Atty. Christopher Guerreiro
Christopher A. Guerreiro practises intellectual property dispute resolution and litigation, with an emphasis on patents and issues affecting the life sciences, healthcare, and other high-technology industries.
Profile Summary
About Christopher Guerreiro at a glance
Christopher Guerreiro is a real estate and ip attorney, practicing at Davies Ward Phillips & Vineberg LLP. Recognitions include Best Lawyers in America — Intellectual Property Law (2026).
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About
- Christopher A. Guerreiro practises intellectual property dispute resolution and litigation, with an emphasis on patents and issues affecting the life sciences, healthcare, and other high-technology industries
- Mr. Guerreiro has spent much of his career working with life sciences innovators
- As a litigator and advisor, he focusses on developing dispute-resolution strategies that align with the unique interests and business objectives of clients in this space—whether through litigation or a negotiated outcome
- Mr. Guerreiro has particular experience acting in complex patent infringement, impeachment, and damages disputes before Canada's federal courts
- Among them, he was counsel on the first series of patent infringement actions brought under section 6 of the new Patented Medicines (Notice of Compliance) Regulations
- In addition to small-molecule and biologic drug cases, his patent litigation and related work has also involved a range of other technologies such as medical devices, vaccines, gene therapy, energy, consumer technology, and software
- Mr. Guerreiro is regularly consulted on issues relating to the Patented Medicine Prices Review Board (PMPRB), and has acted as counsel in industry-wide administrative law challenges to regulations and guidelines governing the PMPRB
- More broadly, he also advises on other matters that are susceptible to litigation under the Patent Act and related legislation
- Mr. Guerreiro has been a member of the firm since joining as a summer student in 2011
- He is an editor of our Pharma in Brief bulletin and leads a number of programmes related to associate development, substantive legal knowledge, and team-building within the firm
- He is also an active contributor to process development and project management initiatives that drive efficiency in the delivery of legal services on complex mandates
Practice Areas Explained
Christopher Guerreiro's Areas of Practice
Each practice area below reflects the types of cases Christopher Guerreiro handles, with a brief overview of what that area of law covers.
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
Christopher Guerreiro is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys →
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Christopher Guerreiro is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys →
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