Last updated: July 17, 2026

Application No. 18/252,453

PROPYLENE PLANT REVAMPING PROCESS

Non-Final OA

Filed

May 10, 2023

Priority

Nov 25, 2020 — EU 20209879.4 +1 more

Examiner

YOUNG, NATASHA E

Art Unit

1774

Tech Center

1700 — Chemical & Materials Engineering

Assignee

Borealis AG

OA Round

1 (Non-Final)

Interview Optional

— +9.1% interview lift. Interview lift (+9.1%) is below the 15.0% threshold. A written response is recommended.

Based on 1079 resolved cases, 2023–2026

Examiner Intelligence

YOUNG, NATASHA E View full profile →

Grants 83% — above average

Career Allowance Rate

896 granted / 1079 resolved

+18.0% vs TC avg

Moderate +9% lift

Without

With

+9.1%

Interview Lift

resolved cases with interview

Typical timeline

2y 6m

Avg Prosecution

24 currently pending

Career history

1106

Total Applications

across all art units

Statute-Specific Performance

§101

1.4%

-38.6% vs TC avg

§103

68.6%

+28.6% vs TC avg

§102

6.9%

-33.1% vs TC avg

§112

15.5%

-24.5% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1079 resolved cases

Prosecution Timeline

May 10, 2023

Application Filed

Jun 05, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

17/769,388

Patent 12678759

Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials

4y 3m to grant Granted Jul 14, 2026

18/031,352

Patent 12678736

APPARATUS FOR REDUCING GREENHOUSE GAS EMISSION IN VESSEL AND VESSEL INCLUDING THE SAME

3y 3m to grant Granted Jul 14, 2026

17/796,197

Patent 12655080

PROCESS AND REACTION SYSTEM FOR THE PREPARATION OF METHANOL

3y 10m to grant Granted Jun 16, 2026

17/717,786

Patent 12643788

REACTOR FOR ON-DEMAND HIGH PRESSURE HYDROGEN

4y 1m to grant Granted Jun 02, 2026

17/718,404

Patent 12642879

METHOD AND SYSTEM OF CONTROLLING A COHORT OF OZONE GAS GENERATING DEVICES

4y 1m to grant Granted Jun 02, 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

83%

Grant Probability

92%

With Interview (+9.1%)

2y 6m (~0m remaining)

Median Time to Grant

Low

PTA Risk

Based on 1079 resolved cases by this examiner. Grant probability derived from career allowance rate.