Prosecution Insights
Last updated: October 25, 2026

THK Co., Ltd.

Technology areas: Transportation, E-Commerce & Mechanical Systems • Medical Devices & Mechanical Engineering

6 pending office actions • 5 art units • 6 examiners • 0 of 6 (0%) have an AI response strategy ready • 16 patents granted in the last 365 days

Analysis

THK Co., Ltd. has 6 pending office actions in Transportation, E-Commerce & Mechanical Systems. The matters involve 6 examiners across 5 art units, showing broad examiner distribution and a smaller amount of art-unit concentration.

PILKINGTON, JAMES is the busiest examiner with 1 pending matter. The profile favors individualized examiner preparation, with a parallel portfolio review to identify consistent positions on mechanical components and system relationships across the art-unit assignments.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

6
Total Pending OAs
2
Non-Final OAs
4
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 2 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

1
Overdue
1
Due this week
0
Due this month
0
Due in next 60 days
0
Due later

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.

4
Hard (67%)
1
Medium (17%)
1
Easy (17%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (17%)
§102 only1 (17%)
§112 only1 (17%)
Multi-statute (no §101)3 (50%)

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
1
Semiconductors
17% of docket
5
Mechanical / Eng
83% 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.

60 h
Manual time on pending OAs
12 h
Time saved (low, 20%)
21 h
Time saved (mid, 35%)
0.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
PILKINGTON, JAMES 1 70.2% +35.7%
STERLING, AMY JO 1 76.7% +10.5%
BESLER, CHRISTOPHER JAMES 1 68.6% +41.0%
TIGHE, BRENDAN P 1 76.2% +19.4%
COOK, KYLE A 1 62.0% +39.7%
DAVIS, CYNTHIA L 1 71.4% +30.2%

Hard Cases (4)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 4 ordered by deadline are shown.

App #TitleExaminerDue in
18708670 MONITORING SYSTEM THAT MONITORS MOTION GUIDING DEVICE DAVIS, CYNTHIA L 6d
18855491 MOUNTING HOLE CAP AND MOTION GUIDE APPARATUS STERLING, AMY JO —
18841555 JIG FOR ASSISTING ATTACHMENT OF RAIL COVER BESLER, CHRISTOPHER JAMES —
18837390 ACTUATOR AND MAGNETIC POLE POSITION ESTIMATION METHOD TIGHE, BRENDAN P —

Interview Candidates (6)

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 6 ordered by deadline are shown.

App #TitleExaminerDue in
18718615 FEED MECHANISM AND METHOD FOR MANUFACTURING SAME COOK, KYLE A 161d overdue
18708670 MONITORING SYSTEM THAT MONITORS MOTION GUIDING DEVICE DAVIS, CYNTHIA L 6d
18881493 MOTION GUIDE APPARATUS PILKINGTON, JAMES —
18855491 MOUNTING HOLE CAP AND MOTION GUIDE APPARATUS STERLING, AMY JO —
18841555 JIG FOR ASSISTING ATTACHMENT OF RAIL COVER BESLER, CHRISTOPHER JAMES —
18837390 ACTUATOR AND MAGNETIC POLE POSITION ESTIMATION METHOD TIGHE, BRENDAN P —

Top Art Units

Art UnitApps
3726 2
3617 1
3631 1
3652 1
2857 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18881493 MOTION GUIDE APPARATUS PILKINGTON, JAMES 3617 §112 Final Rejection — Pending Jan 06, 2025
18855491 MOUNTING HOLE CAP AND MOTION GUIDE APPARATUS STERLING, AMY JO 3631 §102§103 Non-Final OA — Pending Oct 09, 2024
18841555 JIG FOR ASSISTING ATTACHMENT OF RAIL COVER BESLER, CHRISTOPHER JAMES 3726 §103§112 Final Rejection — Pending Aug 26, 2024
18837390 ACTUATOR AND MAGNETIC POLE POSITION ESTIMATION METHOD TIGHE, BRENDAN P 3652 §102§103 Final Rejection — Pending Aug 09, 2024
18718615 FEED MECHANISM AND METHOD FOR MANUFACTURING SAME COOK, KYLE A 3726 §102 Non-Final OA 161d overdue Pending Jun 11, 2024
18708670 MONITORING SYSTEM THAT MONITORS MOTION GUIDING DEVICE DAVIS, CYNTHIA L 2857 §101§103 Final Rejection 6d Pending May 09, 2024

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Frequently Asked Questions

How many pending USPTO office actions does THK Co., Ltd. have?

THK Co., Ltd. has 6 pending office actions as of October 2026, spread across 5 art units and 6 examiners.

Which USPTO examiner handles the most THK Co., Ltd. applications?

James Pilkington has the most, with 1 of THK Co., Ltd.'s pending office actions.

What technology area are THK Co., Ltd.'s patent applications in?

Mostly Transportation, E-Commerce & Mechanical Systems (USPTO Tech Center 3600), based on where its pending office actions are examined.

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