Prosecution Insights
Last updated: October 02, 2026

Examiner: LIU, MIKKA H

Tech Center 4100 • Art Units: 2815 2817 2895 4100

This examiner grants 92% of resolved cases

Analysis

Mikka H Liu examines cases in Tech Center 4100 and Art Unit 2815. With 613 resolved cases, the allowance rate is exceptionally high at 92.2 percent. The median days to allowance is 798, indicating that the prosecution process is both successful and efficient. This combination of metrics suggests a very favorable environment for applicants seeking patent protection within this specific art unit.

The interview lift is 3.8 percent. Although the 92.2 percent baseline leaves little room for statistical improvement, the positive lift indicates that interviews are a safe and potentially helpful way to move a case toward allowance. Practitioners can use interviews to clarify minor technical points or claim language, ensuring that the 798-day prosecution timeline remains efficient and leads to a successful grant.

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

Performance Statistics

92.2%
Allow Rate
+32.2% vs TC avg
637
Total Applications
+3.8%
Interview Lift
798
Avg Prosecution Days
Based on 613 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
28.0%
§102 Novelty
39.2%
§103 Obviousness
30.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18733327 SEMICONDUCTOR DEVICE Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18659802 DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18703291 DISPLAY SUBSTRATE AND DISPLAY DEVICE Non-Final OA BOE TECHNOLOGY GROUP CO., LTD.
18025066 DISPLAY PANEL HAVING OPTICAL ADJUSTMENT PATTERN OVERLAPPING LIGHT EMITTING ELEMENT AND DISPLAY DEVICE INCLUDING THE DISPLAY PANEL Non-Final OA BOE Technology Group Co., Ltd.
18774931 DISPLAY DEVICE Non-Final OA Samsung Display Co., Ltd.
17978330 LIGHT EMITTING DEVICE, OPTICAL DISTANCE-MEASURING DEVICE, AND IMAGE FORMING APPARATUS Non-Final OA FUJIFILM Business Innovation Corp.
18677960 MICROMECHANICAL COMPONENT WITH EXTERNAL CONTACTING Non-Final OA Robert Bosch GmbH
18741784 ELECTRONIC DEVICE Non-Final OA Innolux Corporation
18203868 COVER STRUCTURE FOR BEAMSHAPING FOR LIGHT EMITTING DIODE PACKAGES Non-Final OA CreeLED, Inc.
18469924 HIGH DENSITY METAL-OXIDE-SEMICONDUCTOR (MOS) CAPACITOR (MOSCAP) AND METAL-OXIDE-METAL (MOM) CAPACITOR (MOMCAP) STACKING LAYOUT Non-Final OA QUALCOMM Incorporated
18214244 INTEGRATED CAPACITOR Non-Final OA Intel Corporation
18212824 INTEGRATED CIRCUIT STRUCTURE WITH BACKSIDE PLUG LAST APPROACH Non-Final OA Intel Corporation
18338395 INTEGRATED CIRCUIT DEVICES WITH FLIPPED STAIRCASE INTERCONNECT STRUCTURES Non-Final OA Intel Corporation
18750384 Electronic Device, Light-Emitting Device, Electronic Appliance, and Lighting Device Non-Final OA Semiconductor Energy Laboratory Co., Ltd.
18404866 AREA EFFECTIVE HEAT SINK Non-Final OA Murata Manufacturing Co., Ltd.
18470354 STRAIN INDUCING TRENCHES FOR SOURCE/DRAIN REGIONS Final Rejection International Business Machines Corporation
18732634 SEMICONDUCTOR DEVICE INCLUDING CRYSTALLINE OXIDE SEMICONDUCTOR AND METHOD FOR FABRICATING THE SAME Non-Final OA SK hynix Inc.
18521549 MEMORY DEVICE AND MANUFACTURING METHOD OF THE MEMORY DEVICE Final Rejection SK hynix Inc.
18610219 SEMICONDUCTOR DEVICES IN INTEGRATED CIRCUIT HAVING DIFFERENT THRESHOLD VOLTAGES Non-Final OA TEXAS INSTRUMENTS INCORPORATED
18443166 SEMICONDUCTOR DEVICE ASSEMBLIES WITH CROSS-STACK STRUCTURES, AND ASSOCIATED METHODS Non-Final OA Micron Technology, Inc.
18776288 METHOD OF MANUFACTURING AN OPTICAL SENSOR Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
18333977 SEMICONDUCTOR CHIP AND SEMICONDUCTOR DEVICE Non-Final OA ROHM Co., LTD.
18475370 Semiconductor Die Bonding Final Rejection Wolfspeed, Inc.
18443283 ARTIFICIAL SYNAPSE DEVICE BASED ON RESISTIVE CHANGE MEMORY DEVICE, AND METHOD FOR MANUFACTURING SAME Non-Final OA IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
18635567 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA Amkor Technology Singapore Holding Pte. Ltd.

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