Last updated: July 17, 2026

Application No. 18/993,528

SIMILARITY CALCULATION DEVICE, SIMILARITY CALCULATION METHOD AND SIMILARITY CALCULATION PROGRAM

Non-Final OA

Filed

Jan 11, 2025

Priority

Jul 13, 2022 — nonprovisional of PCTJP2022027612

Examiner

KATSIKIS, KOSTAS J

Art Unit

2441

Tech Center

2400 — Computer Networks

Assignee

Nippon Telegraph and Telephone Corporation

OA Round

1 (Non-Final)

Interview Optional

— +28.9% interview lift. Examiner has a relatively high allowance rate (81%); +28.9% interview lift. A written response may suffice.

Based on 764 resolved cases, 2023–2026

Examiner Intelligence

KATSIKIS, KOSTAS J View full profile →

Grants 81% — above average

Career Allowance Rate

619 granted / 764 resolved

+23.0% vs TC avg

Strong +29% interview lift

Without

With

+28.9%

Interview Lift

resolved cases with interview

Typical timeline

2y 8m

Avg Prosecution

8 currently pending

Career history

773

Total Applications

across all art units

Statute-Specific Performance

§101

5.1%

-34.9% vs TC avg

§103

62.3%

+22.3% vs TC avg

§102

12.1%

-27.9% vs TC avg

§112

6.4%

-33.6% vs TC avg

Black line = Tech Center average estimate • Based on career data from 764 resolved cases

Prosecution Timeline

Jan 11, 2025

Application Filed

Apr 27, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12683916

SUPPORTING REAL NUMBER CALCULATIONS IN PHYSICAL SWITCHES

2y 0m to grant Granted Jul 14, 2026

18/425,589

Patent 12677147

Dynamic Reserve WLAN Based on Authentication Availability

2y 5m to grant Granted Jul 07, 2026

18/780,823

Patent 12659323

Multi-Computer System for Comprehensive Threat Detection and Mitigation

1y 10m to grant Granted Jun 16, 2026

18/507,424

Patent 12652286

Systems and methods for directing and enforcing zero trust control on requests to destination services

2y 6m to grant Granted Jun 09, 2026

18/194,497

Patent 12646067

THREAT IDENTIFICATION AND MITIGATION SYSTEM USING MACHINE LEARNING

3y 2m 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

81%

Grant Probability

99%

With Interview (+28.9%)

2y 8m (~1y 2m remaining)

Median Time to Grant

Low

PTA Risk

Based on 764 resolved cases by this examiner. Grant probability derived from career allowance rate.