Prosecution Insights
Last updated: July 05, 2026
Application No. 18/598,347

Rail Vehicle

Non-Final OA
Filed
Mar 07, 2024
Priority
Mar 08, 2023 — JP 2023-035351
Examiner
MCCARRY JR, ROBERT J
Art Unit
Tech Center
Assignee
Hitachi Ltd.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allowance Rate
1255 granted / 1531 resolved
+22.0% vs TC avg
Strong +17% interview lift
Without
With
+16.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
30 currently pending
Career history
1555
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
51.1%
+11.1% vs TC avg
§102
39.0%
-1.0% vs TC avg
§112
4.4%
-35.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1531 resolved cases

Prosecution Timeline

Mar 07, 2024
Application Filed
May 28, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12662777
RAIL TIE HANDLING SYSTEM AND METHOD
3y 6m to grant Granted Jun 23, 2026
Patent 12661596
TROLLEY LAUNCHER SYSTEM FOR ZIPLINES
2y 12m to grant Granted Jun 23, 2026
Patent 12649964
WELDED RAIL
3y 4m to grant Granted Jun 09, 2026
Patent 12649500
High Speed Suspended Transit System and Related Methods
3y 0m to grant Granted Jun 09, 2026
Patent 12643581
COUPLER KNUCKLE INTERNAL PIVOT PIN SUPPORT
3y 4m to grant Granted Jun 02, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
82%
Grant Probability
99%
With Interview (+16.6%)
2y 9m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1531 resolved cases by this examiner. Grant probability derived from career allowance rate.

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