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 Associate M. Imtiaz Karamat To Speak At IAPP Agentic AI Workshop

May 6, 2026

On May 6, 2026, M. Imtiaz Karamat will speak at a workshop titled “Navigating Consent and Ownership Rights in the Agentic AI Era” at the IAPP Canada Symposium 2026.

DWW To Attend 2026 Food and Drug Law Institute Annual Conference

May 6, 2026

Between May 6 and May 7, 2026, DWW will attend the 2026 Food and Drug Law Institute (FDLI) Annual Conference in Washington, DC.

The FDLI Annual Conference features experts from federal government, industry, private practice, and consumer advocacy groups to discuss the pressing legal, regulatory, and policy issues impacting FDA-regulated industries.

We invite you to connect with Gordon Jepson at the 2026 FDLI Annual Conference in Washington.

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.

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