Examiner Keith Chi Hang Yuen

What the data says.

Keith Chi Hang Yuen maintains a public record across two art units within Technology Center 2100 (Computer Architecture, Software, and Information Security). Over 51 disposed applications, the examiner's allowance rate is 53%. This figure represents applications marked allowed or abandoned as a share of all decided cases, excluding pending matters. The record spans art units 2169 and 2199. Twenty-seven applications were allowed; twenty-four were abandoned. This pooled figure aggregates outcomes across both art units and reflects the examiner's historical record on cases that have reached final disposition.

How to read these numbers.

This pooled record combines outcomes from multiple art units in TC 2100 into a single allowance-rate figure. Aggregate statistics describe past decisions across a portfolio, not the outcome of any particular application. Individual art units may exhibit different patterns. The allowance rate reflects historical disposed cases and is correlational data—it does not predict the result of a future filing or establish a causal relationship between any examiner action and allowance or abandonment.

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 →

The record, art unit by art unit.

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 software engineering, and program control and execution.

Primarily examines information retrieval and database structures.

Questions about Examiner Keith Chi Hang Yuen

• 01What is this examiner's overall allowance rate?

  The allowance rate is 53%, based on 51 disposed applications (27 allowed, 24 abandoned). This is a historical figure and is not a prediction of any specific application.
• 02How many art units does this examiner work in?

  The examiner's public record spans two art units (2169 and 2199) within Technology Center 2100 (Computer Architecture, Software, and Information Security). The pooled rate combines outcomes from both.
• 03Does the allowance rate apply to my application?

  No. The pooled rate describes past disposed cases and is not a prediction of any individual application's outcome. Actual results depend on claim scope, prior art, and application-specific circumstances.
• 04Why are there two art units?

  The examiner works across multiple art units within TC 2100. The figures shown here aggregate all disposed cases from both units into a single historical record.

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