Head of IP practice Tony Yeo and Director Meryl Koh author Singapore Chapter in The Legal 500: Patent Litigation Country Comparative Guide 14 Nov 2019 Head of IP practice, Tony Yeo, and Meryl Koh, Director of Drew & Napier’s Intellectual Property and Dispute Resolution practices, authored the Singapore Chapter in The Legal 500: Patent Litigation Country Comparative Guide. The Chapter provides an overview of the legal framework and key issues surrounding patent litigation law in Singapore. They include, but not limited to, the following questions: What are the key grounds of patent invalidity? What are the key defences to patent infringement? What is the typical timeline and form of first instance patent litigation proceedings? Can a patentee seek to amend a patent that is in the midst of patent litigation? Explore the chapter here.