Examiner Jeffrey Chang

What the data says.

Jeffrey Chang maintains a public record across 2 art units within Technology Center 2100 (Computer Architecture, Software, and Information Security). Over 136 disposed applications, Chang allowed 87 and 49 were abandoned, yielding an allowance rate of 64%. This rate represents decided cases and excludes any pending matters. The pooled figure aggregates his record across both art units and reflects historical outcomes on applications that reached final disposition.

How to read these numbers.

This pooled record combines Chang's work across multiple art units in TC 2100. The 64% allowance rate describes past dispositions—allowed plus abandoned applications—and is not a prediction of any specific application's outcome. Aggregate figures across art units mask variation within individual units. This cross-unit snapshot reflects overall historical performance and does not forecast results in any particular art unit or case.

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 information retrieval and database structures.

Primarily examines information retrieval and database structures.

Questions about Examiner Jeffrey Chang

• 01What is Jeffrey Chang's overall allowance rate?

  Chang's allowance rate is 64%, based on 136 disposed applications (87 allowed, 49 abandoned). This figure is historical and is not a prediction of any specific application.
• 02How many art units does Chang work in?

  Chang works across 2 art units (2159 and 2169) within Technology Center 2100 (Computer Architecture, Software, and Information Security).
• 03What does the pooled allowance rate tell me?

  The pooled rate aggregates outcomes across all art units and represents past dispositions. It describes historical performance and does not predict results in any individual case or art unit.

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