Amgen v. Sanofi;

In the landmark Supreme Court case Amgen Inc. v. Sanofi, the legal landscape for pharmaceutical patents, particularly those related to biotechnology, underwent a significant shift. The case centered on the enablement requirement. Enablement in the context of patent law refers to the requirement that a patent application must provide enough detailed information for someone skilled in the relevant field (an “expert”) to understand and replicate the invention without needing excessive experimentation. Essentially, the patent’s description should be clear and complete enough to allow these experts to make and use the invention as claimed in the patent, based on the description provided, without having to invent or discover additional aspects themselves. From a policy perspective, enablement is crucial for the balance between encouraging innovation and ensuring public access to new inventions. The unanimous decision against Amgen for its broad patent claims on PCSK9-inhibiting drugs underscores the high standards required for patent enablement, particularly in fields where the technology is complex and rapidly evolving.


The ruling clarified the enablement requirement, particularly the necessity for patent applications to provide detailed descriptions that enable experts in the field to replicate the invention without undue experimentation. For a pharmaceutical patent to meet the enablement requirement, typically, it must provide specific, comprehensive information and methodologies enabling skilled individuals to reproduce the invention’s full scope. In the case of Amgen, this meant delineating the precise characteristics of PCSK9-inhibiting antibodies alongside methods for their identification, creation, and the conditions necessary for their production. The court determined that Amgen’s documentation failed to furnish such detailed instructions, leaving the scientific and medical communities without the means to produce the entire genus of claimed antibodies without resorting to excessive experimentation. This gap underscored the patents’ failure to meet the stringent criteria for enablement, emphasizing the essential role of thorough, accessible guidance in patent filings to foster innovation and application within the field.

This decision has implications for how future patents are drafted, especially in the biotechnology and pharmaceutical sectors. It sends a clear message that while innovation is to be rewarded, patents must not overreach to the extent that they stifle further research and development.
Michael Jones Michael Jones is the founder and managing member of Jones Intellectual Property, whose mission is to provide his clients with personalized, effective legal solutions. Michael has focused on creating, protecting, and advocating for his clients’ intellectual property rights throughout his career. View Bio