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Examiner Mewale A Ambaye

TECH CENTER 2400 · 4 ART UNITS · 1,062 DECIDED APPLICATIONS · LAST ACTION JUL 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 4 ART UNITS
93%vs 81% weighted peer average+12 pts

Examiner Mewale A Ambaye has allowed 986 of 1,062 decided applications.

986 allowed
Plus 53 applications still pending — not yet decided, so excluded from the rate.
The weighted peer average (81%) is each art unit's average below, weighted by this examiner's applications in it (4 art units).
DATA UPDATED JULY 22, 2026
AU 2469 · 94%AU 2475 · 85%AU 2416 · 67%AU 2472 · 0%

What the data says.reading this examiner

Mewale A Ambaye maintains a pooled allowance rate of 93% across more than a thousand decided applications in Technology Center 2400. The examiner's record spans 4 art units: 2416, 2469, 2472, and 2475. The allowance rate ranges from 85% to 94% across these art units, reflecting variation in the decided application sets within each unit. This pooled figure represents allowed and abandoned applications only; pending applications are excluded from the calculation.

How to read these numbers.

A pooled record aggregates data across multiple art units, presenting an overall snapshot of historical outcomes rather than a prediction for any individual application. The allowance rate reflects the examiner's past decided applications—those allowed or abandoned—and does not account for applications still pending. Variation across art units is typical and reflects differences in subject matter complexity and application characteristics within each unit, not changes in examination approach.

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 2469
965 APPS · 94% ALLOWANCE

Allowance ratewhere this examiner sits among peers

94%
higher than about 85% of the 26 examiners with published rates in art unit 2469
AU avg 82%
0%
100%
Each short mark is one of the 26 examiners with published rates in art unit 2469; the dot is this examiner. The tick is the art-unit average, computed across all 27 examiners in the unit — a broader group than the 26 published marks, so it can sit apart from them.

Disposition912 decided applications

861 allowed
Plus 53 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 18.1mo
disposed 26.3mo
0
36mo
Art-unit average: first action 20.9 mo, disposed 34.8 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
12%
§102 — Anticipation (novelty)
no AU benchmark
81%
§103 — Obviousness
AU 90
83%
§112 — Written description & definiteness
no AU benchmark
33%

Interview benefit

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

without
96%
3 pts
with
93%

A correlation, not proof that interviews cause allowances. Based on 511 decided applications with an interview and 401 without.

ART UNIT 2475
144 APPS · 85% ALLOWANCE

Allowance ratewhere this examiner sits among peers

85%
higher than about 60% of the 40 examiners with published rates in art unit 2475
AU avg 74%
0%
100%
Each short mark is one of the 40 examiners with published rates in art unit 2475; the dot is this examiner. The tick is the art-unit average.

Disposition144 decided applications

123 allowed
21 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 18.5mo
disposed 29.8mo
0
36mo
Art-unit average: first action 24.6 mo, disposed 38.1 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 22
18%
§102 — Anticipation (novelty)
no AU benchmark
33%
§103 — Obviousness
AU 88
92%
§112 — Written description & definiteness
no AU benchmark
16%

Interview benefit

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

without
77%
+18 pts
with
95%

A correlation, not proof that interviews cause allowances. Based on 65 decided applications with an interview and 79 without.

ART UNIT 2416
3 APPS · 67% ALLOWANCE · LIMITED DATA

Allowance ratewhere this examiner sits among peers

67%
higher than about 51% of the 144 examiners with published rates in art unit 2416
AU avg 58%
0%
100%
Each short mark is one of the 144 examiners with published rates in art unit 2416; the dot is this examiner. The tick is the art-unit average, computed across all 146 examiners in the unit — a broader group than the 144 published marks, so it can sit apart from them.

Disposition3 decided applications

2 allowed
1 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 24.6mo
disposed 30.9mo
0
36mo
Art-unit average: first action 33.2 mo, disposed 47.8 mo.
ART UNIT 2472
3 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 2472
AU avg 83%
0%
100%
Each short mark is one of the 45 examiners with published rates in art unit 2472; the dot is this examiner. The tick is the art-unit average, computed across all 47 examiners in the unit — a broader group than the 45 published marks, so it can sit apart from them.

Disposition3 decided applications

3 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 27.7mo
disposed 34.6mo
0
36mo
Art-unit average: first action 23.3 mo, disposed 35.1 mo.
// FAQ

Questions about Examiner Mewale A Ambaye

  • What is Mewale A Ambaye's overall allowance rate?
    The examiner's pooled allowance rate is 93% across more than a thousand decided applications in Technology Center 2400.
  • How many art units does this examiner cover?
    Mewale A Ambaye's record spans 4 art units: 2416, 2469, 2472, and 2475.
  • Does the allowance rate vary across art units?
    Yes. The allowance rate ranges from 85% to 94% across the examiner's art units. Detailed rates for each individual art unit appear in the per-art-unit sections of this page.
  • What does this pooled rate mean for my application?
    The pooled allowance rate is a historical aggregate and is not a prediction of any specific application's outcome. Individual results depend on claim content, prior art, and examination dynamics specific to each case.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Mewale A Ambaye 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: 1,115 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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