Last updated: May 29, 2026

Application No. 17/447,948

CARRIER WAFER WITH MULTIPLE ANTIREFLECTIVE COATING LAYERS

Non-Final OA

Filed

Sep 17, 2021

Examiner

HATFIELD, MARSHALL MU-NUO

Art Unit

2897

Tech Center

2800 — Semiconductors & Electrical Systems

Assignee

International Business Machines Corporation

OA Round

4 (Non-Final)

Interview Optional

— +3.5% interview lift. Interview already conducted in this application's prosecution history. This examiner has a 95% grant rate with +3.5% interview lift. Since an interview has already been tried, recommend written response with narrowed claims based on precedent claim evolution patterns.

Based on 78 resolved cases, 2023–2026

Examiner Intelligence

HATFIELD, MARSHALL MU-NUO View full profile →

Grants 95% — above average

Career Allowance Rate

74 granted / 78 resolved

+26.9% vs TC avg

Minimal +4% lift

Without

With

+3.5%

Interview Lift

resolved cases with interview

Typical timeline

3y 3m

Avg Prosecution

10 currently pending

Career history

103

Total Applications

across all art units

Statute-Specific Performance

§103

84.7%

+44.7% vs TC avg

§102

13.1%

-26.9% vs TC avg

§112

1.1%

-38.9% vs TC avg

Black line = Tech Center average estimate • Based on career data from 78 resolved cases

Prosecution Timeline

Show 15 earlier events

Feb 19, 2025

Non-Final Rejection mailed

May 01, 2025

Interview Requested

May 14, 2025

Response Filed

Aug 18, 2025

Final Rejection mailed

Aug 27, 2025

Interview Requested

Sep 09, 2025

Applicant Interview (Telephonic)

Sep 11, 2025

Examiner Interview Summary

Sep 15, 2025

Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

18/041,466

Patent 12641917

SENSOR MODULE

3y 3m to grant Granted May 26, 2026

17/548,426

Patent 12635221

HIGH-VOLTAGE DEPLETION-MODE CURRENT SOURCE, TRANSISTOR, AND FABRICATION METHODS

4y 5m to grant Granted May 19, 2026

17/644,937

Patent 12635506

MICROELECTRONIC DEVICES INCLUDING STAIR STEP STRUCTURES, AND RELATED ELECTRONIC SYSTEMS AND METHODS

4y 5m to grant Granted May 19, 2026

18/296,531

Patent 12622065

ELECTROSTATIC DISCHARGE PROTECTION DEVICE

3y 1m to grant Granted May 05, 2026

17/777,811

Patent 12598778

SEMICONDUCTOR DEVICE, METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE, AND ELECTRONIC APPARATUS INCLUDING THE SEMICONDUCTOR DEVICE

3y 10m to grant Granted Apr 07, 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

4-5

Expected OA Rounds

95%

Grant Probability

98%

With Interview (+3.5%)

3y 3m (~0m remaining)

Median Time to Grant

High

PTA Risk

Based on 78 resolved cases by this examiner. Grant probability derived from career allowance rate.