Marc Ouellet Partner, Lawyer

Marc Ouellet Partner, Lawyer

Office

  • Montréal

Phone number

514 877-2911

Bar Admission

  • Québec, 2004

Languages

  • English
  • French

Practice areas

Profile

Partner

Marc Ouellet is a partner in the Labour and Employment Law Group. His practice focuses mainly on individual employment contracts (from hiring to termination of contract), labour standards, unfair competition and human rights.

He has advised and represented his clients in many disputes in matters of termination of employment, violation of non-competition and non-solicitation clauses or to obtain an injunction to end illegal picketing.

Mr. Ouellet also helps his clients with collective or individual bargaining, and he develops strategies to help them comply with various legislative requirements. He drafts contracts and policies for his clients, and generally gives them advice on all aspects of labour and employment law, for companies subject to federal and provincial law.

Throughout his career, spent in the corporate world and in law firms, he acquired extensive expertise in a wide range of industries, from transportation to financial institutions. He enjoys giving practical advice, based on his clients’ business reality, and he has the gift of being in tune with their operational concerns.

Distinctions

  • Best Lawyers in Canada in the area of labour and employment law since 2025
Best Lawyers 2026

Education

  • LL.B., Université de Montréal, 2002
  • B.A. (History), Université de Montréal, 1999

Boards and Professional Affiliations

  • Vice President of Fondation des Auberges du Cœur (Since 2015)
  1. It really is rocket science: Court rules in favor of employer concerning technology developed by former employee

    Following a series of urgent proceedings in late December and early January, the Quebec Superior Court issued an interesting decision1 on January 8, 2026, providing important clarifications on the scope of policies relating to intellectual property, confidential information and conflicts of interest, as well as on the duties of loyalty and confidentiality set out in employees’ employment contracts. The facts Concordia University (“Concordia”) sought a provisional injunction from the Court against a former employee and student, Mr. Oleg Khalimonov, as well as against Polaris Aerospace Inc. (“Polaris”), a company of which he was a director and shareholder. Mr. Khalimonov was employed by Concordia from September 2023 to December 2025. He had also been a student at the University since 2016 and, since 2023, he had served as Program Leader for Space Concordia, one of the University’s student associations. The group received significant public visibility with the launch of Starsailor in August 2025, described as the first rocket launch from Canadian soil in twenty-five years. These research and development activities are said to have generated significant intellectual property and attracted interest from commercial partners looking to invest in Concordia’s projects. In December 2025, Concordia was informed that Polaris was claiming in the market it had acquired Space Concordia’s intellectual property and as the entity behind the Starsailor project. On December 16, 2025, Concordia formally notified Mr. Khalimonov that his dual role with Polaris and Space Concordia raised serious concerns about potential breaches of his employment contract, the University’s Intellectual Property Policy, and its Conflict of Interest Policy. This process led to Mr. Khalimonov’s resignation as Program Leader for Space Concordia on December 18, 2025. On December 29, 2025, Polaris submitted a bid under the Launch the North initiative, a program of the Government of Canada’s Department of National Defense providing for a total of 105 million dollars in investments and grants over three years. Concordia asked the Court to order Polaris and Mr. Khalimonov to: Cease any use of proprietary or confidential information belonging to the University. Withdraw Polaris’s bid; and Remit any documentation in their possession relating to Space Concordia and/or the Starsailor project. Analysis of the criteria applicable to the provisional injunction The Court concluded that issuing the requested provisional injunction was appropriate and that Concordia had met its burden of proof. The evidence clearly showed that Mr. Khalimonov had played a central role in the University’s rocketry initiatives and that he had never formally disclosed to Concordia his simultaneous involvement with Polaris. He had undertaken to comply with strict obligations to Concordia regarding intellectual property and proprietary information, including keeping such information strictly confidential during and after his employment and acknowledging that any intellectual property developed in the course of his employment would remain Concordia’s exclusive property, with no vested rights accruing to him. Mr. Khalimonov also had to comply with university policies, including the Conflict of Interest Policy and the Intellectual Property Policy. The latter provided that the “Inventors” of “Qualifying Inventions” were deemed to have automatically assigned to Concordia the related intellectual property. The Court found that Starsailor constituted a “Qualifying Invention”, and that Mr. Khalimonov met the definition of an “Inventor” within the meaning of that policy. It also found that Polaris’s proposal used intellectual property and confidential information belonging to Concordia. In that context, the Court considers, on a prima facie basis, that Mr. Khalimonov had breached his obligations arising from his employment contract, the Intellectual Property Policy, and the Conflict of Interest Policy. The Court also concluded that refusing to grant the provisional injunction would result in the submission of competing proposals under the Launch the North initiative, creating significant uncertainty as to the ownership of the intellectual property upon which those proposals were based, and thereby causing irreparable harm to Concordia. It found that the balance of inconvenience favored Concordia and supported granting the requested provisional injunction, since the absence of a provisional injunction would likely lead to the disqualification of both Polaris’s and Concordia’s proposals due to unresolved competing claims regarding the intellectual property. Conclusions The Court granted Concordia University’s application for a provisional injunction and ordered, among other things, that Mr. Khalimonov and Polaris cease disseminating false statements suggesting that Polaris held any rights whatsoever in Concordia’s intellectual property, including in relation to Space Concordia’s rocketry projects. It also ordered Mr. Khalimonov and Polaris to cease using Concordia’s intellectual property (including for Space Concordia’s rocketry projects), as well as any confidential or proprietary information belonging to Concordia. Finally, it ordered the immediate withdrawal of Polaris’s submission filed under the Launch the North project. General Principles — Ownership of Inventions In Canada, except for inventions developed by federal public servants, ownership of inventions is derived from inventorship. Thus, the starting point for ownership of an invention lies with the inventor(s), who may subsequently transfer their rights. For Canadian federal public servants, inventions produced by a federal employee in the course of their employment are “vested in Her Majesty in right of Canada” and therefore belong to the federal government, pursuant to the provisions of the Public Servants Inventions Act. However, the Patent Act contains no comparable express provisions regarding ownership of an invention developed by an employee in the course of employment. The case law has established the general principle mentioned above: in the absence of a valid agreement relating to such rights in the context of employment ownership of an invention  vests in the employee who created it, unless the employee was “hired to invent.” The leading case in this respect is the Federal Court’s decision in Comstock2. In that case, the Court noted that the nature and context of the employer–employee relationship could be analyzed using various factors in order to determine whether an employee had indeed been “hired to invent.” Such a determination can be complex and remains uncertain, since each case depends on its particular facts. It is therefore always prudent to put in place an agreement governing ownership of inventions developed in the course of employment. Key Takeaway   Concordia University’s success in its application for a provisional injunction underscores the importance for employers of including robust intellectual property and confidentiality clauses in employment contracts. This decision is a reminder that it is not enough to rely on general principles: employers are well advised to draft comprehensive, clear, and operational provisions governing (i) the ownership and assignment of intellectual property rights, (ii) the definition and handling of confidential information, and (iii) the rules applicable during employment and after its termination. It is just as crucial that these policies and undertakings (intellectual property, confidentiality, conflicts of interest) be brought to the employee’s attention at the time of hiring, properly incorporated into or referenced in the employment contract, and easily accessible at all times. These contractual mechanisms complement the duties of loyalty and confidentiality set out in article 2088 of the Civil Code of Québec, which continue to apply after the end of the employment contract—but whose scope often remains insufficient in specialized sectors where intellectual property issues are decisive. In short, this case shows that, without well-structured contractual clauses, Concordia would have had much greater difficulty asserting its rights and obtaining the withdrawal of Polaris’s competing submission under Launch the North. Concordia University v. Polaris Aerospace Inc., 2026 QCCS 30. Comstock Canada et al. v. Electec Ltd. and Hyde, (1991) 45 F.T.R. 241 (TD).

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  1. 86 Lavery lawyers recognized in The Best Lawyers in Canada 2026

    Lavery is pleased to announce that 86 of its lawyers have been recognized as leaders in 42 areas of expertise in the 20th edition of The Best Lawyers in Canada in 2026. This ranking is based entirely on peer recognition and rewards the professional achievements of the country's top lawyers. Three partners from the firm were named Lawyer of the Year in the 2026 edition of The Best Lawyers in Canada directory: Josianne Beaudry: Mining Law  Marie-Josée Hétu: Labour and Employment Law  Jonathan Lacoste-Jobin: Insurance Law See below for a complete list of Lavery lawyers and their areas of expertise. Please note that the practices reflect those of Best Lawyers. Geneviève Beaudin: Employee Benefits Law / Labour and Employment Law  Josianne Beaudry: Mergers and Acquisitions Law / Mining Law / Securities Law  Geneviève Bergeron: Intellectual Property Law  Laurence Bich-Carrière: Administrative and Public Law / Class Action Litigation/ Construction Law / Corporate and Commercial Litigation / Product Liability Law  Dominic Boisvert: Insurance Law  Luc R. Borduas: Corporate Law / Mergers and Acquisitions Law  René Branchaud: Mining Law / Natural Resources Law / Securities Law  Étienne Brassard: Equipment Finance Law / Mergers and Acquisitions Law / Project Finance Law / Real Estate Law / Structured Finance Law / Venture Capital Law  Jules Brière: Aboriginal Law / Indigenous Practice / Administrative and Public Law / Health Care Law  Myriam Brixi: Class Action Litigation / Product Liability Law  Benoit Brouillette: Labour and Employment Law  Marie-Claude Cantin: Construction Law / Insurance Law  Brittany Carson: Labour and Employment Law  André Champagne: Corporate Law / Mergers and Acquisitions Law  Chantal Desjardins: Advertising and Marketing Law / Intellectual Property Law  Jean-Sébastien Desroches: Corporate Law / Mergers and Acquisitions Law  Raymond Doray: Administrative and Public Law / Defamation and Media Law / Privacy and Data Security Law  Christian Dumoulin: Mergers and Acquisitions Law  Alain Y. Dussault: Intellectual Property Law  Isabelle Duval: Family Law / Trusts andEstates  Ali El Haskouri: Banking and Finance Law / Venture Capital Law  Philippe Frère: Administrative and Public Law  Simon Gagné: Labour and Employment Law  Nicolas Gagnon: Construction Law  Richard Gaudreault: Labour and Employment Law  Julie Gauvreau: Biotechnology and Life Sciences Practice / Intellectual Property Law  Marc-André Godin: Commercial Leasing Law / Real Estate Law  Caroline Harnois: Family Law / Family Law Mediation / Trusts and Estates  Alexandre Hébert: Corporate Law / Mergers and Acquisitions Law / Venture Capital Law  Marie-Josée Hétu: Labour and Employment Law / Workers' Compensation Law  Édith Jacques: Corporate Law / Energy Law / Mergers and Acquisitions Law / Natural Resources Law  Marie-Hélène Jolicoeur: Labour and Employment Law / Workers' Compensation Law  Isabelle Jomphe : Advertising and Marketing Law / IntellectualProperty Law  Nicolas Joubert: Labour and Employment Law  Guillaume Laberge: Administrative and Public Law  Jonathan Lacoste-Jobin: Insurance Law  Awatif Lakhdar: Family Law / Family Law Mediation  Marc-André Landry: Alternative Dispute Resolution / Class Action Litigation / Construction Law / Corporate and Commercial Litigation / Product Liability Law  Éric Lavallée: Privacy and Data Security Law / Technology Law  Myriam Lavallée: Labour and Employment Law  Guy Lavoie: Labour and Employment Law / Workers' Compensation Law  Jean Legault: Banking and Finance Law / Insolvency and Financial Restructuring Law  Carl Lessard: Labour and Employment Law / Workers' Compensation Law  Josiane L'Heureux: Labour and Employment Law   Paul Martel: Corporate Law  Zeïneb Mellouli: Labour and Employment Law / Workers' Compensation Law  Isabelle P. Mercure: Tax Law / Trusts and Estates  Patrick A. Molinari: Health Care Law  Marc Ouellet: Labour and Employment Law  Luc Pariseau: Tax Law / Trusts and Estates  Ariane Pasquier: Labour and Employment Law  Martin Pichette: Corporate and Commercial Litigation / Insurance Law / Professional Malpractice Law  Élisabeth Pinard: Family Law / Family Law Mediation  François Renaud: Banking and Finance Law / Structured Finance Law  Marc Rochefort: Securities Law  Judith Rochette: Alternative Dispute Resolution / Insurance Law / Professional Malpractice Law  Ouassim Tadlaoui: Construction Law / Insolvency and Financial Restructuring Law  David Tournier: Banking and Finance Law  Vincent Towner: Commercial Leasing Law  André Vautour: CorporateGovernance Practice / Corporate Law / Energy Law / Information Technology Law / Intellectual Property Law / Private Funds Law / Technology Law / Venture Capital Law  Bruno Verdon: Corporate and Commercial Litigation  Sébastien Vézina: Mergers and Acquisitions Law / Mining Law / Sports Law  Yanick Vlasak: Banking and Finance Law / Corporate and Commercial Litigation / Insolvency and Financial Restructuring Law  Jonathan Warin: Insolvency and Financialanick Vlasak: Banking and Finance Law / Corporate  We are pleased to highlight our next generation, who also distinguished themselves in this directory in the Ones To Watch category: Anne-Marie Asselin: Labour and Employment Law (Ones To Watch) Rosemarie Bhérer Bouffard: Labour and Employment Law (Ones To Watch) Frédéric Bolduc: Labour and Employment Law (Ones To Watch) Marc-André Bouchard: Construction Law (Ones To Watch) Céleste Brouillard-Ross: Construction Law / Corporate and Commercial Litigation (Ones To Watch) Karl Chabot: Construction Law / Corporate and Commercial Litigation / Medical Negligence (Ones To Watch) Justine Chaput: Labour and Employment Law (Ones To Watch) James Duffy: Intellectual Property Law (Ones To Watch) Francis Dumoulin: Corporate Law / Mergers and Acquisitions Law (Ones To Watch) Joseph Gualdieri: Mergers and Acquisitions Law (Ones To Watch) Katerina Kostopoulos: Banking and Finance Law / Corporate Law (Ones To Watch) Joël Larouche: Construction Law / Corporate and Commercial Litigation (Ones To Watch) Despina Mandilaras: Construction Law / Corporate and Commercial Litigation (Ones To Watch) Jean-François Maurice: Corporate Law (Ones To Watch) Jessica Parent: Labour and Employment Law (Ones To Watch) Audrey Pelletier: Tax Law (Ones To Watch) Alexandre Pinard: Labour and Employment Law (Ones To Watch Camille Rioux: Labour and Employment Law (Ones To Watch) Sophie Roy: Insurance Law (Ones To Watch) Chantal Saint-Onge: Corporate and Commercial Litigation (Ones To Watch) Bernard Trang: Banking and Finance Law / Project Finance Law (Ones To Watch) Mylène Vallières: Mergers and Acquisitions Law / Securities Law (Ones To Watch) 

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  2. Lavery Advises Technicolor Canada on the Sale of Mikros Animation

    This March 25th, 2025, the Superior Court of Quebec approved the sale of "Mikros Animation", the cartoon animation division of Technicolor Canada, Inc., a Canadian subsidiary of the Technicolor Group. Lavery had the privilege of advising Technicolor Canada on this transaction, which was part of the court-ordered reorganization of the corporations that make up the Technicolor Group. Simultaneously with the acquisition of the assets of the "Mikros Animation" division in Quebec, the buyer, RodeoFx, will also acquire the assets of the "Mikros Animation" division in France. This would greatly facilitate the closing of the transaction, considering that the Technicolor group is an internationally integrated company. Still due to the international component of the "Mikros Animation" division's operations, this simultaneous acquisition of it's assets in Quebec and France required the unprecedented collaboration of the Tribunal des Activités Économiques de Paris and the Quebec Superior Court. Completion of the transaction will ensure the continued operation of the "Mikros Animation" division in both Quebec and France and preserve up to 207 jobs in Montreal in the specialized field of animation, in addition to the 80 jobs in the "Mikros Animation" division in France. The Lavery team led by Sébastien Vézina and Jean Legault also included Martin Pichette, Marc Ouellet, Jessica Parent, Ouassim Tadlaoui, David Tournier, David Choinière, Jean-Paul Timothée and Yasmine Belrachid. About Lavery Lavery is the leading independent law firm in Québec. Its more than 200 professionals, based in Montréal, Québec City, Sherbrooke and Trois-Rivières, work every day to offer a full range of legal services to organizations doing business in Québec. Recognized by the most prestigious legal directories, Lavery professionals are at the heart of what is happening in the business world and are actively involved in their communities. The firm's expertise is frequently sought after by numerous national and international partners to provide support in cases under Québec jurisdiction.

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  3. Lavery welcomes a new partner to the Labour and Employment Law group

    Lavery is pleased to welcome Marc Ouellet as a partner to our Labour and Employment Law group. Mr. Ouellet has over twenty years of experience in all aspects of labour and employment law, particularly in the areas of labour standards, human rights, duty of loyalty, and restrictive employment clauses. Throughout his career, he has gained experience working for both private companies and law firms and has advised numerous clients in disputes involving termination of employment, in addition to assisting with collective and individual negotiations. "Marc has built solid expertise across a wide range of industries, from transportation to financial institutions. He enjoys offering actionable insights grounded in his clients' business realities and has a strong ability to understand and address their operational concerns. He will support our Labour and Employment Law team serving our Quebec clients and foreign companies doing business in Quebec," said Benoit Brouillette, Head of Practice for the Labour and Employment Law group. "I am thrilled to be joining Lavery, a reputable firm that has established a strong track record of excellence in both Quebec and Canada. The firm's Labour and Employment Law team has demonstrated not only great depth, but great synergy as well. I look forward to leveraging my skills and expertise to support Lavery's clients," said Marc Ouellet. About Lavery Lavery is the leading independent law firm in Quebec. Its more than 200 professionals, based in Montréal, Quebec, Sherbrooke and Trois-Rivières, work every day to offer a full range of legal services to organizations doing business in Quebec. Recognized by the most prestigious legal directories, Lavery professionals are at the heart of what is happening in the business world and are actively involved in their communities. The firm's expertise is frequently sought after by numerous national and international partners to provide support in cases under Quebec jurisdiction.

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