Examiner Daniel C Chappell has allowed 521 of 638 decided applications (82%) in Computer Architecture, Software, and Information Security.
Daniel C Chappell's public record spans 2 art units within Technology Center 2100 (Computer Architecture, Software, and Information Security). Across 638 disposed applications, 521 were allowed, yielding an 82% allowance rate. The examiner's record shows variation across art units, with allowance rates ranging from 22% to 85%. This pooled figure represents all decided cases—allowed and abandoned combined—and excludes any pending applications. The breadth of the record across multiple art units reflects examination activity across distinct subject areas within TC 2100.
A pooled record aggregates data across multiple art units, masking unit-by-unit variation. The overall allowance rate describes past decisions on applications that have been fully decided and is not a prediction of any specific application's outcome. The range (22% to 85%) reflects the diversity of allowance rates among the examiner's art units; applicants may consult the detailed per-unit data to find rates more specific to their subject matter. Pooled figures provide context on the examiner's overall activity but do not determine individual case results.
These are aggregate statistics from this examiner's past public record — not predictions about any specific application. The per-art-unit figures below show how the record varies across art units. Our approach to patent prosecution →
Each section benchmarks this examiner against that art unit's average. Figures are this examiner's own public record within the art unit; the overall rate above pools them.
Primarily examines input/output (I/O) data transfer, and memory access and allocation.
Allowance rate for applications with an examiner interview versus without one.
A correlation, not proof that interviews cause allowances. Based on 462 decided applications with an interview and 140 without.
Based on 36 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.
Methodology. This page pools every art unit in which Examiner Daniel C Chappell has a public record within Technology Center 2100. Statistics are computed from publicly available USPTO records, refreshed on a recurring schedule. This page's data was last updated June 25, 2026. The overall allowance rate is total allowed divided by total decided applications (allowed plus abandoned) across all art units — not an average of the per-art-unit rates; pending applications are excluded. Figures are rounded for display. Pooled sample: 677 applications.
Lynch LLP is not affiliated with, endorsed by, or sponsored by the United States Patent and Trademark Office. Examiner statistics are derived from publicly available USPTO data.
These statistics describe past examiner behavior and do not predict the outcome of any particular application. Past results do not guarantee future outcomes. Where this page compares an examiner's allowance rate to an art-unit average, that comparison is a factual description of the public record, not a characterization of any individual examiner's conduct or competence.
This page is for general informational purposes and is not legal advice. No attorney-client relationship is formed by viewing it. Full disclaimers →
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