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◈ USPTO PATENT EXAMINER STATISTICS

Examiner Nigar Chowdhury

TECH CENTER 2400 · 1 ART UNIT · 813 DECIDED APPLICATIONS · LAST ACTION JUL 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 1 ART UNIT
76%vs 72% art-unit average+4 pts
higher than 8 of the 16 examiners with published rates in art unit 2484
AU avg 72%
0%
100%
Each short mark is one of the 16 examiners with published rates in art unit 2484; the dot is this examiner. The tick is the art-unit average.

Examiner Nigar Chowdhury has allowed 616 of 813 decided applications.

616 allowed
197 abandoned
Plus 44 applications still pending — not yet decided, so excluded from the rate.
DATA UPDATED JULY 22, 2026

What the data says.reading this examiner

Nigar Chowdhury maintains a public record in Technology Center 2400, covering one art unit. Across hundreds of decided applications, the examiner's allowance rate is 76%. This figure represents the share of applications that were allowed among all decided (allowed and abandoned) applications in the pooled record. The allowance rate is calculated from applications with final dispositions and does not include pending cases. This overall rate reflects the examiner's historical record across the art unit covered.

How to read these numbers.

This record aggregates all decided applications across the examiner's art units into a single pooled figure. The allowance rate of 76% describes past dispositions and reflects the historical distribution of allowances and abandonments. Pooled rates do not predict outcomes for any individual application and mask variation that may exist within specific art units. Individual art-unit records, where available separately, may differ from this aggregate.

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 2484
857 APPS · 76% ALLOWANCE

Allowance ratewhere this examiner sits among peers

76%
higher than 8 of the 16 examiners with published rates in art unit 2484
AU avg 72%
0%
100%
Each short mark is one of the 16 examiners with published rates in art unit 2484; the dot is this examiner. The tick is the art-unit average.

Disposition813 decided applications

616 allowed
197 abandoned
Plus 44 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 22mo
disposed 36.6mo
0
48mo
Art-unit average: first action 20.4 mo, disposed 34.5 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 24
22%
§102 — Anticipation (novelty)
no AU benchmark
75%
§103 — Obviousness
AU 77
77%
§112 — Written description & definiteness
no AU benchmark
20%

Interview benefit

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

without
73%
+12 pts
with
85%

A correlation, not proof that interviews cause allowances. Based on 170 decided applications with an interview and 643 without.

// FAQ

Questions about Examiner Nigar Chowdhury

  • What is Nigar Chowdhury's overall allowance rate?
    The examiner's allowance rate is 76%, calculated across hundreds of decided applications pooled from all art units in the examiner's record.
  • How many art units does this examiner cover?
    This record covers one art unit within Technology Center 2400.
  • Does the allowance rate predict my application's outcome?
    No. The allowance rate describes the examiner's past record on decided applications and is not a prediction of any specific application's outcome.
  • What does the allowance rate include?
    The rate reflects allowed and abandoned applications with final dispositions. Pending applications are not included in this calculation.
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Where to go next.

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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Nigar Chowdhury 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: 857 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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