Last updated: September 17, 2026

Application No. 18/562,005

MANUFACTURING METHOD OF 1,4-DIOXANE DERIVATIVE, 1,4-DIOXANE DERIVATIVE, COMPOSITION CONTAINING 1,4-DIOXANE DERIVATIVE, AND MANUFACTURING METHOD OF (1,3-DIOXOLANE)-2- CARBOXYLIC ACID DERIVATIVE, (1,3-DIOXOLANE)-2-CARBOXYLIC ACID DERIVATIVE, AND COMPOSITION CONTAINING (1,3-DIOXOLANE)-2-CARBOXYLIC ACID DERIVATIVE

Non-Final OA

Filed

Nov 17, 2023

Priority

May 17, 2021 — JP 2021-083519 +1 more

Examiner

YOO, SUN JAE

Art Unit

1621

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Sagami Chemical Research Institute

OA Round

1 (Non-Final)

Interview Optional

— +0.3% interview lift. Interview lift (+0.3%) is below the 15.0% threshold. A written response is recommended.

Based on 1236 resolved cases, 2023–2026

Examiner Intelligence

YOO, SUN JAE View full profile →

Grants 71% — above average

Career Allowance Rate

878 granted / 1236 resolved

+11.0% vs TC avg

Minimal +0% lift

Without

With

+0.3%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

109 currently pending

Career history

1305

Total Applications

across all art units

Statute-Specific Performance

§101

1.1%

-38.9% vs TC avg

§103

17.1%

-22.9% vs TC avg

§102

27.8%

-12.2% vs TC avg

§112

33.8%

-6.2% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1236 resolved cases

Prosecution Timeline

Nov 17, 2023

Application Filed

Sep 10, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/620,225

Patent 12735424

FUSED PYRAZINE DERIVATIVES AS A2A / A2B INHIBITORS

2y 5m to grant Granted Sep 15, 2026

17/423,422

Patent 12692253

Antimicrobial Compounds and Methods

5y 0m to grant Granted Jul 28, 2026

18/289,449

Patent 12690381

ORGANOMETALLIC COMPOUND AND APPLICATION THEREOF

2y 8m to grant Granted Jul 21, 2026

17/618,591

Patent 12674026

PROCESS FOR PREPARING POLYOL-BASED ESTERS OF ACYL-CAPPED HYDROXY CARBOXYLIC ACIDS

4y 6m to grant Granted Jul 07, 2026

17/401,378

Patent 12661353

SPT5 INHIBITORS AND USES THEREOF

4y 10m to grant Granted Jun 23, 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

1-2

Expected OA Rounds

71%

Grant Probability

71%

With Interview (+0.3%)

2y 8m (~0m remaining)

Median Time to Grant

Low

PTA Risk

Based on 1236 resolved cases by this examiner. Grant probability derived from career allowance rate.