Take Your First Step

Grow Your Business with Innovative Intellectual Property Solutions

Heer Law is a Toronto-based intellectual property law firm dedicated to helping businesses grow and profit through intellectual property law, intellectual property litigation, patent agent and trademark agent services. We know any business can be made better by intellectual property and we work with you to figure out how.

We help businesses reach their full potential through effective acquisition, management, use and enforcement of intellectual property rights. Our services will help you protect and develop your intellectual property into formidable business and financial assets. When your intellectual property rights are infringed, we help you stop the infringer and obtain monetary compensation for the infringements. And if you are alleged to infringe, we help you defend and counter the allegations.
The firm was founded by Christopher Heer, who is a Canadian intellectual property lawyer, and a registered patent agent and registered trademark agent in Canada and the United States. He is noted for excellence in advising on intellectual property matters relating to information technology and is a patent lawyer designated by the Law Society of Ontario as a certified specialist in patent law. His team of highly qualified lawyers and agents are here to help you with any and all of your intellectual property needs.

Investing in your intellectual property is an investment in your success. Let us help you turn your ideas into assets!

We assess the patentability of new innovations, prepare and file patent applications, and advise on patent strategy and infringement issues. More about our Patent services »


We help you determine if trademarks are available to adopt and use and help you obtain trademark protection in Canada and abroad. More about our Trademark services »


We help you stop your competitors from infringing your intellectual property rights as well as defeat infringement claims made against you. More about our IP Litigation services »


We advise on all types of copyright issues and have the requisite technical expertise to analyze software and other digital works. More about our Copyright services »


We identify protectable designs and obtain design protection in Canada, the United States and elsewhere around the world. More about our Industrial Design services »


We draft and advise on assignments and licences of intellectual property rights, as well as joint ownership and non-disclosure agreements. More about our IP Agreement services »

Legal Updates

Dominic Cerilli
September 8, 2020 — Heer Law is pleased to welcome intellectual property lawyer Dominic Cerilli to the firm.

Annette Latoszewska
August 31, 2020 — Heer Law is pleased to welcome articling student Annette Latoszewska to the firm.

Malcolm Harvey
July 6, 2020 — Heer Law is pleased to welcome intellectual property litigation lawyer Malcolm Harvey to the firm.

IAM Patent 1000 2020 Ranking
June 12, 2020 Christopher Heer was recognised as a leading patent professional in Canada in IAM Patent 1000's 2020 rankings.

Recent Work

Representing a plaintiff in Federal Court copyright litigation concerning fleet tracking software

Representing a defendant in the cannabis industry in Federal Court trademark litigation

Preparing, filing and prosecuting United States, Canadian and PCT patent applications relating to quantum computing, neural networks, computer vision, secure financial transactions, alert systems, fluid technologies, blockchain-related technology, computer networking equipment, children’s products, pet care products, winter outdoor accessories, safety products, educational games, vertical garden technology and health care products

Preparing, filing and prosecuting Canadian trademark applications relating to goods and services in health and wellness, cannabis, building, design and construction, mobile and cloud-based software, educational products, wedding and baby, fintech, gourmet foods, clothing, oil, gas and mining