Last updated: May 04, 2026

Application No. 18/315,455

GAS ANALYZER

Final Rejection

Filed

May 10, 2023

Priority

Oct 24, 2017 — JP 2017-205223 +2 more

Examiner

NIA, FATEMEH ESFANDIARI

Art Unit

2855

Tech Center

2800 — Semiconductors & Electrical Systems

Assignee

Yamaguchi University

OA Round

4 (Final)

Interview Optional

— +22.6% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 74% grant rate with +22.6% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 220 resolved cases, 2023–2026

Examiner Intelligence

NIA, FATEMEH ESFANDIARI View full profile →

Grants 74% — above average

Career Allowance Rate

163 granted / 220 resolved

+6.1% vs TC avg

Strong +23% interview lift

Without

With

+22.6%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

45 currently pending

Career history

265

Total Applications

across all art units

Statute-Specific Performance

§101

2.5%

-37.5% vs TC avg

§103

50.9%

+10.9% vs TC avg

§102

14.7%

-25.3% vs TC avg

§112

27.4%

-12.6% vs TC avg

Black line = Tech Center average estimate • Based on career data from 220 resolved cases

Prosecution Timeline

Show 3 earlier events

Feb 18, 2025

Final Rejection

May 19, 2025

Request for Continued Examination

May 20, 2025

Response after Non-Final Action

Jun 24, 2025

Non-Final Rejection

Aug 29, 2025

Response Filed

Sep 19, 2025

Final Rejection

Oct 20, 2025

Interview Requested

Oct 31, 2025

Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

19/085,345

Patent 12591962

METHOD OF EXAMINING A PARTICULATE SUBSTANCE COMPRISING INORGANIC PARTICLES, COMPRISING DETERMINING AT LEAST ONE BINDER QUALITY ASSOCIATED PROPERTY

1y 0m to grant Granted Mar 31, 2026

18/953,386

Patent 12584874

GAS MEASURING DEVICE AND GAS MEASURING PROCESS FOR A TARGET GAS WITH IMPROVED COMPENSATION OF AN AMBIENT CONDITION

1y 4m to grant Granted Mar 24, 2026

17/438,667

Patent 12578255

DETERMINING A VAPOR PRESSURE OF A FLUID IN A METER ASSEMBLY

4y 6m to grant Granted Mar 17, 2026

17/551,978

Patent 12566148

HYDROGEN SULFIDE SENSOR AND ASSOCIATED METHODS

4y 2m to grant Granted Mar 03, 2026

18/731,644

Patent 12560522

APPARATUS FOR MEASURING PROPERTIES OF PARTICLES IN A SOLUTION AND RELATED METHODS

1y 8m to grant Granted Feb 24, 2026

Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.

Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

5-6

Expected OA Rounds

74%

Grant Probability

97%

With Interview (+22.6%)

2y 8m (~0m remaining)

Median Time to Grant

High

PTA Risk

Based on 220 resolved cases by this examiner. Grant probability derived from career allowance rate.

GAS ANALYZER

Interview Optional

Examiner Intelligence

Statute-Specific Performance

Prosecution Timeline

Precedent Cases

Applications granted by this same examiner with similar technology

Strategy Recommendation AI-generated — please review before filing

Prosecution Projections

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