Prosecution Insights
Last updated: October 25, 2026

Tsann Kuen (Zhangzhou) Enterprise Co., Ltd.

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

5 pending office actions • 4 art units • 5 examiners • 0 of 5 (0%) have an AI response strategy ready • 6 patents granted in the last 365 days

Analysis

Tsann Kuen (Zhangzhou) Enterprise Co., Ltd. has 5 pending office actions in Medical Devices & Mechanical Engineering. The matters involve 5 distinct examiners across 4 distinct art units, showing broad examiner assignment with some art-unit overlap.

NGUYEN, UYEN T is the busiest examiner, with 1 pending matter. The portfolio therefore offers little basis for an examiner-centered strategy. Counsel should coordinate technical terminology and disclosure across cases while reviewing each art unit for its own claim construction and prior-art concerns. The figures describe assignment structure only and do not indicate the relative difficulty or stage of any matter.

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

Portfolio Summary

5
Total Pending OAs
4
Non-Final OAs
1
Final Rejections
0
Advisory / Quayle

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 (80%)
1
Medium (20%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§102 only1 (20%)
Multi-statute (no §101)4 (80%)

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
3
Mechanical / Eng
60% of docket
2
Business / Other
40% 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.

50 h
Manual time on pending OAs
10 h
Time saved (low, 20%)
18 h
Time saved (mid, 35%)
0.4 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
NGUYEN, UYEN T 1 40.3% +37.1%
BALANSAG, JADE DOMINIQ TORRES 1 — —
DANGOL, ASHESH 1 69.6% +51.5%
KASZTEJNA, MATTHEW JOHN 1 64.5% +13.1%
CHAMBERS, JOHN MICHAEL 1 0.0% +0.0%

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
18639163 AIR FRYER BALANSAG, JADE DOMINIQ TORRES —
18607493 DEMOULDING DEVICE AND COOKING DEVICE DANGOL, ASHESH —
18424035 COFFEE MACHINE AND WATER PATH CONTROL SYSTEM THEREFOR KASZTEJNA, MATTHEW JOHN —
18417332 HEIGHT-ADJUSTABLE BAKING DEVICE CHAMBERS, JOHN MICHAEL —

Interview Candidates (3)

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 3 ordered by deadline are shown.

App #TitleExaminerDue in
19190960 DOUBLE-LAYER ELECTRIC HEATING PLATE AND STEAM BRUSH NGUYEN, UYEN T —
18607493 DEMOULDING DEVICE AND COOKING DEVICE DANGOL, ASHESH —
18424035 COFFEE MACHINE AND WATER PATH CONTROL SYSTEM THEREFOR KASZTEJNA, MATTHEW JOHN —

Top Art Units

Art UnitApps
3732 1
3642 1
3993 1
3761 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19190960 DOUBLE-LAYER ELECTRIC HEATING PLATE AND STEAM BRUSH NGUYEN, UYEN T 3732 §102 Non-Final OA — Pending Apr 28, 2025
18639163 AIR FRYER BALANSAG, JADE DOMINIQ TORRES — §102§103§112 Non-Final OA — Pending Apr 18, 2024
18607493 DEMOULDING DEVICE AND COOKING DEVICE DANGOL, ASHESH 3642 §102§103 Non-Final OA — Pending Mar 17, 2024
18424035 COFFEE MACHINE AND WATER PATH CONTROL SYSTEM THEREFOR KASZTEJNA, MATTHEW JOHN 3993 §103§112 Final Rejection — Pending Jan 26, 2024
18417332 HEIGHT-ADJUSTABLE BAKING DEVICE CHAMBERS, JOHN MICHAEL 3761 §102§103§112 Non-Final OA — Pending Jan 19, 2024

Managing Tsann Kuen (Zhangzhou) Enterprise Co., Ltd.'s Patent Portfolio?

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Frequently Asked Questions

How many pending USPTO office actions does Tsann Kuen (Zhangzhou) Enterprise Co., Ltd. have?

Tsann Kuen (Zhangzhou) Enterprise Co., Ltd. has 5 pending office actions as of October 2026, spread across 4 art units and 5 examiners.

Which USPTO examiner handles the most Tsann Kuen (Zhangzhou) Enterprise Co., Ltd. applications?

Uyen T Nguyen has the most, with 1 of Tsann Kuen (Zhangzhou) Enterprise Co., Ltd.'s pending office actions.

What technology area are Tsann Kuen (Zhangzhou) Enterprise Co., Ltd.'s patent applications in?

Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.

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