Stephen YANG

Managing Partner / Patent Attorney

Email: Stephen Yang 


Working Experience

2017-present   Patent Attorney, Managing Partner, IP March

2016-2017        Patent Attorney, Managing Partner, Chofn Intellectual Property

2005-2016        Patent Attorney, Partner, Peksung Intellectual Property Ltd.

2000-2005        In-house Patent Specialist, Hydrogenics Corporation, Toronto, Canada

1997-2000       Patent Attorney, China Patent Agent (HK) Ltd.



1999                 registered to practice before the Chinese Patent Office


Education and Training

2005    studied US patent law in the USA

2004    Master's degree in Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada

1997    Double Bachelor's degrees in Mechanical Engineering and Industrial Engineering, Tsinghua University, Beijing, China


Practice Area

Patent search, drafting, prosecution, reexamination, invalidation and litigation in a wide variety of technical fields, particularly general machines, energy, electronics and high tech areas.

Extensive experience in design patent practice

Consulting on corporate IP strategy and portfolio management



Chinese (native), English, Japanese



Member of All-China Patent Agents Association (ACPAA)

Member of AIPPI China

Member of LES China



"Amendments to the Guidelines for Patent Examination", Managing the IP Lifecycle, 2017 

"Service Invention in China - Current Provisions & Proposed Changes", les Nouvelles, June 2017 

"Design Patent for GUI: Challenges and Hope", The Asian Lawyer, July 2015 

Lead author, "Patents", Chapter 1 in "IP Protection in China", Donna P. Suchy, ed., 1st ed., ABA Publishing, 2015 

"New Draft Fourth Amendment to the Chinese Patent Law", Asia IP, April 2015 

Co-author, "Protecting the Border", World Intellectual Property Review Annual, 2015 

"Patenting Software in China: the Challenges of Drafting", IPPRO TheInternet, Issue 47, September 2014 

"Patent Law and Regulations Continue to Change", World Intellectual Property Review e-Digest, 2013 

"Impact of New Provisions", China IP Focus, 2012 

"Utility Model Practice in China", The Asian Lawyer, January 2012 

Co-author, "Patent Protection in China", Intellectual Property Magazine, September 2011 

"Recent Trends at the State Intellectual Property Office", World Intellectual Property Review - BRIC Report, 2011 

"Becoming a True IP Giant", World Intellectual Property Review Digest, 2010 

"Examination Guidelines Overhauled", China IP Focus, 2010 

"Slow Progress in China", World Intellectual Property Review Digest, 2009 

"Overlooked but Powerful Tool", China IP Focus, 2009 

"Milestone Year in China's IP History", World Intellectual Property Review Digest, 2008 

Frequent contributor of "Jurisdiction Report - China" in World Intellectual Property Review since September 2008