Professional
It is our mission to combine deep engineering insight with disciplined legal analysis to transform complex innovations into precise, enforceable patent rights. Each engagement is driven by technical rigor, strategic judgment, and a prosecution-first mindset focused on claim strength, durability, and long-term commercial value.
Registered Patent Agent
David & Raymond Patent Firm + Institute of Intellectual Property (President)
Zhongguancun Intellectual Property Strategy Research Institute (Foreign President)
Feng Chia University (Adjunct Professor)
East China University of Political Science and Law (Visiting Professor)
Zhejiang Wanli University (Visiting Professor)
Raymond Y. Chan
Bachelor of Science in Mechanical Engineering
Master of Science in Information Technology
L.LM (Master of Law)
Juris Doctor
raymondc@davidandraymond.com
Patent Attorney
Attorney at Law (Pennsylvania, New York)
Raychan IP Law Firm (President)
David & Raymond Patent Firm (Senior Patent Attorney)
Patricia L. Ray
patriciaray@raychaniplaw.com
patriciar@davidandraymond.com
Attorney at Law (California)
IP Lawyer (China)
David & Raymond Patent Firm
Joanne Zheng
joannez@davidandraymond.com
Associate US Registered Patent Agent
David & Raymond Patent Firm
John Richardson
johnr@davidandraymond.com