Last updated: July 17, 2026

Application No. 18/292,775

OXASPIRO DERIVATIVE, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Non-Final OA

Filed

Jan 26, 2024

Priority

Aug 02, 2021 — CN 202110888850.X +2 more

Examiner

YOO, SUN JAE

Art Unit

1621

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Jiangsu Nhwa Pharmaceutical Co. Ltd.

OA Round

1 (Non-Final)

Interview Optional

— +0.0% interview lift. Interview lift (+0.0%) is below the 15.0% threshold. A written response is recommended.

Based on 1231 resolved cases, 2023–2026

Examiner Intelligence

YOO, SUN JAE View full profile →

Grants 71% — above average

Career Allowance Rate

875 granted / 1231 resolved

+11.1% vs TC avg

Minimal +0% lift

Without

With

+0.0%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

102 currently pending

Career history

1292

Total Applications

across all art units

Statute-Specific Performance

§101

0.7%

-39.3% vs TC avg

§103

19.8%

-20.2% vs TC avg

§102

27.5%

-12.5% vs TC avg

§112

24.6%

-15.4% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1231 resolved cases

Prosecution Timeline

Jan 26, 2024

Application Filed

Jun 16, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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

18/643,948

Patent 12662459

METHOD FOR THE SYNTHESIS OF 3-R-1,4,2-DIOXAZOL-5-ONES

2y 2m to grant Granted Jun 23, 2026

17/766,601

Patent 12649735

COMPOUND HAVING BRD4 INHIBITORY ACTIVITY, PREPARATION METHOD THEREFOR AND USE THEREOF

4y 2m to grant Granted Jun 09, 2026

17/907,176

Patent 12649738

1,3-DIHYDRO-2H-PYRROLO[3,4-C]PYRIDINE DERIVATIVES AS GABAA A5 RECEPTOR MODULATORS

3y 8m to grant Granted Jun 09, 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.

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Prosecution Projections

1-2

Expected OA Rounds

71%

Grant Probability

71%

With Interview (+0.0%)

2y 8m (~3m remaining)

Median Time to Grant

Low

PTA Risk

Based on 1231 resolved cases by this examiner. Grant probability derived from career allowance rate.