Last updated: April 19, 2026

Application No. 18/239,755

EFFLORESCENCE REMOVING CHEMICAL LIQUID

Final Rejection

Filed

Aug 30, 2023

Examiner

ELHILO, EISA B

Art Unit

1761

Tech Center

1700 — Chemical & Materials Engineering

Assignee

Daiichikagakukogyosho Co. Ltd.

OA Round

2 (Final)

Interview Optional

— +15.9% interview lift. This examiner has a relatively high allow rate; a written response may suffice.

Based on 1425 resolved cases, 2023–2026

Examiner Intelligence

ELHILO, EISA B View full profile →

Grants 83% — above average

Career Allow Rate

1184 granted / 1425 resolved

+18.1% vs TC avg

Strong +16% interview lift

Without

With

+15.9%

Interview Lift

resolved cases with interview

Fast prosecutor

1y 11m

Avg Prosecution

33 currently pending

Career history

1458

Total Applications

across all art units

Statute-Specific Performance

§101

0.1%

-39.9% vs TC avg

§103

37.5%

-2.5% vs TC avg

§102

19.2%

-20.8% vs TC avg

§112

25.1%

-14.9% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1425 resolved cases

Prosecution Timeline

Aug 30, 2023

Application Filed

Aug 19, 2025

Non-Final Rejection

Dec 02, 2025

Response Filed

Dec 17, 2025

Final Rejection (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/199,170

Patent 12600929

PROCESS FOR MAKING A PARTICULATE LAUNDRY DETERGENT COMPOSITION

2y 5m to grant Granted Apr 14, 2026

18/704,698

Patent 12589063

COMPOSITION COMPRISING A COMBINATION OF TWO PARTICULAR OXIDATION DYE PRECURSORS, AN AMPHOTERIC OR ZWITTERIONIC SURFACTANT AND A SOLID FATTY SUBSTANCE

2y 5m to grant Granted Mar 31, 2026

18/006,675

Patent 12584079

Fabric Softening Compositions

2y 5m to grant Granted Mar 24, 2026

17/637,307

Patent 12577506

USE OF ENCAPSULATED NATURAL COLORS

2y 5m to grant Granted Mar 17, 2026

18/265,588

Patent 12577505

GRANULES COMPRISING PROTONATED TRIAZACYCLIC COMPOUNDS AND BLEACHING AGENT AND CLEANING AGENT COMPRISING THE SAME

2y 5m to grant Granted Mar 17, 2026

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

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.

Prosecution Projections

3-4

Expected OA Rounds

83%

Grant Probability

99%

With Interview (+15.9%)

1y 11m

Median Time to Grant

Moderate

PTA Risk

Based on 1425 resolved cases by this examiner. Grant probability derived from career allow rate.