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◈ USPTO PATENT EXAMINER STATISTICS

Examiner Shu Liu

TECH CENTER 2400 · 1 ART UNIT · 6 DECIDED APPLICATIONS · LAST ACTION JUL 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 1 ART UNIT
83%vs 89% art-unit average6 pts
higher than 3 of the 11 examiners with published rates in art unit 2417
AU avg 89%
0%
100%
Each short mark is one of the 11 examiners with published rates in art unit 2417; the dot is this examiner. The tick is the art-unit average, computed across all 12 examiners in the unit — a broader group than the 11 published marks, so it can sit apart from them.

Examiner Shu Liu has allowed 5 of 6 decided applications.

5 allowed
1 abandoned
Plus 47 applications still pending — not yet decided, so excluded from the rate.
DATA UPDATED JULY 22, 2026

What the data says.reading this examiner

Examiner Shu Liu maintains a public record across a single art unit within Technology Center 2400. Across a small number of decided applications, the examiner issued allowances in 83% of cases. This allowance rate reflects the share of applications that were allowed or abandoned among all decided applications in the examiner's pooled record. The 83% rate is computed from applications that reached a final disposition; pending applications are excluded from this calculation. The examiner's record spans one art unit, providing a focused view of activity within the assigned technology center.

How to read these numbers.

A pooled record aggregates outcomes across all art units assigned to an examiner. The allowance rate shown represents historical outcomes on decided applications and describes past activity only—it is not a prediction of any specific application's disposition. When an examiner works across multiple art units, the pooled figure blends outcomes across those units. Understanding this distinction is important: aggregate statistics describe patterns in a completed set of applications, not forward-looking indicators of how any individual case will be examined.

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.1 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 2417
53 APPS · 83% ALLOWANCE

Allowance ratewhere this examiner sits among peers

83%
higher than 3 of the 11 examiners with published rates in art unit 2417
AU avg 89%
0%
100%
Each short mark is one of the 11 examiners with published rates in art unit 2417; the dot is this examiner. The tick is the art-unit average, computed across all 12 examiners in the unit — a broader group than the 11 published marks, so it can sit apart from them.

Disposition6 decided applications

5 allowed
1 abandoned
Plus 47 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 25.3mo
disposed 37.2mo
0
48mo
Art-unit average: first action 24.1 mo, disposed 37.4 mo.

Rejection groundsexaminer ● vs art-unit average ○

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 eligibility
AU 19
19%
§102 — Anticipation (novelty)
no AU benchmark
100%
§103 — Obviousness
AU 83
100%
§112 — Written description & definiteness
no AU benchmark
51%
// FAQ

Questions about Examiner Shu Liu

  • What is Examiner Liu's overall allowance rate?
    Across a small number of decided applications, Examiner Liu issued allowances in 83% of cases. This percentage reflects allowed and abandoned applications only; pending applications are excluded.
  • How many art units does Examiner Liu cover?
    Examiner Liu's public record spans one art unit within Technology Center 2400. This pooled record aggregates all activity in that assigned unit.
  • What does the allowance rate mean for my application?
    The allowance rate describes the examiner's historical outcome on decided applications. It is not a prediction of any specific application's disposition and does not account for the unique facts, claims, or prior art relevant to any individual case.
  • Why is the sample size described as 'a small number'?
    The phrase 'a small number of decided applications' conveys the magnitude of the pooled dataset. Smaller sample sizes mean conclusions about patterns carry less statistical weight than larger datasets would.
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Where to go next.

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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Shu Liu has a public record within Technology Center 2400. Statistics are computed from publicly available USPTO records, refreshed on a recurring schedule. This page's data was last updated July 22, 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: 53 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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