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Examiner Brian S Cook

TECH CENTER 2100 · 4 ART UNITS · 510 DECIDED APPLICATIONS · LAST ACTION JUN 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 4 ART UNITS

Examiner Brian S Cook has allowed 322 of 510 decided applications (63%) in Computer Architecture, Software, and Information Security.

63% pooled allowance · benchmarked per art unit below
DATA UPDATED JUNE 25, 2026
AU 2127 · 66%AU 2146 · 69%AU 2123 · 47%AU 2187 · 74%
// READING THIS EXAMINER

What the data says.

Brian S Cook has a public record across 4 art units within Technology Center 2100 (Computer Architecture, Software, and Information Security). Over 510 disposed applications, the pooled allowance rate is 63%, with 322 allowed and 188 abandoned. The allowance rate varies across his art units, ranging from 47% to 74%. This range reflects differences in the composition and outcomes of applications examined within each art unit. The data presented here is an aggregate of his entire record across TC 2100 and does not predict outcomes for any individual application.

// HOW TO READ THESE NUMBERS

How to read these numbers.

A pooled record aggregates data from multiple art units, masking unit-level variation. The 63% allowance rate describes historical outcomes across all applications Cook examined in TC 2100, not a prediction for any new filing. The range (47% to 74%) illustrates that outcomes differ among his art units. Pooled figures are useful for understanding overall patterns but do not forecast specific application results. Detailed per-art-unit records are available separately for more granular analysis.

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 →

// BY ART UNIT

The record, art unit by 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 2127
155 APPS · 66% ALLOWANCE

Primarily examines neural-network / biological-model computing, and machine learning.

66% allowance (of decided)▏ art-unit average 67%
DISPOSITION103 / 52 / 0allowed / abandoned / pending
FIRST ACTION26.1 moart unit avg 28.5 mo
TOTAL PENDENCY44.2 moart unit avg 41.8 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility72% · art unit 51%
§102 — Anticipation (novelty)33%
§103 — Obviousness94% · art unit 77%
§112 — Written description & definiteness61%
// INTERVIEW SPLIT

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

WITH INTERVIEW78%allowance share
WITHOUT INTERVIEW53%+25 pt difference

A correlation, not proof that interviews cause allowances. Based on 85 decided applications with an interview and 70 without.

ART UNIT 2146
144 APPS · 69% ALLOWANCE

Primarily examines artificial-intelligence and machine-learning methods.

69% allowance (of decided)▏ art-unit average 50%
DISPOSITION99 / 45 / 0allowed / abandoned / pending
FIRST ACTION26.9 moart unit avg 32 mo
TOTAL PENDENCY42.9 moart unit avg 45 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility53% · art unit 70%
§102 — Anticipation (novelty)30%
§103 — Obviousness88% · art unit 90%
§112 — Written description & definiteness60%
// INTERVIEW SPLIT

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

WITH INTERVIEW76%allowance share
WITHOUT INTERVIEW63%+13 pt difference

A correlation, not proof that interviews cause allowances. Based on 62 decided applications with an interview and 82 without.

ART UNIT 2123
135 APPS · 47% ALLOWANCE

Primarily examines neural-network / biological-model computing, and machine learning.

47% allowance (of decided)▏ art-unit average 51%
DISPOSITION64 / 71 / 0allowed / abandoned / pending
FIRST ACTION26.7 moart unit avg 29.3 mo
TOTAL PENDENCY43 moart unit avg 43.8 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility80% · art unit 61%
§102 — Anticipation (novelty)38%
§103 — Obviousness97% · art unit 85%
§112 — Written description & definiteness70%
// INTERVIEW SPLIT

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

WITH INTERVIEW68%allowance share
WITHOUT INTERVIEW18%+50 pt difference

A correlation, not proof that interviews cause allowances. Based on 79 decided applications with an interview and 56 without.

ART UNIT 2187
122 APPS · 74% ALLOWANCE

Primarily examines computer-aided design (CAD).

74% allowance (of decided)▏ art-unit average 72%
DISPOSITION56 / 20 / 46allowed / abandoned / pending
FIRST ACTION32.9 moart unit avg 23.3 mo
TOTAL PENDENCY46.5 moart unit avg 36.4 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility46% · art unit 39%
§102 — Anticipation (novelty)39%
§103 — Obviousness92% · art unit 77%
§112 — Written description & definiteness47%
// INTERVIEW SPLIT

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

WITH INTERVIEW83%allowance share
WITHOUT INTERVIEW62%+21 pt difference

A correlation, not proof that interviews cause allowances. Based on 42 decided applications with an interview and 34 without.

// FAQ

Questions about Examiner Brian S Cook

  • What is Brian S Cook's overall allowance rate?
    His pooled allowance rate across all art units is 63%, based on 510 disposed applications (322 allowed, 188 abandoned). This is a historical record, not a prediction for any specific application.
  • How many art units does Brian S Cook cover?
    Cook has a record across 4 art units within TC 2100: 2123, 2127, 2146, and 2187.
  • Does his allowance rate vary by art unit?
    Yes. Across his art units, allowance rates range from 47% to 74%. Individual art-unit records are available in a separate section of this page.
  • What does this pooled record mean for my application?
    The pooled figures describe Cook's past record across TC 2100 and do not indicate the outcome of any specific application. Actual outcomes depend on claim scope, prior art, and examination details unique to each case.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Brian S Cook has a public record within Technology Center 2100. Statistics are computed from publicly available USPTO records, refreshed on a recurring schedule. This page's data was last updated June 25, 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: 556 applications.

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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