Client Alert: USPTO Issues Clarifying Guidance on Patent Eligibility For AI and Software-Related Inventions

DEREK FAHEY, ESQ.

The United States Patent and Trademark Office issued a memorandum reinforcing its framework for assessing subject matter eligibility under 35 U.S.C. § 101, with specific attention to software technologies, artificial intelligence, and machine learning.

The memorandum does not create new law, but it clarifies how examiners should apply existing guidance when evaluating claims that may involve abstract ideas or other judicial exceptions.

Key Reminders For Software and AI Applicants

1. Mental Processes Must Be Limited to What The Human Mind Can Perform

Examiners are instructed not to overextend the mental-process category. Claims involving functions that cannot practically be performed in the human mind—such as complex AI computations or hardware-based processing—should not automatically be characterized as mental processes.

2. A Claim May Involve an Exception Without Reciting One

Not every reference to a mathematical concept, neural network, or AI model amounts to a recitation of an abstract idea. The distinction between merely involving an exception and expressly reciting one can determine whether additional eligibility analysis is required.

3. Claims Must Be Evaluated as a Whole

When determining whether a judicial exception is integrated into a practical application, examiners must evaluate the interaction of all claim limitations rather than assessing each additional element in isolation.

4. Technological Improvements Remain a Central Path to Eligibility

Claims directed to a particular technological solution to a specific problem—such as improved computer functionality or enhanced network security—are more likely to qualify. The claim should explain how the improvement is achieved rather than merely stating a desired result.

5. Generic Automation Is Not Enough

Merely implementing an idea on a general-purpose computer or automating a business process may be insufficient. Applicants should connect the claimed computer implementation to a concrete technical effect or improvement.

Close Calls Must Be Justified

The memorandum reiterates that a § 101 rejection should be issued only when it is more likely than not that the claim is ineligible. When eligibility is a close call, the examiner should not reject on that basis. Claims must still be fully evaluated under §§ 102, 103, and 112.

What This Means For Patent Applicants

Software and AI applicants should draft claims around concrete technical solutions, describe the technical problem and improvement in detail, avoid generic automation language, and emphasize how the invention improves computer operation or advances a technical field.

The guidance signals continued scrutiny, but it also provides a clearer route to eligibility for AI and software inventions that solve real technical problems in specific, demonstrable ways.