14, 2018, the company said.

The decision follows the PTAB´s institution of IPR May 10 on two other MSI patents challenged by Hytera.

In its petition, Hytera challenges the validity of claims in MSI´s US Patent No. 8,279,991, “Method of Efficiently Synchronizing to a Desired Timeslot in a Time Division Multiple Access Communication System” (“the ´991 Patent”). The claims at issue relate to time-division multiple access (“TDMA”) technology that allows multiple parties to communicate at the same time in a discrete timeslot, using a mutually exclusive synchronization pattern on equipment for sending and receiving messages.

TDMA features are a subset of widely adopted professional mobile radio (“PMR”) communications systems, often referred to as land mobile radio (“LMR”) systems. LMR systems are used by public safety personnel such as fire and police departments in emergency situations, as well as in the energy infrastructure industry and for other commercial applications.

Hytera is represented in its petitions regarding the ´991 Patent by Joshua L. Goldberg, E. Robert Yoches, Rachel L. Emsley, David C. Reese, and Yanbin Xu of Finnegan, Henderson, Farabow, Garrett & Dunner LLP.

Hytera Communications is a global provider of innovative professional land mobile radio (LMR) communications solutions to governmental organizations, public security institutions, and customers from other industries including transportation, oil and gas, and many others around the world. Founded in Shenzhen, China in 1993 and listed on the Shenzhen Stock Exchange (002583.SZ), Hytera has ten research and development centers around the world and has partnered with companies in the US since 2000. More information is at