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Examiner Vei Chung Liang

TECH CENTER 2100 · 3 ART UNITS · 157 DECIDED APPLICATIONS · LAST ACTION OCT 2012
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 3 ART UNITS
58%vs 60% weighted peer average2 pts

Examiner Vei Chung Liang has allowed 91 of 157 decided applications in Computer Architecture, Software, and Information Security.

allowed91abandoned66pending0· pending excluded from the rate
The weighted peer average (60%) is each art unit's average below, weighted by this examiner's applications in it (3 art units).
DATA UPDATED JULY 14, 2026
AU 2165 · 60%AU 2157 · 78%AU 2169 · 13%
// READING THIS EXAMINER

What the data says.

Examiner Vei Chung Liang maintains a public record spanning 3 art units within Technology Center 2100 (Computer Architecture, Software, and Information Security). Across hundreds of decided applications, the examiner's allowance rate is 58%. Allowance rates across the individual art units range from 60% to 78%. This pooled figure aggregates the examiner's work across all three art units and reflects the percentage of applications that were allowed among all applications with final decisions (allowed or abandoned, excluding pending cases).

// HOW TO READ THESE NUMBERS

How to read these numbers.

This profile presents a pooled record aggregating work across multiple art units in TC 2100. The 58% allowance rate describes the examiner's past decisions on hundreds of cases across all assigned art units combined. Pooled figures do not predict outcomes in any specific application and do not indicate how the examiner will examine any particular case. The range of rates across individual art units reflects variation in the examiner's record by art unit; applicants examining individual-art-unit records can find unit-specific statistics separately.

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 2165
114 APPS · 60% ALLOWANCE

Primarily examines information retrieval and database structures.

60% allowance (of decided)▏ art-unit average 63%
DISPOSITION68 / 46 / 0allowed / abandoned / pending
FIRST ACTION26.4 moart unit avg 22.5 mo
TOTAL PENDENCY45.3 moart unit avg 39.6 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 eligibility63%art unit 54%+9 pts
§102 — Anticipation (novelty)92%no art-unit benchmark
§103 — Obviousness88%art unit 82%+6 pts
§112 — Written description & definiteness58%no art-unit benchmark
// INTERVIEW SPLIT

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

WITH INTERVIEW71%allowance share
WITHOUT INTERVIEW42%+29 pt difference

A correlation, not proof that interviews cause allowances. Based on 69 decided applications with an interview and 45 without.

ART UNIT 2157
27 APPS · 78% ALLOWANCE · LIMITED DATA

Primarily examines information retrieval and database structures.

78% allowance (of decided)▏ art-unit average 55%
DISPOSITION21 / 6 / 0allowed / abandoned / pending
FIRST ACTION24.7 moart unit avg 28 mo
TOTAL PENDENCY43.8 moart unit avg 46.6 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 eligibility71%art unit 48%+23 pts
§102 — Anticipation (novelty)95%no art-unit benchmark
§103 — Obviousness71%art unit 85%14 pts
§112 — Written description & definiteness48%no art-unit benchmark

Based on 27 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

ART UNIT 2169
16 APPS · 13% ALLOWANCE · LIMITED DATA

Primarily examines information retrieval and database structures.

13% allowance (of decided)▏ art-unit average 47%
DISPOSITION2 / 14 / 0allowed / abandoned / pending
FIRST ACTION27.4 moart unit avg 24.8 mo
TOTAL PENDENCY35 moart unit avg 40 mo
// FAQ

Questions about Examiner Vei Chung Liang

  • What is Examiner Liang's overall allowance rate?
    The examiner's pooled allowance rate is 58% across hundreds of decided applications in TC 2100.
  • How many art units does this examiner work in?
    The examiner has a public record spanning 3 art units (2157, 2165, 2169) within Technology Center 2100.
  • Do allowance rates vary across the examiner's art units?
    Yes. Allowance rates across the examiner's individual art units range from 60% to 78%. Pooled rates aggregate these variations and do not reflect the rate in any single art unit.
  • What does this pooled record mean for my application?
    This pooled figure describes past decisions and is not a prediction of any specific application's outcome. Individual application results depend on claim scope, specification, prior art, and examination interactions.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Vei Chung Liang 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: 157 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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