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Examiner Zhan Chen

TECH CENTER 2100 · 2 ART UNITS · 105 DECIDED APPLICATIONS · LAST ACTION JUN 2018
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 2 ART UNITS

Examiner Zhan Chen has allowed 77 of 105 decided applications (73%) in Computer Architecture, Software, and Information Security.

73% pooled allowance · benchmarked per art unit below
DATA UPDATED JUNE 25, 2026
AU 2194 · 75%AU 2191 · 71%
// READING THIS EXAMINER

What the data says.

Examiner Zhan Chen maintains a public record across 2 art units in Technology Center 2100 (Computer Architecture, Software, and Information Security). Over 105 disposed applications, the examiner allowed 77, yielding an allowance rate of 73%. The allowance rate ranges from 71% to 75% across the examiner's art units. This pooled figure represents the examiner's historical allowance rate across all decided applications in TC 2100 and does not predict outcomes in any individual case.

// HOW TO READ THESE NUMBERS

How to read these numbers.

This record aggregates an examiner's performance across multiple art units within a single technology center. The overall allowance rate of 73% describes past dispositions and reflects the examiner's pooled history. The range (71%–75%) shows variation across the individual art units but does not indicate which art unit produced which rate. These figures are historical data, not forecasts of any specific application's outcome.

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 →

// BY ART UNIT

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.

◈ PRIMARY · ART UNIT 2194
60 APPS · 75% ALLOWANCE

Primarily examines program control and execution.

75% allowance (of decided)▏ art-unit average 69%
DISPOSITION45 / 15 / 0allowed / abandoned / pending
FIRST ACTION16 moart unit avg 28 mo
TOTAL PENDENCY37.1 moart unit avg 43.9 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility39% · art unit 52%
§102 — Anticipation (novelty)86%
§103 — Obviousness98% · art unit 79%
§112 — Written description & definiteness48%
// INTERVIEW SPLIT

Allowance rate for applications with an examiner interview versus without one.

WITH INTERVIEW89%allowance share
WITHOUT INTERVIEW50%+39 pt difference

A correlation, not proof that interviews cause allowances. Based on 38 decided applications with an interview and 22 without.

ART UNIT 2191
45 APPS · 71% ALLOWANCE · LIMITED DATA

Primarily examines software engineering, and error detection, correction, and monitoring.

71% allowance (of decided)▏ art-unit average 76%
DISPOSITION32 / 13 / 0allowed / abandoned / pending
FIRST ACTION16.6 moart unit avg 28.8 mo
TOTAL PENDENCY32.6 moart unit avg 41.1 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility44% · art unit 52%
§102 — Anticipation (novelty)58%
§103 — Obviousness95% · art unit 86%
§112 — Written description & definiteness26%

Based on 45 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

// FAQ

Questions about Examiner Zhan Chen

  • What is Examiner Chen's overall allowance rate?
    Across 105 disposed applications in Technology Center 2100, Examiner Chen allowed 77, resulting in an allowance rate of 73%.
  • How many art units does this examiner work in?
    Examiner Chen's record covers 2 art units (Art Units 2191 and 2194) within TC 2100.
  • Does the allowance rate vary across art units?
    Yes. The allowance rate ranges from 71% to 75% across the examiner's art units. This page reports the pooled aggregate; per-art-unit detail appears in a separate section.
  • Does this record predict what will happen to my application?
    No. This is a historical pooled record and is not a prediction of any specific application's outcome.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Zhan Chen 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: 105 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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