Last updated: July 17, 2026

Application No. 18/851,926

METHOD FOR PRODUCING OPTICAL FIBER

Non-Final OA

Filed

Sep 27, 2024

Priority

Mar 31, 2022 — JP 2022-058765 +1 more

Examiner

DAIGLER, CHRISTOPHER PAUL

Art Unit

1741

Tech Center

1700 — Chemical & Materials Engineering

Assignee

Sumitomo Electric Industries Ltd.

OA Round

1 (Non-Final)

Interview Optional

— +29.5% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 53% grant rate with +29.5% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 15 resolved cases, 2023–2026

Examiner Intelligence

DAIGLER, CHRISTOPHER PAUL View full profile →

Grants 53% of resolved cases

Career Allowance Rate

8 granted / 15 resolved

-11.7% vs TC avg

Strong +30% interview lift

Without

With

+29.5%

Interview Lift

resolved cases with interview

Typical timeline

2y 11m

Avg Prosecution

40 currently pending

Career history

Total Applications

across all art units

Statute-Specific Performance

§101

2.7%

-37.3% vs TC avg

§103

86.4%

+46.4% vs TC avg

§102

4.8%

-35.2% vs TC avg

§112

1.4%

-38.6% vs TC avg

Black line = Tech Center average estimate • Based on career data from 15 resolved cases

Prosecution Timeline

Sep 27, 2024

Application Filed

Mar 23, 2026

Examiner Interview (Telephonic)

Apr 01, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

17/778,430

Patent 12668546

Method for Improving Bs of MnZn Power Ferrite Material by Moving Valley Point

4y 1m to grant Granted Jun 30, 2026

18/301,020

Patent 12668533

APPARATUS AND METHOD TO FORM ULTRAFINE FEATURES ON GLASS

3y 2m to grant Granted Jun 30, 2026

18/365,093

Patent 12630456

METHOD OF MANUFACTURING SAPPHIRE COVER WINDOW AND SAPPHIRE COVER WINDOW MANUFACTURED THEREBY

2y 9m to grant Granted May 19, 2026

17/787,521

Patent 12617727

METHOD FOR PRODUCING ZIRCONIA SINTERED BODY

3y 10m to grant Granted May 05, 2026

Study what changed to get past this examiner. Based on 4 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

53%

Grant Probability

83%

With Interview (+29.5%)

2y 11m (~1y 1m remaining)

Median Time to Grant

Low

PTA Risk

Based on 15 resolved cases by this examiner. Grant probability derived from career allowance rate.