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◈ USPTO PATENT EXAMINER STATISTICS

Examiner Ho T Shiu

TECH CENTER 2400 · 2 ART UNITS · 473 DECIDED APPLICATIONS · LAST ACTION JUL 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 2 ART UNITS
73%vs 73% weighted peer average±0 pts

Examiner Ho T Shiu has allowed 345 of 473 decided applications.

345 allowed
128 abandoned
Plus 45 applications still pending — not yet decided, so excluded from the rate.
The weighted peer average (73%) is each art unit's average below, weighted by this examiner's applications in it (2 art units).
DATA UPDATED JULY 22, 2026
AU 2457 · 68%AU 2443 · 81%

What the data says.reading this examiner

Ho T Shiu maintains a public record across 2 art units in Technology Center 2400, spanning hundreds of decided applications. The examiner's overall allowance rate is 73% of decided applications (allowed and abandoned combined). Allowance rates across the art units range from 68% to 81%. This pooled figure aggregates the examiner's record across different subject areas and represents the historical rate of allowances in applications that have been decided, whether by allowance or abandonment.

How to read these numbers.

A pooled record combines allowance statistics across multiple art units into a single aggregate figure. This pooled allowance rate of 73% describes what occurred in the examiner's past decided applications and is not a prediction of any specific application's outcome. The range (68% to 81%) shows variation among individual art units; the aggregate reflects the overall tendency across all units combined, not performance in any single unit.

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.2 art units

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 2457
301 APPS · 68% ALLOWANCE

Allowance ratewhere this examiner sits among peers

68%
higher than about 15% of the 39 examiners with published rates in art unit 2457
AU avg 76%
0%
100%
Each short mark is one of the 39 examiners with published rates in art unit 2457; the dot is this examiner. The tick is the art-unit average, computed across all 40 examiners in the unit — a broader group than the 39 published marks, so it can sit apart from them.

Disposition301 decided applications

206 allowed
95 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 25.7mo
disposed 47.3mo
0
48mo
Art-unit average: first action 21.9 mo, disposed 39.3 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 39
42%
§102 — Anticipation (novelty)
no AU benchmark
67%
§103 — Obviousness
AU 73
94%
§112 — Written description & definiteness
no AU benchmark
41%

Interview benefit

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

without
70%
3 pts
with
67%

A correlation, not proof that interviews cause allowances. Based on 196 decided applications with an interview and 105 without.

ART UNIT 2443
217 APPS · 81% ALLOWANCE

Allowance ratewhere this examiner sits among peers

81%
higher than about 53% of the 45 examiners with published rates in art unit 2443
AU avg 69%
0%
100%
Each short mark is one of the 45 examiners with published rates in art unit 2443; the dot is this examiner. The tick is the art-unit average.

Disposition172 decided applications

139 allowed
33 abandoned
Plus 45 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 18.3mo
disposed 32.8mo
0
36mo
Art-unit average: first action 23.1 mo, disposed 40.7 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 37
9%
§102 — Anticipation (novelty)
no AU benchmark
70%
§103 — Obviousness
AU 77
94%
§112 — Written description & definiteness
no AU benchmark
17%

Interview benefit

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

without
78%
+5 pts
with
83%

A correlation, not proof that interviews cause allowances. Based on 98 decided applications with an interview and 74 without.

// FAQ

Questions about Examiner Ho T Shiu

  • What is Ho T Shiu's overall allowance rate?
    73% of the examiner's decided applications (allowed and abandoned) across all art units.
  • How many art units does this examiner work in?
    2 art units in TC 2400.
  • Does the allowance rate vary by art unit?
    Yes. Allowance rates range from 68% to 81% across the individual art units, with the pooled aggregate at 73%.
  • How large is the sample size?
    The record spans hundreds of decided applications pooled across all art units.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Ho T Shiu 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: 518 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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