Background
Brian Killian applied for a patent covering a computer-implemented system designed to help identify whether a person might be eligible to receive Social Security Disability Insurance (SSDI) benefits. The system was intended to analyze a person’s work history, medical condition records, and other relevant factors according to the rules used by the Social Security Administration (SSA) to determine SSDI eligibility — and to flag potential eligibility that the person might not know about.
The USPTO rejected the claims as patent ineligible under 35 U.S.C. § 101. The Patent Trial and Appeal Board affirmed the rejection, and Killian appealed to the Federal Circuit, arguing that the computer implementation of the eligibility determination gave the claims patentable weight beyond the abstract idea of evaluating eligibility criteria.
The Court’s Holding
The Federal Circuit affirmed, holding that the claims were directed to an abstract mental process — one that humans can and do perform by observation, analysis, and evaluation — and that implementing those steps on a generic computer did not supply an inventive concept sufficient to confer eligibility under Alice step two.
Under Alice step one, the court found the claims were directed to the abstract idea of determining SSDI eligibility based on known eligibility rules and the claimant’s information. This is precisely the kind of judgment-based, rule-applying analytical process that a trained human analyst — or even an informed lay person — could perform in their mind. The claims simply described gathering information about a person, applying the SSA’s existing eligibility criteria, and identifying whether the criteria were satisfied. None of that required the computer; the computer was merely the medium for performing steps that were conceptually identical to mental steps.
Under Alice step two, the court found no inventive concept. Implementing a mental process on a generic computer — without any improvement to the computer itself or to the way the analysis is performed computationally — is the paradigmatic case that the Supreme Court in Alice held does not transform an abstract idea into patentable subject matter.
Key Takeaways
- Claims directed to evaluating eligibility criteria and identifying qualifying individuals according to known rules remain patent ineligible under § 101 even when implemented on a computer, because the mental steps underlying the analysis are the actual invention.
- The abstract-mental-process category of abstract ideas is broad: if trained humans can perform the claimed analysis through observation, judgment, and rule application, the claims are likely directed to a mental process regardless of how the steps are described in computer-implementation terms.
- Applicants seeking to patent computer-implemented eligibility or decision-support systems should focus on specific, concrete improvements to how the computer performs the analysis — not just on automating a human judgment process that already exists.
- The decision reinforces that government benefit eligibility determinations, tax calculations, financial risk assessments, and similar rule-based analytical processes are strongly presumed to be abstract ideas under Alice step one.
Why It Matters
The Killian decision is a useful data point for understanding the scope of the “mental process” category of abstract ideas under Alice. The Federal Circuit has consistently held that claims directed to steps humans can perform in their minds — even complex analytical steps — fall within the abstract idea exception when implemented on generic computer hardware without any technical improvement.
For software developers and technology companies building compliance, eligibility assessment, or decision-support tools, the ruling is a reminder that the key to patent eligibility is not complexity or social utility — it is whether the claims recite something that goes beyond the abstract idea and provides a specific, concrete improvement to computer functionality or to the method of performing the analytical task. Applications that simply map an existing human judgment process onto a computer system, without changing how that process is executed in a technically meaningful way, face a difficult path to patent eligibility.