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Jeffrey Michael Rosenfeld

Internet Attorney at San Francisco, CA

3.0   2 reviews

also known as Jeff

  • State Years
    Dist. of Columbia - DC 20 years
    California - CA 20 years
  • Licensed for 20 years
    State DC
    Acquired 2003
    Good Standing No misconduct found
  • Licensed for 20 years
    State CA
    Acquired 2002
    Active No misconduct found

We have not found any instances of professional misconduct for this lawyer.

About Jeffrey

Learn Jeffrey’s areas of practice.

With more than a decade of hands-on experience, Jeff devotes his practice to intellectual property and Internet-related litigation. He has litigated numerous matters, including copyright, trademark, trade secret, domain name, CAN-SPAM, data breach, Internet defamation and other Internet-related disputes in federal court, state court and arbitration proceedings. Jeff’s clients are primarily online retailers of everyday products and services, including dietary supplements, office supplies, financial products, home electronics, car rental services, business formation services, religious organizations, and schools and universities. 


A large portion of Jeff’s practice involves intellectual property litigation in the online space, and he regularly represents both defendants and plaintiffs in copyright and trademark infringement lawsuits involving website content.  Jeff also devotes a significant portion of his practice to defending spam litigation and has been involved in several precedent-setting cases. Jeff also regularly litigates matters regarding complex e-commerce systems, including issues relating to merchant processing, online payment systems, affiliate networks and negative options. 


In addition to his litigation practice, Jeff counsels clients on strategic Internet-related issues, including compliance with FTC regulations in online marketplaces, advising on the design and operation of e-commerce websites and the disclosures made on those websites.


Prior to joining Kronenberger Rosenfeld, Jeff was with Howard Rice Nemerovski Canady Falk & Rabkin in San Francisco, and before that, 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.


Jeff was the winner of the First Annual Stanford Technology Law Review paper competition for his paper, “Spiders and Crawlers and Bots”, Oh My, 2002 Stanford Technology Law Rev. 3. He was awarded a speaking position at the Telecommunication Policy Research Conference, and has been recognized as a Northern California Super Lawyers Rising Star for five consecutive years.


Representative Matters


Spam Litigation Defense


  • Represented 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. 


  • Prevailed on motion to dismiss on behalf of multiple defendants named in a $400 million spam lawsuit brought by a major Washington, D.C. law firm.    


  • Represented the owners of a popular online dating website against a professional spam plaintiff in a $19 million California spam lawsuit. Obtained a full dismissal with prejudice for one of the firm’s clients at summary judgment and resolved the remainder of the case shortly thereafter. 


Trademark and Copyright Infringement


  • Represented an online retailer of printer supplies in a trademark infringement lawsuit brought by a billion dollar printer manufacturer. 


  • Successfully defended a web development company in a federal trademark lawsuit.  After a five-day jury trial, the client defeated all of the plaintiff’s claims, with the jury finding that the plaintiff had not established any valid trademark rights. 


  • 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.    


E-Commerce Systems


  • Represented a large online merchant in a lawsuit against a payment processor and payment gateway, which alleged that the defendants had skimmed small amounts from each of the client’s online transactions resulting in a total theft of more than $1.6 million.  After extensive discovery and motion practice, the parties settled in favor of our 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 important law. The firm ultimately reached a settlement with the defendants in favor of the client. 


“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.”

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Kronenberger Rosenfeld, LLP
150 Post St
Suite 520
San Francisco, CA, 94108
Kronenberger Rosenfeld, LLP
150 Post St, Ste 520
San Francisco, CA, 94108
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3.0 / 5.0
  2 customer reviews
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1 Star
Posted by Leo | April 26, 2014
Highly effective, diligent, and formidable advocate
Mr. Rosenfeld is a results-driven, confident attorney who handled my case exceptionally well. In addition, he provided personalized, accessible service and made it a point to keep me informed of how the case was progressing. He did an excellent job bringing my matter to closure.
Posted by anonymous | March 4, 2018
This review is from a person who hired this attorney.
| Hired Attorney
Very Bad Experience
I had pushed the attorney the attorney to deliver work and we ended the work relationship on bad terms and I was thoroughly misrepresented during the entire duration of the case and it was my biggest folly to expect this attorney to respect my time, boundaries, health and circumstances that arose due to the the reason I filed the case. I however did end up standing up for myself, got more results that what I got via hiring him/his law firm by my self-effort and learning the law by reading up. I spent thrice or five times as much until today to make up for the follies caused due to the way the case was handled, my pregnancy got impacted during the course, I got skin infections during the course due to uncalled for stress I had to put up and my health impact which impacted my case was being used as a bait by the attorney group and the defendant to spin around the case as much as they could. I cannot recommend him as I received unbaked guidance and immaturity in the way the case was handled while they were responsible for this and several occasions where the case could complete to the scope of the case, was never even attempted by them. Whenever an anxious moment in the case came he was waiting to drop the ball, I would count that as incompetency. I hired initially them to represent me on the case and they didn't represent me well despite spending $65000 by hiring them which was money down the drain and I spent money on useless customaries and futile discoveries. Contrary to thier contribution I was able to bring the crimes committed by the defedant to light by taking requisite action against the person(s) who is/are supposed to compensate me in Millions to compensate for the damage occurring to my Career, Health and Reputation and Finances. Subsequently I Self-represented and Later found Another Counsel that at least explains to me and gives me options better than these leeches. I subsequently spent nearly additional $200,000 for lawyer/expert/fees at another expensive attorney but I at least see tangible benefits of knowing my options and getting my voice heard to the court. I still battle my health issues which started due to fighting a case that is both personal to me and also means a lot due to the impact caused due to it in every sphere of my life spanning a decade. I will rate my Subsequent Counsel full on full when compared to these attorneys and I was misguided by thier avvo rating and hence find it important to report this experience so fellow clients needing internet attorneys can decide for themselves.
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Contact for Details


AVVO RATING 10.0 (Superb)

Work Experience

  • Partner
  • Kronenberger Rosenfeld, LLP
  • 2011 - 2014
  • Associate
  • Kronenberger Rosenfeld, LLP
  • 2007 - 2011
  • Associate
  • Howard Rice Nemerovski Canady Falk & Rabkin
  • 2004 - 2007
  • Associate
  • Covington & Burling
  • 2002 - 2004
View all work experience


  • Georgetown University Law Center
  • JD - Juris Doctor
  • 2002
  • Stanford University
  • AB - Applied Baccalaureate
  • 1998

Languages Spoken

  • English

Honors and Awards

  • Rising Star
  • Super Lawyers
  • 2014
  • Rising Star
  • Super Lawyers
  • 2013
  • Rising Star
  • Super Lawyers
  • 2012
  • Rising Star
  • Super Lawyers
  • 2011
  • Rising Star
  • Super Lawyers
  • 2010
  • Third Place Paper
  • Telecommunications Policy Research Conference
  • 2002
  • First Place Paper
  • Stanford Technology Law Journal
  • 2002
View all awards

Speaking Engagements

  • Internet Law Leadership Summit
  • Clickwrap and Browserwrap Agreements: Drafting and Litigation Considerations
  • 2012
  • Telecommunications Policy Research Conference
  • Online Contracts that Restrict Data Collection
  • 2002

Attorney endorsements

Received (5)
Given (4)
Endorse Jeffrey
Business Attorney | Nov 28
Relationship: Worked together on matter
"I've worked with Jeff Rosenfeld on a number of matters, and do not hesitate to endorse him. Jeff is a consummate professional, and experienced litigator. I have learned much from him, and am proud to know him."
Internet Attorney | Jul 03
Relationship: Worked together on matter
"Jeff and I worked together as co-counsel representing consumers in a complex class action matter involving claims of Internet fraud. I was consistently impressed by Jeff's wealth of knowledge in the developing field of Internet law as well as his practical understanding of how unscrupulous on-line businesses defraud consumers. I would strongly that anyone who believes they have been the victim of an Internet scam contact Jeff for a consultation."
Internet Attorney | Apr 30
Relationship: Other
"I worked with Jeff for over 5 years. Also, after I left the firm, as General Counsel to an online advertising company, I retained Jeff to represent the company in connection with several matters. Jeff is an accomplished and thoughtful attorney with a keen understanding of the business and legal issues facing Internet-related companies."
Internet Attorney | Apr 24
Relationship: Worked for lawyer
"Jeff is both a highly talented and experienced attorney--with strong legal writing and oral advocacy skills--and an engaging and friendly person."
Internet Attorney | Apr 22
Relationship: Co-worker
"Jeff is a knowledgeable and experienced attorney whose work has helped define the law as it relates to Internet-based claims."

Avvo Contributions

This attorney hasn't created any legal answers in Q&A or legal guides recently on Avvo.

San Francisco Internet Lawyer Jeffrey Michael Rosenfeld
Jeffrey Michael Rosenfeld
Internet Attorney
San Francisco, CA
Licensed for 20 years