DWW Ranked Best Law Firm in Canada by Best Lawyers, 2026
DWW Ranked Best Law Firm in Canada by Best Lawyers, 2026
DWW Partner Jennifer Davidson Receives OBA Rising Star Award in IP and IT Law
DWW Partner Jennifer Davidson Receives OBA Rising Star Award in IP and IT Law
Nine Lawyers recognized in The Best Lawyers in Canada, 2026
Nine DWW Lawyers named in the 2026 Edition of The Best Lawyers in Canada (TM)
DWW Recognized as one of the Best Law Firms in Toronto by Best Lawyers 2026
DWW Recognized as one of the Best Law Firms in Toronto by Best Lawyers 2026
Ideas won't keep. Something must be done about them. This is where we come in.
The vitality of thought is in adventure. Ideas won't keep. Something must be done about them. Alfred North Whitehead (1861-1947) This is where we come in. Deeth Williams Wall
Deeth Williams Wall has received awards and accolades from several national and international industry publications including Best of the Best, Who's Who Legal, Best Lawyer, Lexpert Guide to Leading Lawyers, Chambers Global, Canadian Lawyer and IP Stars.
Deeth Williams Wall has received awards and accolades from several national and international industry publications including Best of the Best, Who's Who Legal, Best Lawyer, Lexpert Guide to Leading Lawyers, Chambers Global, Canadian Lawyer and IP Stars.
DWW Welcomes Gary Daniel as a Partner of the Firm
DWW Welcomes Gary Daniel as a Partner of the Firm

Recent Insights

Maple Washing Of Food Labels: New Canadian Scrutiny Maple Washing Of Food Labels: New Canadian Scrutiny

Regulatory Law
– April 22, 2026April 22, 20262026-04-22
“Maple Washing” of product labelling and advertising is attracting greater scrutiny from Canadian regulators and the media. As will be apparent to anyone who follows Canadian news, there has been a lot of public focus since September of 2025 on instances of incorrectly labelling foods as “made in” or “product of” Canada, when they are not of Canadian origin. The media coined the term “Maple Washing” for this phenomenon. The concern has mostly been about foods, but the sobriquet is used for other products as well.
Deeth Williams Wall https://www.dww.com/articles/maple-washing-of-food-labels-new-canadian-scrutiny

New CIPO Practice Notice On Patentable Subject-Matter New CIPO Practice Notice On Patentable Subject-Matter

Patents
– April 22, 2026April 22, 20262026-04-22
In March 2026, the Canadian Intellectual Property Office published a practice notice titled “March 2026 Practice Notice on Patentable Subject-Matter under the Patent Act” (the Notice), providing updated guidance on the Patent Office’s interpretation of patentable subject matter.
Deeth Williams Wall https://www.dww.com/articles/new-cipo-practice-notice-on-patentable-subjectmatter

Robot Vacuum Trademark Dodges Full Expungement Robot Vacuum Trademark Dodges Full Expungement

Trademark and Copyright Litigation
– April 22, 2026April 22, 20262026-04-22
On March 31, 2026, the Federal Court of Canada (the Court) issued its decision in Ecovacs Robotics Co., LTD. v American Air Filter Company Inc., 2026 FC 329, allowing the appeal in part of a decision of the Registrar of Trademarks to expunge the registration for AIVI Design trademark (the Mark) for failure to file evidence in response to a Section 45 notice.
Deeth Williams Wall https://www.dww.com/articles/robot-vacuum-trademark-dodges-full-expungement

Making A Splash: Federal Court Of Appeal Restores Validity Of Water Slide Patent Making A Splash: Federal Court Of Appeal Restores Validity Of Water Slide Patent

Patent Litigation
– April 22, 2026April 22, 20262026-04-22
On March 20, 2026, the Federal Court of Appeal (the FCA) issued its decision in ProSlide Technology Inc. v WhiteWater West Industries, Ltd., 2026 FCA 59, reversing the invalidation of ProSlide Technology Inc.’s (ProSlide) asserted water slide claims (the Claims) for overbreadth. The FCA also upheld the Federal Court’s (the FC) findings that WhiteWater West Industries Ltd. (WhiteWater) did not infringe the Claims, and the Claims were not invalid for lack of utility.
Deeth Williams Wall https://www.dww.com/articles/making-a-splash-federal-court-of-appeal-restores-validity-of-water-slide-patent

Safe Food For Canadians Licensing Process Updated Safe Food For Canadians Licensing Process Updated

Regulatory Law
– April 8, 2026April 8, 20262026-04-08
The Canadian Food Inspection Agency (CFIA) has updated the Safe Food for Canadians (SFC) licensing process, including the introduction of additional information requirements, more thorough pre-issuance review procedures, and longer processing times.
Deeth Williams Wall https://www.dww.com/articles/safe-food-for-canadians-licensing-process-updated

Whose Line Of Code Is It Anyways? Copyright Ownership In Ontario Employee’s Secretly Developed Competitive Software Whose Line Of Code Is It Anyways? Copyright Ownership In Ontario Employee’s Secretly Developed Competitiv...

Trademark and Copyright Litigation
– April 8, 2026April 8, 20262026-04-08
On March 19, 2026, the Ontario Court of Appeal issued its decision in Nexus Solutions Inc. v. Krougly, 2026 ONCA 199, dismissing Nexus Solutions Inc.’s (Nexus’) appeal from an Ontario Superior Court of Justice decision finding that Nexus’ employee (Krougly) retained copyright in software he secretly developed while employed at Nexus.
Deeth Williams Wall https://www.dww.com/articles/whose-line-of-code-it-anyways-copyright-ownership-ontario-employee%E2%80%99s-secretly-developed
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Events

DWW Lawyers To Attend INTA 2026 Annual Meeting

May 2, 2026

Between May 2 and May 6, 2026, DWW delegates will be attending the International Trademark Association (INTA) 2026 Annual Meeting in London, England.

The INTA Annual Meetings bring together thousands of practitioners, in‑house counsel, policymakers, and service providers to discuss pressing global topics in IP Law, exchange industry insights, and connect for focused learning.

DWW Associate M. Imtiaz Karamat To Co-Chair OBA “Privacy Law Basics” Program

March 31, 2026

On March 31, 2026, M. Imtiaz Karamat will co-chair the “Privacy Law Basics” program hosted by the OBA Privacy & Access to Information Law Section and Young Lawyers Division.

DWW Partner Jennifer R. Davidson and DWW Associate Victoria Di Felice To Speak On “Women in IP Panel” at Osgoode Hall Law School

March 18, 2026

On March 18, 2026, Jennifer R. Davidson and Victoria Di Felice will speak at the “Women in IP Panel” event co-hosted by the Intellectual Property Society of Osgoode and the Osgoode Women’s Network.

Jennifer and Victoria will be joined by colleagues in the intellectual property bar to discuss their respective professional journeys, perspectives on career paths, and the challenges and opportunities for women pursuing IP law.

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