Diana represents private equity sponsors, founders and managers in connection with acquisitions and disposals. She also represents German corporate groups in their investments in French companies and other cross-border transactions. In addition, Diana advises venture capital funds, corporate clients and entrepreneurs on venture capital and growth transactions of various types in sectors such as e-commerce and technology.

Prior to joining the Firm, Diana worked at other leading international law firms.

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In addition to her practice, Mandy is a leader in her community as a member of the board of directors for Public Law Center and executive board for Orange County Korean American Bar Association. She is actively advancing the Firm’s commitment to diversity and inclusion and pro bono, serving on the Firm’s Racial and Ethnic Diversity Committee and as the head of pro bono and hiring partner for the Orange County office.

Prior to practicing law, Mandy was a research associate in molecular, cell and developmental biology and microbiology, immunology and molecular genetics laboratories. She has authored a number of publications in connection with her research, and also worked as a technology transfer specialist in the Office of Intellectual Property at UCLA.

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• Successfully obtained a favorable jury verdict in favor of Amgen in a patent infringement case involving novel antibody therapeutics for the treatment of high cholesterol. (Amgen Inc. v. Sanofi et al.)
• Obtained favorable settlement on behalf of Ambry Genetics in a patent infringement case involving patents claiming human DNA sequences following a favorable Federal Circuit decision that disposed of a number of claims at issue, (In Re BRCA1- and BRCA2-Based Hereditary Cancer Test Patent Litigation)
• Secured an initial determination of no infringement, invalidity and no domestic industry in favor of Panasonic before the International Trade Commission. (In the Matter of Certain Digital Media Devices, Including Televisions, Blu-Ray Disc Players, Home Theater Systems, Tablets and Mobile Phones, Components Thereof and Associated Software)
• Obtained global settlement on behalf of HTC in a patent infringement action before the International Trade Commission. (In re Certain Electronic Devices, Including Mobile Phones and Tablet Computers and Components Thereof)
• Secured a favorable settlement after a bench trial on behalf of Tolmar in a patent infringement action involving patents relating to treatment of psoriasis.  (LEO Pharma, A/S v. Tolmar, Inc.)
• Obtained favorable settlement on the eve of trial on behalf of Sandoz in several patent litigations brought under the Hatch-Waxman Act. (Cephalon, Inc. and Cima Labs, Inc. v. Sandoz, Inc.; Warner Chilcott Company, LLC, et al. v. Sandoz, Inc.)

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• American Jurisprudence Award for Intellectual Property Survey, and for Selected Issues in Dispute Resolution—Intellectual Property
• Witkin Award for Selected Issues in Dispute Resolution—Intellectual Property

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Sarah assists clients across an array of industries with all stages of domestic and international trademark prosecution, and provides consultation and strategy with respect to the selection, clearance, enforcement, and licensing of trademarks. Sarah’s clients include domestic and international companies in industries such as healthcare, blockchain and financial technologies, software/mobile applications, agriculture, fashion and apparel, consumer goods, beauty, wellness and lifestyle (including CBD products), arts and entertainment, food and beverage, hospitality, mining, and pharmaceuticals. Sarah has extensive experience in the research, drafting, and filing of documents with the US Patent and Trademark Office, the Trademark Trial and Appeal Board, and the US Copyright Office. Sarah has a proven track record in recovering domain names through the Uniform Dispute Resolution Policy (UDRP) and Uniform Rapid Suspension (URS) policies. Sarah is also well versed in the submission of “takedown” and infringement notices across third-party websites, social media platforms, app stores, and online marketplaces. She has experience in swiftly addressing instances of fraud, phishing, or other online abuse by leveraging intellectual property claims through a multi-pronged enforcement approach. Sarah also regularly provides intellectual property (IP) support and guidance in due diligence matters in connection with corporate transactions such as mergers, acquisitions and corporate reorganizations. Sarah’s experience includes a three-month secondment in Germany in the in-house legal department of a leading generic pharmaceuticals company, where she handled a full array of trademark prosecution matters, global brand portfolio management, and strategic clearance for a key worldwide product launch.

Sarah is a member of McDermott’s Pro Bono Committee, the Gender Diversity Committee, and the Orange County Recruiting Committee. Sarah is a regular contributor to McDermott’s IP Update blog.

She is also a member of our legal cannabis industry group. Our Cannabis Industry group is a multidisciplinary team of lawyers providing clients with regulatory, litigation, intellectual property, trade, and tax services with respect to their investments and participation in the cannabis industry, all subject to the firm’s obligations under federal and state laws and bar licensure rules.

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• Recovered or obtained suspension of domain names in more than 60 UDRP proceedings and URS proceedings
• Experience with the new gTLD system, including recordation of trademarks with the Trademark Clearinghouse
• Management of significant post-closing trademark assignment projects
• Completed the 2014 Fashion Law Summer Intensive Program at Loyola Law School

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• Euromoney’s Women in Business Law Expert Guide 2020-2021
• Expert Guides, Women in Business Law, 2020

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• INTA Unreal Campaign Student Outreach Program, volunteer instructor
• California Lawyers for the Arts, Human Options, the Public Law Center and others, pro bono volunteer
• LA Works, volunteer

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