Jeanne C. Fromer

The Audience in Intellectual Property Infringement

Every IP right has its own definition of infringement. In this paper, we suggest that this diversity of legal rules is largely traceable to differences in the audience in IP cases. Patent, trademark, copyright, and design patent each focus on a different person as the fulcrum for evaluating IP infringement. The fact that patent law focuses on an expert audience while trademark looks to a consumer audience explains many of the differences in how patent and trademark cases are decided. Expert audiences are likely to evaluate infringement based on the technical similarity between the plaintiff’s and defendant’s works. Consumers, by contrast, are likely to pay more attention to market substitution and less attention to how things work under the hood. Understanding the different audiences in IP infringement is critical to understanding how the IP regimes define infringement.The focus on audience has normative as well as descriptive implications. Neither patent law, with its focus on experts and technical similarity, nor trademark law, with its market-based consumer focus, has it entirely correct. Rather, we suggest that as a general matter infringement of an IP right should require both technical similarity and market substitution. Assessing infringement through the expert’s eyes ensures that the law prevents closely related works in the field while allowing later contributions to the field that are sufficiently different. The consumer vantage point ensures that we protect IP owners only when they have been harmed in the marketplace. IP owners who want to show infringement should have to show both that the defendant’s work is technically similar to their own from the expert’s vantage point and that the defendant’s use causes the plaintiff market harm. Copyright law, which does look both to experts and to consumers at various points in infringement analysis, is on the right track.

A Legal Tangle of Secrets and Disclosures in Trade: Tabor v. Hoffman and Beyond

In this book chapter, I explore an early trade secrecy case from New York, Tabor v. Hoffman, decided in 1889. A study of this case indicates that many present-day concerns about overlapping edges between trade secrecy and patent laws — and their interaction and interference with one anothers aims — were latent, if not overtly raised, when American courts were just beginning to articulate the common law right of trade secrecy. After telling Tabor’s tale, I investigate some of the longstanding interactions and tensions between trade secrecy and patent laws, through the lens of the regimes’ encouragements of disclosure in some ways and secrecy in others. Moreover, even though trade secrecy law is predominantly focused on secrecy, in some ways it enables disclosure. By contrast, although patent law is preoccupied with disclosure, in some ways, it permits and encourages secrecy. In all, patent law and trade secrecy together create a legal tangle of secrets and disclosures in trade. A full review of the Tabor case suggests that the innovator there was able to take advantage both of trade secrecy’s disclosures and patent law’s secrets. The court did not appreciate this possibility, instead focusing on the unfairness to the plaintiff of the defendant’s appropriation.