Last updated: July 17, 2026

Application No. 17/789,113

METHOD FOR MANUFACTURING 1,3-BUTYLENE GLYCOL, AND 1,3-BUTYLENE GLYCOL PRODUCT

Final Rejection

Filed

Jun 24, 2022

Priority

Dec 28, 2019 — JP 2019-239974 +8 more

Examiner

KIFLE, BRUCK

Art Unit

1626

Tech Center

1600 — Biotechnology & Organic Chemistry

Assignee

Daicel Corporation

OA Round

2 (Final)

Interview Optional

— +15.9% interview lift. Examiner has a relatively high allowance rate (79%); +15.9% interview lift. A written response may suffice.

Based on 1729 resolved cases, 2023–2026

Examiner Intelligence

KIFLE, BRUCK View full profile →

Grants 79% — above average

Career Allowance Rate

1369 granted / 1729 resolved

+19.2% vs TC avg

Strong +16% interview lift

Without

With

+15.9%

Interview Lift

resolved cases with interview

Fast prosecutor

1y 10m

Avg Prosecution

36 currently pending

Career history

1749

Total Applications

across all art units

Statute-Specific Performance

§101

3.7%

-36.3% vs TC avg

§103

17.1%

-22.9% vs TC avg

§102

9.9%

-30.1% vs TC avg

§112

50.5%

+10.5% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1729 resolved cases

Prosecution Timeline

Jun 24, 2022

Application Filed

Jul 15, 2025

Non-Final Rejection mailed

Oct 15, 2025

Response Filed

Jun 02, 2026

Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/291,846

Patent 12678505

LEAKAGE INHIBITING AGENT FOR LOCAL INJECTION PREPARATION, LOCAL INJECTION PREPARATION INCLUDING THE SAME, AND METHOD FOR PRODUCING LOCAL INJECTION PREPARATION

2y 5m to grant Granted Jul 14, 2026

17/801,757

Patent 12673945

3-((8-((1H-PYRAZOL-4-YL)AMINO)IMIDAZO[1,2-A]PYRIDIN-3-YL)ETHINYL)-N-PHENYLBENZAMIDE DERIVATIVE, METHOD FOR PREPARING SAME, AND PHARMACEUTICAL COMPOSITION CONTAINING SAME AS ACTIVE INGREDIENT FOR PREVENTION OR TREATMENT OF CANCER

3y 10m to grant Granted Jul 07, 2026

18/328,400

Patent 12667834

BIMETALLIC NANOALLOY COMPOSITE

3y 0m to grant Granted Jun 30, 2026

17/920,969

Patent 12661358

PURINE DERIVATIVES AS DRUGS FOR THE TREATMENT OF NEONATAL HYPOXIA-ISCHEMIA BRAIN INJURY AND RELATED DISEASES

3y 8m to grant Granted Jun 23, 2026

17/759,264

Patent 12655088

COMPOUND FOR TREATING ALZHEIMERS DISEASE

3y 11m to grant Granted Jun 16, 2026

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

Strategy Recommendation AI-generated — please review before filing

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Prosecution Projections

3-4

Expected OA Rounds

79%

Grant Probability

95%

With Interview (+15.9%)

1y 10m (~0m remaining)

Median Time to Grant

Moderate

PTA Risk

Based on 1729 resolved cases by this examiner. Grant probability derived from career allowance rate.