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Matthew L. Seror

Matthew L. Seror



  • Intellectual Property Law
  • Litigation
  • Cybersecurity Law
  • Privacy & Data Security Law

WSG Practice Industries


California, U.S.A.

WSG Leadership

WSG Coronavirus Task Force Group

Matthew L. Seror’s practice includes all aspects of litigation, with particular emphasis on intellectual property matters, complex commercial matters, and real estate litigation.

Mr. Seror has represented clients in matters involving copyrights, trademarks, trade secrets, trade dress, and unfair competition. Mr. Seror also regularly counsels clients on effective means of protecting intellectual property assets and frequently represents clients in the apparel industry with regard to licensing and infringement claims.

In addition to his work in the intellectual property arena, Mr. Seror also represents a number of companies, start-ups, financial institutions, receivers and other court appointed fiduciaries in complex commercial and real estate matters. His extensive experience includes matters involving contractual disputes, secured transactions, fraud, securities violations, mechanic lien litigation, partnership disputes, real estate disputes, and securities violations.

Mr. Seror is currently a member of the Leadship Council for SecureTheVillage. He has been recognized by Super Lawyer Magazine as a Southern California Super Lawyer Rising Star from 2009-2019 and a Southern California Super Lawyer in 2020 and 2021, a distinction recognizing the top two and one-half percent of California attorneys under the age of 40 for excellence in the practice of law. In addition to this distinction, in 2015, 2016 and 2017 Super Lawyer Magazine also recognized Mr. Seror as an Up-and-Coming 100, an honor reserved for the attorneys who ranked among the top 100 during the Rising Star selection process.

Bar Admissions

  • California


  • USC Gould School of Law
  • University of Southern California
Areas of Practice

Cybersecurity Law | Intellectual Property Law | Litigation | Privacy & Data Security Law

Professional Career

Significant Accomplishments

  • Defended toy designer and manufacturer in trademark infringement action.
  • Defended premium denim manufacturer in copyright infringement action.
  • Representation of an internet start-up company in connection with protecting intellectual property assets.
  • Defended apparel manufacturer in connection with copyright and trademark infringement matter.
  • Defense of national retailer in copyright infringement action.
  • Representation of Court appointed receiver charged with the completion, marketing and sale of over twenty-eight residential communities located across the western United States.
  • Representation of entrepreneur following his wrongful dissociation from partnership he helped form.
  • Representation of lenders and special servicers in connection with foreclosure actions and related real estate litigation matters.


Social Media Influencers Could Become the Targets of Trademark Infringement Lawsuits
Buchalter, August 2021

Petunia Products, Inc. owns the BROW BOOST ® trademark, under which it sells a “Billion Dollar Brows” eyebrow primer and conditioner. Petunia recently asserted trademark infringement claims against a skin care products company, which Petunia alleges infringed on its BROW BOOST mark in connection with the name of its product that competes with Petunia’s product, and by using the hashtag #BROWBOOST on social media to promote its product...

Additional Articles

  • Caught in the crossfire: Could social media influencers become the target of trademark infringement litigation after the case against influencer Molly Sims was allowed to proceed?
  • Social Media Influencers Could Become the Targets of Trademark Infringement Lawsuits
  • The Supreme Court Agrees to Decide Whether Immaterial Registration Errors Can Serve as the Basis for Invalidating Copyright Registrations
  • Windfalls and Pitfalls of Pivoting Your Business Model in the New Business Environment
  • Ninth Circuit Decision Solidifies the Importance of Adhering to Registration Formalities
  • Buchalter Client Alert COVID-19: Despite the Shut Down and Absence of Final Implementing Regulations, California’s Attorney General Still Intends to Enforce the California Consumer Privacy Act Starting July 1, 2020
  • Buchalter Client Alert Covid-19: Cybercrimes
  • Proposed Regulations and Recent Amendments Clarify Compliance with the California Consumer Privacy Act as Effective Date Looms
  • Federal Privacy Legislation Needed Before a Patchwork of State Privacy Laws Inundate Businesses
  • The California Privacy Act of 2018 Signed Into Law: Five Things You Need To Know
  • The Supreme Court Clarifies Standard For Attorney Fee Awards In Copyright Cases
  • ‘Raging’ Blow for Laches Defense
  • The Innovative Design Protection Act: Bound for Success or Doomed to Fail?

WSG's members are independent firms and are not affiliated in the joint practice of professional services. Each member exercises its own individual judgments on all client matters.

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