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◈ USPTO PATENT EXAMINER STATISTICS

Examiner Phung M Chung

TECH CENTER 2100 · 4 ART UNITS · 1,091 DECIDED APPLICATIONS · LAST ACTION FEB 2022
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 4 ART UNITS
92%vs 77% weighted peer average+15 pts

Examiner Phung M Chung has allowed 1,009 of 1,091 decided applications in Computer Architecture, Software, and Information Security.

allowed1,009abandoned82pending0· pending excluded from the rate
The weighted peer average (77%) is each art unit's average below, weighted by this examiner's applications in it (4 art units).
DATA UPDATED JULY 14, 2026
AU 2117 · 90%AU 2111 · 97%AU 2138 · 92%AU 2133 · 97%
// READING THIS EXAMINER

What the data says.

Examiner Phung M Chung maintains a public record across 4 art units within Technology Center 2100 (Computer Architecture, Software, and Information Security). Across more than a thousand decided applications, the examiner's allowance rate is 92%. This rate represents the percentage of decided applications—those allowed or abandoned—in the pooled record. The allowance rate ranges from 90% to 97% across the examiner's art units. This spread reflects variation in the decisions rendered within different art units under the examiner's purview.

// HOW TO READ THESE NUMBERS

How to read these numbers.

A pooled record aggregates data from multiple art units into a single profile. The overall allowance rate describes past outcomes across all decided applications within those units combined. This aggregate figure is historical information about the examiner's record and is not a prediction for any individual application. Art-unit-specific rates may differ from the pooled rate and appear in separate detailed records.

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 2117
593 APPS · 90% ALLOWANCE

Primarily examines control or regulating systems.

90% allowance (of decided)▏ art-unit average 74%
DISPOSITION532 / 61 / 0allowed / abandoned / pending
FIRST ACTION21.4 moart unit avg 20.2 mo
TOTAL PENDENCY33.7 moart unit avg 33.2 mo
// REJECTION PROFILE
REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; §102 and §112 carry no art-unit benchmark.

§101 — Subject-matter eligibility34%art unit 33%+1 pt
§102 — Anticipation (novelty)31%no art-unit benchmark
§103 — Obviousness48%art unit 78%30 pts
§112 — Written description & definiteness77%no art-unit benchmark
// INTERVIEW SPLIT

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

WITH INTERVIEW94%allowance share
WITHOUT INTERVIEW88%+6 pt difference

A correlation, not proof that interviews cause allowances. Based on 160 decided applications with an interview and 433 without.

ART UNIT 2111
309 APPS · 97% ALLOWANCE
97% allowance (of decided)▏ art-unit average 80%
DISPOSITION299 / 10 / 0allowed / abandoned / pending
FIRST ACTION19.1 moart unit avg 20.2 mo
TOTAL PENDENCY25.7 moart unit avg 31.7 mo
// REJECTION PROFILE
REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; §102 and §112 carry no art-unit benchmark.

§101 — Subject-matter eligibility53%art unit 21%+32 pts
§102 — Anticipation (novelty)39%no art-unit benchmark
§103 — Obviousness41%art unit 72%31 pts
§112 — Written description & definiteness65%no art-unit benchmark
// INTERVIEW SPLIT

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

WITH INTERVIEW98%allowance share
WITHOUT INTERVIEW96%+2 pt difference

A correlation, not proof that interviews cause allowances. Based on 126 decided applications with an interview and 183 without.

ART UNIT 2138
103 APPS · 92% ALLOWANCE

Primarily examines input/output (I/O) data transfer, and memory access and allocation.

92% allowance (of decided)▏ art-unit average 82%
DISPOSITION95 / 8 / 0allowed / abandoned / pending
FIRST ACTION26.5 moart unit avg 19.5 mo
TOTAL PENDENCY42.7 moart unit avg 32.6 mo
// INTERVIEW SPLIT

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

WITH INTERVIEW75%allowance share
WITHOUT INTERVIEW95%-20 pt difference

A correlation, not proof that interviews cause allowances. Based on 16 decided applications with an interview and 87 without.

ART UNIT 2133
86 APPS · 97% ALLOWANCE

Primarily examines input/output (I/O) data transfer, and memory access and allocation.

97% allowance (of decided)▏ art-unit average 82%
DISPOSITION83 / 3 / 0allowed / abandoned / pending
FIRST ACTION25.1 moart unit avg 22.9 mo
TOTAL PENDENCY34.3 moart unit avg 34.8 mo
// FAQ

Questions about Examiner Phung M Chung

  • What is Examiner Phung M Chung's overall allowance rate?
    The examiner's allowance rate is 92% across more than a thousand decided applications, pooled across all art units.
  • How many art units does this examiner work in?
    The examiner works across 4 art units within TC 2100.
  • Does the allowance rate vary by art unit?
    Yes. The allowance rate ranges from 90% to 97% across the examiner's art units, reflecting variation in decisions within different art units.
  • What does this allowance rate mean for my application?
    This pooled rate describes the examiner's historical 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 Phung M Chung 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 July 14, 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: 1,091 applications.

Rejection rates. Each §-rate is the share of this examiner's applications that drew at least one office-action rejection in which that statutory ground appears; applications with no rejection on record are excluded, and because grounds can co-occur the four do not sum to 100%. The art-unit figure beside each is the unweighted mean of the per-examiner rates across the art unit, published for §101 and §103 only. Beside the overall allowance rate we show a benchmark: for a single-art-unit examiner it is exactly that art unit's average, labeled “art-unit average”; for an examiner spanning several art units it is the “weighted peer average” — the per-art-unit averages, weighted by this examiner's application count in each — labeled distinctly because it is a blended figure, not any single art unit's average. Both are built from the same per-art-unit averages the panels show.

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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