Last updated: July 17, 2026

Application No. 18/213,669

UTILIZING TRANSFORMER SECONDARY COIL FOR HARMONIC REJECTION FILTERING

Non-Final OA

Filed

Jun 23, 2023

Examiner

CHEN, ZHITONG

Art Unit

2837

Tech Center

2800 — Semiconductors & Electrical Systems

Assignee

Apple Inc.

OA Round

1 (Non-Final)

Interview Optional

— +20.1% interview lift. Examiner has a relatively high allowance rate (76%); +20.1% interview lift. A written response may suffice.

Based on 600 resolved cases, 2023–2026

Examiner Intelligence

CHEN, ZHITONG View full profile →

Grants 76% — above average

Career Allowance Rate

457 granted / 600 resolved

+8.2% vs TC avg

Strong +20% interview lift

Without

With

+20.1%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

44 currently pending

Career history

640

Total Applications

across all art units

Statute-Specific Performance

§101

0.2%

-39.8% vs TC avg

§103

97.8%

+57.8% vs TC avg

§102

1.0%

-39.0% vs TC avg

§112

0.5%

-39.5% vs TC avg

Black line = Tech Center average estimate • Based on career data from 600 resolved cases

Prosecution Timeline

Jun 23, 2023

Application Filed

May 26, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/112,822

Patent 12682596

EFFICIENT FLOW-GUIDED MULTI-FRAME DE-FENCING

3y 4m to grant Granted Jul 14, 2026

17/777,605

Patent 12675890

REAL-TIME SYSTEM FOR GENERATING 4D SPATIO-TEMPORAL MODEL OF A REAL WORLD ENVIRONMENT

4y 1m to grant Granted Jul 07, 2026

18/200,480

Patent 12676927

PHONE USER INTERFACE

3y 1m to grant Granted Jul 07, 2026

18/246,971

Patent 12671760

Window Display Method and Device

3y 3m to grant Granted Jun 30, 2026

18/621,844

Patent 12666265

USER APPROVAL OPTIONS TO ALLOW OR REJECT NEAR-FIELD ACCESS FOR TECHNICIAN TO CONNECT TO THE SYSTEM

2y 2m 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.

Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2

Expected OA Rounds

76%

Grant Probability

96%

With Interview (+20.1%)

2y 8m (~0m remaining)

Median Time to Grant

Low

PTA Risk

Based on 600 resolved cases by this examiner. Grant probability derived from career allowance rate.