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◈ USPTO PATENT EXAMINER STATISTICS

Examiner John Fan

TECH CENTER 2400 · 4 ART UNITS · 294 DECIDED APPLICATIONS · LAST ACTION APR 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 4 ART UNITS
70%vs 68% weighted peer average+2 pts

Examiner John Fan has allowed 207 of 294 decided applications.

207 allowed
87 abandoned
Plus 29 applications still pending — not yet decided, so excluded from the rate.
The weighted peer average (68%) is each art unit's average below, weighted by this examiner's applications in it (4 art units).
DATA UPDATED JULY 22, 2026
AU 2454 · 62%AU 2441 · 86%AU 2456 · 75%AU 2445 · 0%

What the data says.reading this examiner

John Fan has decided hundreds of applications across Technology Center 2400, spanning four art units (2441, 2445, 2454, 2456). His pooled allowance rate is 70%, representing the share of decided applications that resulted in allowance across all art units combined. The allowance rate across his art units ranges from 62% to 86%, reflecting variation in outcomes by art unit. This record is a historical aggregate and does not predict outcomes in any individual application.

How to read these numbers.

A pooled record aggregates an examiner's performance across multiple art units into a single allowance-rate figure. The overall rate summarizes past decisions on allowed and abandoned applications and does not predict how any specific application will be examined or decided. The range across art units illustrates that outcomes vary by art unit. These statistics are descriptive of the past record only.

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.4 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 2454
167 APPS · 62% ALLOWANCE

Allowance ratewhere this examiner sits among peers

62%
higher than about 32% of the 57 examiners with published rates in art unit 2454
AU avg 70%
0%
100%
Each short mark is one of the 57 examiners with published rates in art unit 2454; the dot is this examiner. The tick is the art-unit average, computed across all 58 examiners in the unit — a broader group than the 57 published marks, so it can sit apart from them.

Disposition167 decided applications

103 allowed
64 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 21.3mo
disposed 42.7mo
0
48mo
Art-unit average: first action 23.8 mo, disposed 40.6 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 41
70%
§102 — Anticipation (novelty)
no AU benchmark
38%
§103 — Obviousness
AU 82
99%
§112 — Written description & definiteness
no AU benchmark
45%

Interview benefit

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

without
41%
+25 pts
with
66%

A correlation, not proof that interviews cause allowances. Based on 138 decided applications with an interview and 29 without.

ART UNIT 2441
103 APPS · 86% ALLOWANCE

Allowance ratewhere this examiner sits among peers

86%
higher than about 78% of the 37 examiners with published rates in art unit 2441
AU avg 69%
0%
100%
Each short mark is one of the 37 examiners with published rates in art unit 2441; the dot is this examiner. The tick is the art-unit average.

Disposition86 decided applications

74 allowed
Plus 17 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 17.3mo
disposed 32.3mo
0
36mo
Art-unit average: first action 24.1 mo, disposed 40.1 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 42
22%
§102 — Anticipation (novelty)
no AU benchmark
48%
§103 — Obviousness
AU 77
98%
§112 — Written description & definiteness
no AU benchmark
27%

Interview benefit

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

without
74%
+20 pts
with
94%

A correlation, not proof that interviews cause allowances. Based on 51 decided applications with an interview and 35 without.

ART UNIT 2456
40 APPS · 75% ALLOWANCE · LIMITED DATA

Allowance ratewhere this examiner sits among peers

75%
higher than about 64% of the 42 examiners with published rates in art unit 2456
AU avg 58%
0%
100%
Each short mark is one of the 42 examiners with published rates in art unit 2456; the dot is this examiner. The tick is the art-unit average.

Disposition40 decided applications

30 allowed
10 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 17mo
disposed 41.3mo
0
48mo
Art-unit average: first action 24.3 mo, disposed 42.4 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 42
20%
§102 — Anticipation (novelty)
no AU benchmark
25%
§103 — Obviousness
AU 84
100%
§112 — Written description & definiteness
no AU benchmark
30%

Based on 40 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

ART UNIT 2445
13 APPS · 0% ALLOWANCE · LIMITED DATA

Allowance ratewhere this examiner sits among peers

0%
higher than about 0% of the 45 examiners with published rates in art unit 2445
AU avg 60%
0%
100%
Each short mark is one of the 45 examiners with published rates in art unit 2445; the dot is this examiner. The tick is the art-unit average.

Disposition1 decided applications

1 abandoned
Plus 12 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 16.7mo
disposed 24.8mo
0
36mo
Art-unit average: first action 26.6 mo, disposed 47.1 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 40
17%
§102 — Anticipation (novelty)
no AU benchmark
67%
§103 — Obviousness
AU 84
100%
§112 — Written description & definiteness
no AU benchmark
17%

Based on 13 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

// FAQ

Questions about Examiner John Fan

  • What is John Fan's overall allowance rate?
    70% of his decided applications across Technology Center 2400 resulted in allowance.
  • How many art units does John Fan work in?
    John Fan has a record in four art units: 2441, 2445, 2454, and 2456.
  • Does the allowance rate vary by art unit?
    Yes. The allowance rate across his art units ranges from 62% to 86%, indicating variation in outcomes by art unit.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner John Fan 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: 323 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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