Osha Attorneys
Osha Attorneys
Osha Attorneys
Osha Attorneys
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The collective expertise of our global team distinguishes OBWB in the field of Intellectual Property Law. We align our best resources to meet each client's specific needs and we treat each matter with the highest degree of attention and care.

12600 Hill Country Blvd.
Suite 275, Austin   TX 78738
P: 512.480.0667
F: 713.228.8778

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Osha Liang LLP
1200 Pearl St. Ste. 314
Boulder, CO   80302
P: 713.228.8600
F: 713.228.8778

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8/F, Hangzhou Kerry Center
385 Yan An Rd.
Hangzhou, China   310006
P: +86.571.2689.2537
F: +86.571.2689.2700

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Two Houston Center
909 Fannin
Suite 3500, Houston   TX 77010
P: 713.228.8600
F: 713.228.8778

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2 Rue de la Paix
75002 Paris, France
P: +33.1.4494.8630
F: +33.1.4494.8631

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Level 28 Shinagawa Intercity Tower A
2-15-1 Konan Minato-ku
Tokyo, Japan   108-6028
P: 81.3.6717.2877
F: 81.3.6717.2878

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1701 Pennsylvania Ave.
NW Suite 200
Washington, DC   20006
P: 713.228.8600
F: 713.228.8778

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Hailong  Sun

Mr. Sun has 20 years of experience in patent prosecution, patent invalidation and litigation, patent infringement analysis, trademark prosecution and litigation.

Prior to joining Osha Bergman Watanabe & Burton (OBWB), Mr. Sun gained considerable experience in patent prosecution and Chinese IP litigation while working at another prominent IP firm. His areas of technical expertise include: electronic engineering, semiconductors, computers, information and communication.


Over the course of his career, Mr. Sun has handled patent prosecution matters for a wide range of major domestic and overseas clients in the fields of electronics, computing, and telecommunications.  He has also handled many patent invalidation and litigation matters in China.

  • Chicago Kent College of Law, LLM Degree, 2014
  • Beijing University of Aeronautics and Astronautics, Bachelor’s Degree, 1995