Partner | Patent Attorney | Attorney at Law


Telecommunication , Computer Science , Internet Technology , E-commerce , Artificial Intelligence , Big Data Processing , Electrical Engineering , Electronics Engineering , Semiconductor

TEL: 86-10-6268 1616

FAX: 86-10-6268 1818



Mr. Dongguo Liang joined Liu, Shen & Associates in August 2012. He mainly specializes in patent prosecution, re-examination, patent invalidation, patent licensing, IP litigation, and client counseling with a focus on semiconductors, electronic circuits, telecommunication, automation control, and computer science.

Mr. Dongguo Liang handles a number of cases related to patent examination, reexamination, invalidation, administrative litigation, infringement litigation, license, and other IP related matters during his work in the Law Firm. He represented Samsung against a large domestic communication enterprise in a series of patent invalidation cases and related infringement cases from 2016. During this period, Mr. Liang also involved in analyzing for hundreds of communication standard essential patents (SEPs) and commercial patents (NSEPs) to evaluate the validities of the patents. In 2018, Mr. Liang also participated in the series of patent invalidation cases with Apple on behalf of Qualcomm, and maintained the patent right of Qualcomm in his case relative with the memory dynamic word line driver.

Before joining Liu, Shen & Associates, Mr. Liang worked in China Sinda law firm for 4 years. He also had his internship at the Drinker&Biddle law firm in Philadelphia, USA from July to August, 2016.

Mr. Liang obtained his Master of Microelectronics from Institute of Microelectronics of Chinese Academy of Sciences in 2008, before that he got the Bachelor’s degree of Electronic Engineering from Tsinghua University in 2005. He also got his Master of Law from Temple University, USA in 2016, in order to provide better services to clients.


Representative cases:

-    2020, Onmicro V. Feixiang for a series of patent infringement and invalidation cases;

-    2016-2019, participating in a series of patent infringement and invalidation cases between Samsung Electronics V. a domestic communication enterprise;

-    2018, participating in a series of patent infringement and invalidation cases between Qualcomm V. Apple;

-    2017, Samsung v. Guangsheng for a patent of encoder.

Representative Publications and speech:

-    “Calculation of global licensing fees for SEP patents,” IPLEAD, January 2024;

-    “Frand case selection”,March 2018;

-    “How to apply provisional patent rights protection in China for foreign enterprises,” Japanese Edition of IAM-media, Nov.2015.

-    “Comparison of ownership of the Employees’ Inventions in Different Countries” on 2015 AIPPI China Youth IP Seminar.