Dental Monitoring Sas v. Align Technology, Inc.

The U.S. Court of Appeals for the Federal Circuit, in a nonprecedential disposition, affirmed a district court's ruling that several patent claims held by Dental Monitoring SAS were invalid under 35 U.S.C. § 101 for being directed to ineligible subject matter. The dispute involved Dental Monitoring's patents related to deep learning-based dental image analysis and Align Technology, Inc.'s Virtual Care AI solution. The Federal Circuit applied the two-step framework established in *Alice Corp. v. CLS Bank International*, concluding that the claims, while pertaining to the dental field, merely covered abstract ideas without an inventive concept. This decision underscores the ongoing challenges in patenting software and artificial intelligence innovations, particularly in highly competitive and technologically advanced sectors like orthodontics, and highlights the Federal Circuit's consistent application of Section 101 eligibility standards.

The United States Court of Appeals for the Federal Circuit recently issued a nonprecedential decision in *Dental Monitoring SAS v. Align Technology, Inc.*, affirming a district court's finding that certain patent claims held by Dental Monitoring were invalid under 35 U.S.C. § 101. This case, docketed as 24-2270, involves two prominent players in the dental technology space: Dental Monitoring SAS, known for its AI-driven remote monitoring solutions, and Align Technology, Inc., the manufacturer of the Invisalign® system and its Virtual Care AI platform. The Federal Circuit's ruling, handed down on July 7, 2026, reinforces the stringent requirements for patent eligibility, particularly concerning software-implemented inventions and artificial intelligence, following the framework established by the Supreme Court.

The dispute originated in the U.S. District Court for the Northern District of California, where Dental Monitoring accused Align Technology of infringing U.S. Patent Nos. 10,755,409 and 11,049,248. These patents broadly cover methods for assessing orthodontic aligners and analyzing dental arch images using deep learning devices. The district court ultimately granted summary judgment to Align, determining that the asserted claims were directed to abstract ideas without an inventive concept, thus rendering them ineligible for patent protection. The Federal Circuit's affirmation, though nonprecedential, offers valuable insights into the application of patent eligibility standards in the rapidly evolving field of AI-powered healthcare technologies and serves as a reminder to practitioners navigating this complex legal landscape.

Patent eligibility in the United States is governed by 35 U.S.C. § 101, which defines the categories of inventions that may be patented: any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof. However, judicial exceptions to this broad statutory language have evolved, excluding abstract ideas, laws of nature, and natural phenomena from patent protection. The Supreme Court's decisions in *Alice Corp. v. CLS Bank International* and *Mayo Collaborative Services v. Prometheus Laboratories, Inc.* established a two-step framework for analyzing patent eligibility. Step one asks whether the claims are directed to a patent-ineligible concept. If so, step two requires determining whether the claims recite an inventive concept sufficient to transform the abstract idea into a patent-eligible application.

Dental Monitoring SAS and Align Technology, Inc. are key innovators in the orthodontic industry. Dental Monitoring specializes in AI-driven remote monitoring and analysis solutions for orthodontics, holding over 200 patents and pending applications in this domain. Align Technology is widely recognized for its clear aligner technology, Invisalign®, and has also developed its own AI-powered solutions, such as Virtual Care AI. The competitive nature of this market, driven by technological advancements in digital dentistry and artificial intelligence, frequently leads to intellectual property disputes. Dental Monitoring initiated the lawsuit in November 2022, alleging that Align's Virtual Care AI infringed its patents related to deep learning-based dental image analysis. The district court structured the case as a "patent showdown," leading to cross-motions for summary judgment on patent eligibility.

The Federal Circuit's decision in *Dental Monitoring SAS v. Align Technology, Inc.* centered on the application of the *Alice/Mayo* two-step framework to U.S. Patent Nos. 10,755,409 and 11,049,248. These patents describe methods for assessing orthodontic aligners and analyzing dental arch images using deep learning devices. At step one of the *Alice* test, the district court found, and the Federal Circuit affirmed, that the claims were directed to abstract ideas. Specifically, the district court characterized claim 14 of the '248 patent as directed to "collecting information, analyzing it, and displaying certain results of the collection and analysis," a characterization consistent with prior Federal Circuit precedent on abstract ideas.

Moving to step two, the Federal Circuit considered whether the claims contained an inventive concept that would transform the abstract idea into a patent-eligible application. The district court had concluded that no inventive concept was present, noting that the claims merely used generic hardware to implement the abstract idea within the specific field of dental aligner assessment. The Federal Circuit agreed, emphasizing that the use of a "deep learning device" trained on a specific subset of data is inherent to machine learning itself and does not, by itself, provide the necessary inventive concept to render an abstract idea patent-eligible. This reasoning aligns with the Federal Circuit's consistent stance that merely automating a human activity or applying an abstract algorithm on a generic computer does not satisfy Section 101.

While Align Technology had also raised invalidity arguments under 35 U.S.C. § 112 (which addresses written description, enablement, and definiteness requirements), the district court's decision, affirmed by the Federal Circuit, rested solely on Section 101 eligibility. The nonprecedential nature of this disposition means that it does not serve as binding precedent for future cases. However, Federal Circuit Rule 32.1 permits parties to cite nonprecedential dispositions issued after January 1, 2007, for their persuasive value. This allows practitioners to consider the court's reasoning as guidance, particularly in cases involving similar AI-driven diagnostic or monitoring technologies in the medical or dental fields. The outcome underscores the ongoing difficulty in securing and enforcing patents for software and AI inventions that may be perceived as merely implementing abstract concepts on conventional computing platforms, rather than providing a concrete, technological improvement.

The decision also highlights the importance of careful claim drafting to ensure that inventions involving AI and software are not merely directed to abstract ideas. Patent claims must demonstrate a specific, concrete application that integrates the abstract idea into a practical technological solution, rather than simply stating the abstract idea itself or its implementation on generic computer components. The Federal Circuit's continued scrutiny of such claims under Section 101 suggests that patent applicants in the AI space must articulate how their inventions offer a technical solution to a technical problem, going beyond the mere automation of mental steps or data processing.

The Federal Circuit's nonprecedential affirmance in *Dental Monitoring SAS v. Align Technology, Inc.* serves as a critical reminder for legal professionals in the intellectual property and technology sectors regarding the enduring challenges of patenting software and artificial intelligence innovations under 35 U.S.C. § 101. For Dental Monitoring, the decision means the invalidation of key patent claims related to its deep learning-based dental image analysis, potentially impacting its competitive position against Align Technology's Virtual Care AI platform. For Align, it represents a successful defense against infringement allegations, reinforcing its ability to operate in the remote dental monitoring space.

Practitioners should take note that while nonprecedential, this ruling reflects the Federal Circuit's consistent application of the *Alice/Mayo* framework, particularly in scrutinizing claims that involve abstract ideas implemented using generic computing components. Companies developing AI-driven solutions, especially in healthcare, must ensure their patent applications clearly articulate an inventive concept that transforms any abstract idea into a concrete, technological improvement. Future patent applications in this domain should focus on demonstrating how the AI specifically improves the functioning of the computer itself or effects a transformation of a particular article into a different state or thing, rather than merely performing a known process faster or more efficiently. The ongoing evolution of AI technology will undoubtedly continue to test the boundaries of patent eligibility, making careful strategic planning and robust claim drafting paramount.