Prosecution Insights
Last updated: October 04, 2026

Tsmc China Company Limited

Technology area: Semiconductors, Circuits & Optics

17 pending office actions • 10 art units • 16 examiners • 0 of 17 (0%) have an AI response strategy ready • 19 patents granted in the last 365 days

Portfolio Summary

17
Total Pending OAs
15
Non-Final OAs
2
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

1
Overdue
0
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.

6
Hard (35%)
7
Medium (41%)
3
Easy (18%)
1
Unknown (6%)

Rejection Statute Mix

BucketCases
§103 only4 (24%)
§102 only3 (18%)
§112 only1 (6%)
Double-patenting only2 (12%)
Multi-statute (no §101)6 (35%)
No statute on record1 (6%)

Industry Mix

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

2
Life Sciences
12% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
8
Semiconductors
47% of docket
1
Mechanical / Eng
6% of docket
6
Business / Other
35% 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.

170 h
Manual time on pending OAs
34 h
Time saved (low, 20%)
59 h
Time saved (mid, 35%)
1.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
CHO, SUNG IL 2 91.4% +8.5%
TRA, ANH QUAN 1 72.9% +5.3%
COMBER, KEVIN J 1 82.6% +11.8%
HO, HOAI V 1 92.7% +5.5%
YANG, HAN 1 92.0% +11.8%
ABEL, GARY ROBERT 1 87.5% +11.0%
ASSOUMAN, HERVE-LOUIS Y 1 91.4% +4.1%
GHEYAS, SYED I 1 82.5% +3.9%
ZHU, SHENG-BAI 1 62.3% +6.0%
LEE, DOUGLAS 1 45.3% +13.7%

Quick Wins (4)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 4 ordered by deadline are shown.

App #TitleExaminerDue in
18984571 SIGNAL GENERATOR FOR CONTROLLING TIMING OF SIGNAL IN MEMORY DEVICE HO, HOAI V —
18973630 TIMING CONTROL CIRCUIT OF MEMORY DEVICE WITH TRACKING WORD LINE AND TRACKING BIT LINE CHO, SUNG IL —
18949858 MEMORY DEVICE YANG, HAN —
18769165 INTEGRATED CIRCUIT DEVICE ASSOUMAN, HERVE-LOUIS Y —

Hard Cases (6)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 6 ordered by deadline are shown.

App #TitleExaminerDue in
19009439 ELECTROSTATIC DISCHARGE (ESD) PROTECTION CIRCUIT AND METHOD OF OPERATING THE SAME COMBER, KEVIN J —
18973508 TIMING CONTROL CIRCUIT OF MEMORY DEVICE WITH TRACKING WORD LINE AND TRACKING BIT LINE CHO, SUNG IL —
18789471 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF ABEL, GARY ROBERT —
18657385 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF GHEYAS, SYED I —
18435511 INTEGRATED CIRCUIT AND METHOD FOR FORMING THE SAME WIEGAND, TYLER J —
18459165 SYSTEM AND METHOD FOR WAFER WET PROCESS CARRILLO, BIBI SHARIDAN —

Interview Candidates (4)

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 4 ordered by deadline are shown.

App #TitleExaminerDue in
19009439 ELECTROSTATIC DISCHARGE (ESD) PROTECTION CIRCUIT AND METHOD OF OPERATING THE SAME COMBER, KEVIN J —
18949858 MEMORY DEVICE YANG, HAN —
18789471 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF ABEL, GARY ROBERT —
18582100 POSITION DETECTION SYSTEM AND OPERATING METHOD THEREOF LEE, DOUGLAS —

Top Art Units

Art UnitApps
2812 2
2843 1
2838 1
2893 1
2897 1
1714 1
2817 1
3762 1
1711 1
2818 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19012386 CIRCUIT AND METHOD OF OPERATING THE SAME TRA, ANH QUAN 2843 Other Final Rejection — Pending Jan 07, 2025
19009439 ELECTROSTATIC DISCHARGE (ESD) PROTECTION CIRCUIT AND METHOD OF OPERATING THE SAME COMBER, KEVIN J 2838 §102§103 Non-Final OA — Pending Jan 03, 2025
18984571 SIGNAL GENERATOR FOR CONTROLLING TIMING OF SIGNAL IN MEMORY DEVICE HO, HOAI V — DP Non-Final OA — Pending Dec 17, 2024
18973508 TIMING CONTROL CIRCUIT OF MEMORY DEVICE WITH TRACKING WORD LINE AND TRACKING BIT LINE CHO, SUNG IL — §103§112Other Non-Final OA — Pending Dec 09, 2024
18973630 TIMING CONTROL CIRCUIT OF MEMORY DEVICE WITH TRACKING WORD LINE AND TRACKING BIT LINE CHO, SUNG IL — §103Other Non-Final OA — Pending Dec 09, 2024
18949858 MEMORY DEVICE YANG, HAN — §102 Non-Final OA — Pending Nov 15, 2024
18789471 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF ABEL, GARY ROBERT — §102§103 Non-Final OA — Pending Jul 30, 2024
18769165 INTEGRATED CIRCUIT DEVICE ASSOUMAN, HERVE-LOUIS Y — §102Other Non-Final OA — Pending Jul 10, 2024
18657385 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF GHEYAS, SYED I 2893 §102§112Other Non-Final OA — Pending May 07, 2024
18595016 LATERAL DIFFUSED SEMICONDUCTOR DEVICE AND FORMING METHOD THEREOF ZHU, SHENG-BAI 2897 §103 Final Rejection — Pending Mar 04, 2024
18582100 POSITION DETECTION SYSTEM AND OPERATING METHOD THEREOF LEE, DOUGLAS 1714 §102 Non-Final OA — Pending Feb 20, 2024
18435511 INTEGRATED CIRCUIT AND METHOD FOR FORMING THE SAME WIEGAND, TYLER J 2812 §102§112 Non-Final OA — Pending Feb 07, 2024
18505257 LATERAL DIFFUSION METAL OXIDE SEMICONDUCTOR (LDMOS) TRANSISTOR AND METHOD OF MAKING TRAN, THANH Y 2817 DP Non-Final OA — Pending Nov 09, 2023
18479106 DRYER TOOL AND OPERATION METHOD THEREOF WAN, DEMING 3762 §112 Non-Final OA — Pending Oct 01, 2023
18459165 SYSTEM AND METHOD FOR WAFER WET PROCESS CARRILLO, BIBI SHARIDAN 1711 §103§112 Non-Final OA — Pending Aug 31, 2023
18447737 METHOD OF MAKING SEMICONDUCTOR DEVICE HAVING BURIED BIAS PAD MICHAUD, NICHOLAS BRIAN 2818 §103 Non-Final OA 16d overdue Pending Aug 10, 2023
17694088 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF OZDEN, ILKER NMN 2812 §103Other Non-Final OA — Pending Mar 14, 2022

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