Prosecution Insights
Last updated: May 29, 2026

Hitachi Construction Machinery Co. Ltd.

12 pending office actions • 9 art units • 11 examiners • 0 of 12 (0%) have an AI response strategy ready • 90 patents granted in the last 365 days

Portfolio Summary

12
Total Pending OAs
8
Non-Final OAs
4
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 12 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

6
Overdue
0
Due this week
4
Due this month
2
Due in next 60 days
0
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 12 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (6)Due ≤ 30 days (4)Due ≤ 60 days (2)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

2
Hard (17%)
9
Medium (75%)
1
Easy (8%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 only2 (17%)
§103 only8 (67%)
§102 only1 (8%)
§112 only1 (8%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

0
Life Sciences
0% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
12
Mechanical / Eng
100% of docket
0
Business / Other
0% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

120 h
Manual time on pending OAs
24 h
Time saved (low, 20%)
42 h
Time saved (mid, 35%)
1.1 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
HINTON, HENRY R 2 76.6% +31.4%
WEBB, TIFFANY L 1 92.0% +7.1%
COLLINS, DANIEL S. 1 84.9% +9.4%
REIDY, SEAN PATRICK 1 36.3% +37.4%
MAWARI, REDHWAN K 1 72.3% +26.6%
MEYER, JACOB B 1 74.5% +17.2%
LOWE, MICHAEL S 1 66.5% +20.3%
WHITE, DYLAN C 1 77.4% +12.1%
SANTOS-DIAZ, MARIA C 1 33.4% +31.3%
LEVY, MERRITT E 1 33.7% +34.6%

Quick Wins (2)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
19110931 DUMP TRUCK WEBB, TIFFANY L 19d overdue
19110147 Control System of Work Machine COLLINS, DANIEL S. 29d

Hard Cases (2)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18279452 COMPONENT ADVANCE DEPLOYMENT ASSISTANCE SYSTEM AND METHOD SANTOS-DIAZ, MARIA C 24d overdue
18685932 MINE MANAGEMENT SYSTEM WHITE, DYLAN C 46d

Interview Candidates (9)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
17909550 WORKING MACHINE HINTON, HENRY R 98d overdue
18687853 WORK VEHICLE LOWE, MICHAEL S 60d overdue
18279452 COMPONENT ADVANCE DEPLOYMENT ASSISTANCE SYSTEM AND METHOD SANTOS-DIAZ, MARIA C 24d overdue
18687887 Wheel Loader HINTON, HENRY R 23d overdue
18279442 WORK MACHINE CONTROL SYSTEM LEVY, MERRITT E 12d
18971553 Work Machine Capable of Calculating Loaded Amount for Hauling Machine REIDY, SEAN PATRICK 26d
18853574 WORK MACHINE MAWARI, REDHWAN K 26d
18695910 Traveling Device for Wheeled Vehicle MEYER, JACOB B 35d

Top Art Units

Art UnitApps
3745 2
3663 2
3665 2
3614 1
3664 1
3613 1
3652 1
3625 1
3629 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19110931 DUMP TRUCK WEBB, TIFFANY L 3614 §102 Non-Final OA 19d overdue Pending Mar 12, 2025
19110147 Control System of Work Machine COLLINS, DANIEL S. 3745 §103 Non-Final OA 29d Pending Mar 10, 2025
18971553 Work Machine Capable of Calculating Loaded Amount for Hauling Machine REIDY, SEAN PATRICK 3663 §103 Non-Final OA 26d Pending Dec 06, 2024
18853574 WORK MACHINE MAWARI, REDHWAN K 3664 §103 Non-Final OA 26d Pending Oct 02, 2024
18695910 Traveling Device for Wheeled Vehicle MEYER, JACOB B 3613 §112 Non-Final OA 35d Pending Mar 27, 2024
18687887 Wheel Loader HINTON, HENRY R 3665 §103 Final Rejection 23d overdue Pending Feb 29, 2024
18687853 WORK VEHICLE LOWE, MICHAEL S 3652 §103 Non-Final OA 60d overdue Pending Feb 29, 2024
18685932 MINE MANAGEMENT SYSTEM WHITE, DYLAN C 3625 §101 Final Rejection 46d Pending Feb 23, 2024
18279452 COMPONENT ADVANCE DEPLOYMENT ASSISTANCE SYSTEM AND METHOD SANTOS-DIAZ, MARIA C 3629 §101 Final Rejection 24d overdue Pending Aug 30, 2023
18279442 WORK MACHINE CONTROL SYSTEM LEVY, MERRITT E 3663 §103 Non-Final OA 12d Pending Aug 30, 2023
18027956 WELDING MEASURING SYSTEM AND WELDING MEASURING METHOD WONG, ELTON K 3745 §103 Non-Final OA 36d overdue Pending Mar 23, 2023
17909550 WORKING MACHINE HINTON, HENRY R 3665 §103 Final Rejection 98d overdue Pending Sep 06, 2022

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