Last updated: July 17, 2026

Application No. 18/817,807

OPTICAL IMAGING SYSTEM COMPRISING FOUR LENSES OF --+-, +-+-, +++- OR -++- REFRACTIVE POWERS, IMAGE CAPTURING UNIT AND ELECTRONIC DEVICE

Non-Final OA

Filed

Aug 28, 2024

Priority

Mar 22, 2019 — TW 108109991 +3 more

Examiner

HUANG, WEN

Art Unit

Tech Center

Assignee

Largan Precision Co., Ltd.

OA Round

1 (Non-Final)

Interview Optional

— +23.4% interview lift. Examiner has a relatively high allowance rate (82%); +23.4% interview lift. A written response may suffice.

Based on 568 resolved cases, 2023–2026

Examiner Intelligence

HUANG, WEN View full profile →

Grants 82% — above average

Career Allowance Rate

464 granted / 568 resolved

+21.7% vs TC avg

Strong +23% interview lift

Without

With

+23.4%

Interview Lift

resolved cases with interview

Typical timeline

2y 9m

Avg Prosecution

35 currently pending

Career history

587

Total Applications

across all art units

Statute-Specific Performance

§103

74.5%

+34.5% vs TC avg

§102

21.2%

-18.8% vs TC avg

§112

3.5%

-36.5% vs TC avg

Black line = Tech Center average estimate • Based on career data from 568 resolved cases

Prosecution Timeline

Aug 28, 2024

Application Filed

Sep 12, 2024

Response after Non-Final Action

Jul 07, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

17/469,019

Patent 12681266

OPTICAL IMAGING SYSTEM

4y 10m to grant Granted Jul 14, 2026

17/907,668

Patent 12681305

HEAD-MOUNTED DISPLAY DEVICE

3y 4m to grant Granted Jul 14, 2026

18/089,913

Patent 12681272

LENS ASSEMBLY AND ELECTRONIC DEVICE INCLUDING THE SAME

3y 6m to grant Granted Jul 14, 2026

18/392,314

Patent 12674919

IMAGE-FORMING ELEMENT AND IMAGE DISPLAY DEVICE

2y 6m to grant Granted Jul 07, 2026

18/308,641

Patent 12663604

OPTICAL LENS ASSEMBLY

3y 1m 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.

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Prosecution Projections

1-2

Expected OA Rounds

82%

Grant Probability

99%

With Interview (+23.4%)

2y 9m (~10m remaining)

Median Time to Grant

Low

PTA Risk

Based on 568 resolved cases by this examiner. Grant probability derived from career allowance rate.