September 2025 • Vol. 31 • Issue 7
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Patently Cosmetic: Protecting Innovations in a Crowded Ingredient Space …Lucas Koziol
rom moisturizers and lotions to fragrances, makeup, and hair products, new cosmetics are constantly being innovated. For business owners, obtaining patent protection for an innovation can be almost as important for safeguarding market share and attracting investment as the innovation itself. One challenge is that the industry already has thousands of safe, effective ingredients in use. Most innovations come not from brand-new chemicals, but from creative and unique combinations of known building blocks. In this article, we discuss the patentability of new products that contain combinations of known ingredients. As an example, let’s consider a hypothetical new product: A + B Lotion. Lotion has two active ingredients, A (a known emollient) and B (a known preservative).
Content and Function: Two Paths to Patentability
The U.S. Patent and Trademark Office (USPTO) is the federal agency that administers the national patent system. The USPTO rigorously reviews every patent application, ensuring it satisfies the legal requirements to be entitled to government patent protection. This review process is typically a back-and-forth negotiation between the patent applicant and a USPTO employee known as an Examiner. In many technology fields, the most challenging legal requirement is often nonobviousness. The USPTO will compare Lotion to specific documents known as “prior art” including other patents and applications, scientific papers, and any other documents publicly available before the filing date describing similar products or compositions. In a typical scenario, the USPTO finds one existing product using ingredient A, and a second product using B, and asserts Lotion is merely an obvious combination of the two. When faced with this kind of rejection from the USPTO, the patentability of Lotion can be conceptualized as a spectrum along multiple axes, such as those shown in Figure 1. The horizontal axis shows the concentrations of A and B in Lotion compared to the prior art. Generally, the bigger the difference, the less “obvious” Lotion is likely to be, and thus the stronger its case for patentability. The vertical axis shows the functions, or effects, of A and B in Lotion. The bigger the difference in function A and B cause in Lotion, the more likely their combination will be non-obvious. For example, does Lotion merely provide the same known emollient function of A and the same known preservative function of B? If yes, the USPTO is more likely to reject Lotion as a merely obvious combination of already-known products. Figure 1: Conceptual “axes of patentability” for A+B Lotion (Horizontal axis: ingredient content; Vertical axis: function/effect). The farther a new product moves from prior art on either axis—or both—the stronger its case for patentability.
On the other hand, if A and B have some sort of synergistic effect which (continued on Page 7) could not have been previously expected, this could
THE SCIENCE OF SENSORY EXPERIENCES • SEPTEMBER 10th ...see pages 4-5 for more information.