LYNCH·LLP
HOME/EXAMINERS/TC 2100/CHUONG D NGO
◈ FIND AN EXAMINER, ART UNIT, OR APPLICATION #
◈ USPTO PATENT EXAMINER STATISTICS

Examiner Chuong D Ngo

TECH CENTER 2100 · 5 ART UNITS · 1,370 DECIDED APPLICATIONS · LAST ACTION NOV 2022
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 5 ART UNITS
81%vs 71% weighted peer average+10 pts

Examiner Chuong D Ngo has allowed 1,107 of 1,370 decided applications in Computer Architecture, Software, and Information Security.

allowed1,107abandoned263pending0· pending excluded from the rate
The weighted peer average (71%) is each art unit's average below, weighted by this examiner's applications in it (5 art units).
DATA UPDATED JULY 14, 2026
AU 2193 · 77%AU 2182 · 88%AU 2124 · 90%AU 2183 · 70%AU 2121 · 100%
// READING THIS EXAMINER

What the data says.

Chuong D Ngo maintains an allowance rate of 81% across more than a thousand decided applications in Technology Center 2100 (Computer Architecture, Software, and Information Security). The examiner's public record spans five art units within this technology center. Allowance rates across these art units range from 70% to 90%, reflecting variation in the decided application sets within each unit. The 81% pooled figure represents the aggregate of allowed and abandoned applications across all five art units and does not predict the outcome of any specific application.

// HOW TO READ THESE NUMBERS

How to read these numbers.

This record aggregates Chuong D Ngo's decided applications across five distinct art units in TC 2100. The pooled allowance rate of 81% describes historical disposition data, not a forecast for any individual case. When an examiner works across multiple art units, the overall figure represents a weighted average and masks unit-by-unit variation (here, 70% to 90%). This pooled statistic alone does not characterize how any particular application will be examined.

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 2193
751 APPS · 77% ALLOWANCE

Primarily examines software engineering, and error detection, correction, and monitoring.

77% allowance (of decided)▏ art-unit average 70%
DISPOSITION575 / 176 / 0allowed / abandoned / pending
FIRST ACTION38 moart unit avg 30.6 mo
TOTAL PENDENCY52 moart unit avg 44 mo
// REJECTION PROFILE
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 eligibility55%art unit 52%+3 pts
§102 — Anticipation (novelty)41%no art-unit benchmark
§103 — Obviousness55%art unit 83%28 pts
§112 — Written description & definiteness55%no art-unit benchmark
// INTERVIEW SPLIT

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

WITH INTERVIEW94%allowance share
WITHOUT INTERVIEW71%+23 pt difference

A correlation, not proof that interviews cause allowances. Based on 173 decided applications with an interview and 578 without.

ART UNIT 2182
456 APPS · 88% ALLOWANCE

Primarily examines data-processing methods for specific functions, and processing data by its order or content.

88% allowance (of decided)▏ art-unit average 72%
DISPOSITION400 / 56 / 0allowed / abandoned / pending
FIRST ACTION20.4 moart unit avg 24.3 mo
TOTAL PENDENCY28.7 moart unit avg 37.3 mo
// REJECTION PROFILE
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 eligibility53%art unit 30%+23 pts
§102 — Anticipation (novelty)49%no art-unit benchmark
§103 — Obviousness59%art unit 76%17 pts
§112 — Written description & definiteness54%no art-unit benchmark
// INTERVIEW SPLIT

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

WITH INTERVIEW87%allowance share
WITHOUT INTERVIEW88%-1 pt difference

A correlation, not proof that interviews cause allowances. Based on 170 decided applications with an interview and 286 without.

ART UNIT 2124
88 APPS · 90% ALLOWANCE

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

90% allowance (of decided)▏ art-unit average 64%
DISPOSITION79 / 9 / 0allowed / abandoned / pending
FIRST ACTION29 moart unit avg 28.5 mo
TOTAL PENDENCY36.8 moart unit avg 41.8 mo
ART UNIT 2183
73 APPS · 70% ALLOWANCE

Primarily examines program control and execution.

70% allowance (of decided)▏ art-unit average 72%
DISPOSITION51 / 22 / 0allowed / abandoned / pending
FIRST ACTION24.6 moart unit avg 25 mo
TOTAL PENDENCY37.2 moart unit avg 40.1 mo
// REJECTION PROFILE
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 eligibility61%art unit 34%+27 pts
§102 — Anticipation (novelty)56%no art-unit benchmark
§103 — Obviousness65%art unit 79%14 pts
§112 — Written description & definiteness49%no art-unit benchmark
// INTERVIEW SPLIT

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

WITH INTERVIEW76%allowance share
WITHOUT INTERVIEW67%+9 pt difference

A correlation, not proof that interviews cause allowances. Based on 21 decided applications with an interview and 52 without.

ART UNIT 2121
2 APPS · 100% ALLOWANCE · LIMITED DATA

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

100% allowance (of decided)▏ art-unit average 57%
DISPOSITION2 / 0 / 0allowed / abandoned / pending
FIRST ACTION4.5 moart unit avg 27 mo
TOTAL PENDENCY8.6 moart unit avg 39.9 mo
// FAQ

Questions about Examiner Chuong D Ngo

  • What is Chuong D Ngo's overall allowance rate?
    The allowance rate is 81% across more than a thousand decided applications pooled from all art units on the examiner's record.
  • How many art units does this examiner work in?
    Chuong D Ngo has a record spanning five art units within TC 2100.
  • Do allowance rates vary across the examiner's art units?
    Yes. Allowance rates across the five art units range from 70% to 90%. This range reflects variation in the decided application sets within each unit.
  • Does this record predict outcomes in my application?
    No. This pooled statistic describes past dispositions and is not a prediction of any specific application's outcome.
◈ HOW LYNCH LLP CAN HELP

Where to go next.

Lynch LLP represents applicants in patent prosecution before the USPTO. These are general resources about the firm's services — not advice about this examiner or any specific application.

How the firm prosecutes patentsApplication drafting, office-action responses, and prosecution strategy before the USPTO.PTAB trials and patent appealsAppeals, inter partes review, and patent-owner defense before the PTAB.Building a patent portfolioHow a patent portfolio is sequenced and built over a multi-year horizon.Booking a consultationFree and paid consultation options across the firm's attorneys.
◈ RESPONDING TO AN OFFICE ACTION

Strategy, not paperwork. Talk to the attorney doing the work.

Lynch LLP represents applicants in patent prosecution before the USPTO. Book a consultation to discuss your matter with the attorney who would handle it.

Book a 30-minute consultation →
METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Chuong D Ngo 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 July 14, 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: 1,370 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 →

ATTORNEY ADVERTISING — Sean Lynch, Partner, Lynch LLP