Jeffrey M. Rosenfeld

Partner

Jeff is an experienced litigator who focuses on speech, advertising, and intellectual property disputes, particularly in connection with online content and new media.

Phone Number

949-374-5036 Ext. 112

415-955-1155 Ext. 112

Email Address

[email protected]

Jeffrey M. Rosenfeld profile page

Jeffrey M. Rosenfeld

Partner

Jeff is an experienced litigator who focuses on speech, advertising, and intellectual property disputes, particularly in connection with online content and new media.

Phone Number

949-374-5036 Ext. 112

Email Address

[email protected]

Jeff represents clients in disputes involving intellectual property, speech, and advertising.

Jeff also regularly defends consumer class actions alleging unfair competition and false advertising regarding websites, emails, and e-commerce platforms. In particular, Jeff’s practice focuses on the following types of cases:

  • Copyright and Trademark Infringement: Jeff regularly represents both defendants and plaintiffs in copyright and trademark infringement lawsuits involving website content, digital products, and online advertisements.
  • Online Defamation: Jeff has extensive experience representing both plaintiffs and defendants in defamation cases involving online content, including anonymously-published content. Jeff has litigated all aspects of online defamation matters from anti-SLAPP through trial, and he has worked with clients and experts to quantify both economic and non-economic damages in such cases.
  • False Advertising on the Internet: Jeff’s clients are primarily online retailers of everyday products and services, such as dietary supplements, office supplies, recreational products, home electronics, and car rental services. Jeff represents these clients when their competitors make false statements in advertisements, or when Jeff’s clients are accused of making false statements about their own products and services.
  • Spam, TCPA, and Telemarketing Defense: Jeff devotes a significant portion of his practice to defending spam, TCPA, and telemarketing litigation, and he has been involved in several precedent-setting cases. Jeff is well-versed in all aspects of the relevant spam and TCPA authority as well as the practical trial and settlement dynamics of spam and TCPA litigation.
We use a practical approach to all of our litigation. We take into consideration our client’s goals, all of the possible outcomes, and the realistic cost of the litigation in order to develop a vigorous strategy to achieve our client’s goals.

Prior to joining Kronenberger Rosenfeld, Jeff was a litigation associate with Howard Rice Nemerovski Canady Falk & Rabkin in San Francisco, and before that, a litigation and data privacy associate with Covington & Burling in Washington, D.C. Jeff received his J.D., magna cum laude, from Georgetown University Law Center in 2002, where he was elected to the Order of the Coif and was an editor on the Georgetown Law Journal. He received his A.B. from Stanford University.

EDUCATION
  • Stanford University, A.B.
  • Georgetown University Law Center, J.D., magna cum laude
BAR ADMISSIONS

State Bar of California

District of Columbia Bar (inactive)

U.S. District Court for the Northern District of California, Central District of California, Southern District of California, Eastern District of California

The United States Court of Appeals for the Ninth Circuit & Tenth Circuit

MEMBERSHIPS

American Bar Association

Additional Attributes for Jeffrey M. Rosenfeld

  • Obtained $1.9 million judgment for manufacturer of cosmetics products in copyright infringement action against competitor who had infringed manufacturer’s marketing materials.
  • Defended a major internet advertising network in an $11 million federal spam lawsuit by a professional spam plaintiff. Prevailed on behalf of client at summary judgment on all claims in the lawsuit; obtained order awarding over $806,000 in fees and sanctions against the professional spam plaintiff.
  • Defended major electronics manufacturer in putative nationwide class action alleging false advertising in online marketplaces.
  • Successfully defended a web development company in a federal trademark lawsuit. After a five-day jury trial, the client prevailed on all of the plaintiff’s claims, with the jury finding that the plaintiff had not established any valid trademark rights.
  • Represented numerous clients in anonymous defamation cases, successfully petitioning courts to authorize early discovery to social media companies and ISPs to obtain identifying information about anonymous authors; Jeff’s clients in such cases have included individuals, businesses, non-profit organizations, and religious organizations.
  • Represented an online retailer of printer supplies in a trademark infringement lawsuit brought by a major printer manufacturer.
  • Represented an online merchant in numerous copyright infringement cases where competitors had copied and displayed the client’s product images on the infringers’ own websites. In each case, the firm reached a favorable settlement on behalf of the client.
  • Represented the plaintiff in a federal lawsuit against a large online merchant based on the merchant’s creation and settling of financial instruments without proper authorization. The suit was one of the first to address the federal Restore Online Shoppers’ Confidence Act (ROSCA), and helped define the contours of this law. The firm ultimately reached a settlement with the defendants in favor of the client.
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  • Obtained $1.9 million judgment for manufacturer of cosmetics products in copyright infringement action against competitor who had infringed manufacturer’s marketing materials.
  • Defended a major internet advertising network in an $11 million federal spam lawsuit by a professional spam plaintiff. Prevailed on behalf of client at summary judgment on all claims in the lawsuit; obtained order awarding over $806,000 in fees and sanctions against the professional spam plaintiff.
  • Defended major electronics manufacturer in putative nationwide class action alleging false advertising in online marketplaces.
  • Successfully defended a web development company in a federal trademark lawsuit. After a five-day jury trial, the client prevailed on all of the plaintiff’s claims, with the jury finding that the plaintiff had not established any valid trademark rights.
  • Represented numerous clients in anonymous defamation cases, successfully petitioning courts to authorize early discovery to social media companies and ISPs to obtain identifying information about anonymous authors; Jeff’s clients in such cases have included individuals, businesses, non-profit organizations, and religious organizations.
  • Represented an online retailer of printer supplies in a trademark infringement lawsuit brought by a major printer manufacturer.
  • Represented an online merchant in numerous copyright infringement cases where competitors had copied and displayed the client’s product images on the infringers’ own websites. In each case, the firm reached a favorable settlement on behalf of the client.
  • Represented the plaintiff in a federal lawsuit against a large online merchant based on the merchant’s creation and settling of financial instruments without proper authorization. The suit was one of the first to address the federal Restore Online Shoppers’ Confidence Act (ROSCA), and helped define the contours of this law. The firm ultimately reached a settlement with the defendants in favor of the client.
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