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Examiner Fen Christopher Tamulonis

TECH CENTER 2100 · 2 ART UNITS · 102 DECIDED APPLICATIONS · LAST ACTION MAR 2024
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 2 ART UNITS

Examiner Fen Christopher Tamulonis has allowed 53 of 102 decided applications (52%) in Computer Architecture, Software, and Information Security.

52% pooled allowance · benchmarked per art unit below
DATA UPDATED JUNE 25, 2026
AU 2126 · 51%AU 2123 · 60%
// READING THIS EXAMINER

What the data says.

Fen Christopher Tamulonis maintains a public record in Technology Center 2100 (Computer Architecture, Software, and Information Security) spanning 2 art units. Across 102 disposed applications, the examiner allowed 53 and abandoned 49. The allowance rate is 52% of decided applications. This pooled figure reflects the examiner's combined record across multiple art units and represents the historical rate at which applications were allowed relative to total disposed counts. The record does not include pending applications.

// HOW TO READ THESE NUMBERS

How to read these numbers.

This pooled record aggregates data across all art units where the examiner works. The 52% allowance rate describes the past disposal record and is calculated from decided applications only—pending cases are excluded. Pooled figures represent the examiner's overall history, not a prediction of any specific application's outcome. Art-unit-specific records, where available separately, may show variation and are independent of this aggregate summary.

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 2126
92 APPS · 51% ALLOWANCE

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

51% allowance (of decided)▏ art-unit average 63%
DISPOSITION47 / 45 / 0allowed / abandoned / pending
FIRST ACTION30.5 moart unit avg 29.4 mo
TOTAL PENDENCY53 moart unit avg 44.4 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility58% · art unit 53%
§102 — Anticipation (novelty)63%
§103 — Obviousness94% · art unit 88%
§112 — Written description & definiteness90%
// INTERVIEW SPLIT

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

WITH INTERVIEW62%allowance share
WITHOUT INTERVIEW14%+48 pt difference

A correlation, not proof that interviews cause allowances. Based on 71 decided applications with an interview and 21 without.

ART UNIT 2123
10 APPS · 60% ALLOWANCE · LIMITED DATA

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

60% allowance (of decided)▏ art-unit average 51%
DISPOSITION6 / 4 / 0allowed / abandoned / pending
FIRST ACTION34.4 moart unit avg 29.3 mo
TOTAL PENDENCY42.1 moart unit avg 43.8 mo
// REJECTION PROFILE
§101 — Subject-matter eligibility89% · art unit 61%
§102 — Anticipation (novelty)22%
§103 — Obviousness100% · art unit 85%
§112 — Written description & definiteness89%

Based on 10 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

// FAQ

Questions about Examiner Fen Christopher Tamulonis

  • What is this examiner's overall allowance rate?
    The allowance rate is 52%, calculated across 102 disposed applications (53 allowed, 49 abandoned). This is a historical measure and not a prediction of any specific application's outcome.
  • How many art units does this examiner work in?
    The examiner works in 2 art units (2123 and 2126) within TC 2100. This pooled record aggregates data across both.
  • What does the 52% allowance rate mean?
    It means that of the 102 applications decided (allowed or abandoned), 52% were allowed. The rate describes past dispositions and does not indicate the likely outcome of any pending or future application.
  • Does this record include pending applications?
    No. The allowance rate is based on 102 disposed applications only. Pending cases are excluded from the calculation.
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METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Fen Christopher Tamulonis 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: 102 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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