Last updated: October 04, 2026

Application No. 17/760,890

Construction Machine

Final Rejection

Filed

Mar 16, 2022

Priority

Sep 25, 2019 — JP 2019-174640 +1 more

Examiner

QUANDT, MICHAEL M

Art Unit

3745

Tech Center

3700 — Mechanical Engineering & Manufacturing

Assignee

Hitachi Construction Machinery Tierra Co. Ltd.

OA Round

4 (Final)

This examiner grants 63% of cases after interview

— +19.3% interview lift. A telephonic interview to clarify the technical implementation could significantly improve the outcome.

Based on 497 resolved cases, 2023–2026

Examiner Intelligence

QUANDT, MICHAEL M View full profile →

Grants 63% of resolved cases

Career Allowance Rate

312 granted / 497 resolved

-7.2% vs TC avg

Strong +19% interview lift

Without

With

+19.3%

Interview Lift

resolved cases with interview

Typical timeline

3y 1m

Avg Prosecution

13 currently pending

Career history

537

Total Applications

across all art units

Statute-Specific Performance

§101

0.5%

-39.5% vs TC avg

§103

37.6%

-2.4% vs TC avg

§102

19.4%

-20.6% vs TC avg

§112

41.0%

+1.0% vs TC avg

Black line = Tech Center average estimate • Based on career data from 497 resolved cases

Prosecution Timeline

Show 1 earlier event

Mar 14, 2024

Non-Final Rejection mailed

Jun 12, 2024

Response Filed

Sep 25, 2024

Final Rejection mailed

Dec 24, 2024

Request for Continued Examination

Dec 30, 2024

Response after Non-Final Action

Dec 31, 2025

Non-Final Rejection mailed

Apr 30, 2026

Response Filed

Sep 01, 2026

Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

17/296,889

Patent 12723604

SWITCHING UNIT AND PNEUMATIC SYSTEM

5y 3m to grant Granted Sep 01, 2026

16/028,681

Patent 12716516

VARIABLE DITHER CONTROL SYSTEM FOR A FLUID ACTUATOR

8y 1m to grant Granted Aug 25, 2026

17/785,380

Patent 12716489

IMPROVED OPEN HYDRAULIC ASSISTANCE SYSTEM

4y 2m to grant Granted Aug 25, 2026

17/374,358

Patent 12704118

INLINE PISTON PUMP

5y 1m to grant Granted Aug 11, 2026

17/660,719

Patent 12702097

SYSTEM FOR PROVIDING ROTARY POWER TO IMPLEMENTS OF MACHINES

4y 3m to grant Granted Aug 11, 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

5-6

Expected OA Rounds

63%

Grant Probability

82%

With Interview (+19.3%)

3y 1m (~0m remaining)

Median Time to Grant

High

PTA Risk

Based on 497 resolved cases by this examiner. Grant probability derived from career allowance rate.