Last updated: July 11, 2026

Application No. 19/151,310

Untitled Application

Unknown

Filed

Priority

Feb 15, 2023 — provisional 63/445,986 +1 more

Examiner

DUONG, THO V

Art Unit

Tech Center

Hitachi Energy Ltd

Assignee

Hitachi Energy Ltd.

OA Round

1 (Non-Final)

Interview Optional

— +17.2% interview lift. Examiner has a relatively high allowance rate (67%); +17.2% interview lift. A written response may suffice.

Based on 1208 resolved cases, 2023–2026

Examiner Intelligence

DUONG, THO V View full profile →

Grants 67% — above average

Career Allowance Rate

810 granted / 1208 resolved

+7.1% vs TC avg

Strong +17% interview lift

Without

With

+17.2%

Interview Lift

resolved cases with interview

Typical timeline

3y 3m

Avg Prosecution

32 currently pending

Career history

1239

Total Applications

across all art units

Statute-Specific Performance

§103

73.3%

+33.3% vs TC avg

§102

15.8%

-24.2% vs TC avg

§112

9.8%

-30.2% vs TC avg

Black line = Tech Center average estimate • Based on career data from 1208 resolved cases

Prosecution Timeline

May 11, 2026

Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

18/026,591

Patent 12669295

HEAT EXCHANGE TUBE ASSEMBLY, FABRICATION METHOD THEREOF AND REFRIGERATOR

3y 3m to grant Granted Jun 30, 2026

18/842,937

Patent 12669251

HEAT EXCHANGER, HEAT EXCHANGE UNIT, AND AIR CONDITIONER

1y 10m to grant Granted Jun 30, 2026

18/708,688

Patent 12656069

INTEGRATED PLATE-TYPE HEAT EXCHANGER

2y 1m to grant Granted Jun 16, 2026

18/416,623

Patent 12650269

PULSATING VAPOR CHAMBER

2y 4m to grant Granted Jun 09, 2026

18/721,278

Patent 12650273

HEAT EXCHANGER

1y 11m to grant Granted Jun 09, 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

67%

Grant Probability

84%

With Interview (+17.2%)

3y 3m

Median Time to Grant

Low

PTA Risk

Based on 1208 resolved cases by this examiner. Grant probability derived from career allowance rate.