Prosecution Insights
Last updated: October 27, 2026

Xiaoming Liu, USPTO Patent Examiner

Listed by the USPTO as LIU, XIAOMING

Tech Center 2800 • Art Units: 2812

This examiner grants 87% of resolved cases

Analysis

LIU, XIAOMING is a USPTO patent examiner in Tech Center 2800 and Art Unit 2812. The record includes 615 resolved cases, with an 86.7% allowance rate and a median of 825 days to allowance. The allowance figure indicates that most matters reached allowance, while the median timing suggests a relatively contained prosecution path for this record.

The interview lift is 10.6%, reflecting a positive but limited association between interviews and allowance outcomes. The listed companies are Intel, Taiwan Semiconductor Manufacturing, and Canon. The listed firms are Harrity & Harrity, Schwabe Williamson & Wyatt, and Birch Stewart Kolasch & Birch. Applicants may emphasize strong written claim presentation while using interviews to resolve focused issues.

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

Performance Statistics

86.7%
Allow Rate
+18.7% vs TC avg
660
Total Applications
+10.6%
Interview Lift
825
Avg Prosecution Days
Based on 615 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
24.6%
§102 Novelty
64.0%
§103 Obviousness
3.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18762397 METHOD OF FABRICATING A SEMICONDUCTOR DEVICE Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18423119 ORGANIC LIGHT EMITTING ELEMENT Final Rejection CANON KABUSHIKI KAISHA
17979849 SEMICONDUCTOR SUBSTRATE AND ELECTRICAL INSPECTION METHOD Final Rejection CANON KABUSHIKI KAISHA
18755387 INTERPOSER INCLUDING LIGHT EMITTING DIODE, METHOD FOR MANUFACTURING INTERPOSER INCLUDING LIGHT EMITTING DIODE, AND METHOD FOR INSPECTING LIGHT EMITTING DIODE Non-Final OA LG Display Co., Ltd.
18749931 THIN FILM TRANSISTOR SUBSTRATE AND METHOD OF MANUFATURING THE SAME AND DISPLAY DEVICE USING THE SAME Non-Final OA LG Display Co., Ltd.
18519386 DISPLAY DEVICE Final Rejection Samsung Display Co., LTD.
18596664 SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SAME Non-Final OA TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
18762576 DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING DISPLAY PANEL Non-Final OA Tianma Advanced Display Technology Institute (Xiamen) Co., Ltd.
18290289 ENHANCED I/O SEMICONDUCTOR CHIP PACKAGE AND COOLING ASSEMBLY HAVING SIDE I/OS Final Rejection Intel Corporation
18216525 THROUGH GLASS VIAS WITH COMPLIANT LAYER FOR INTEGRATED CIRCUIT DEVICE PACKAGES Non-Final OA Intel Corporation
18212382 INTEGRATED CIRCUIT STRUCTURE WITH DEEP VIA BAR ISOLATION Non-Final OA Intel Corporation
18338176 DIELECTRIC MATERIAL AND A MOLD COMPOUND WITH DIFFERENT DIELECTRIC CONSTANTS COUPLED TO A DIE THAT INCLUDES INTEGRATED CIRCUITRY Non-Final OA Intel Corporation
18723662 ELECTRONIC DEVICE Non-Final OA SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
18584470 MEMORY DEVICES HAVING ADJACENT MEMORY CELLS WITH MITIGATED DISTURB RISK Non-Final OA Micron Technology, Inc.
18643589 POWER MODULE STRUCTURE Non-Final OA Delta Electronics, Inc.
18631011 BACKSIDE GATE TIE DOWN THROUGH BACKSIDE POWER BAR Non-Final OA International Business Machines Corporation
18661044 Method for Attaching Metallic Bodies to Thin Semiconductor Dies at Wafer Level Non-Final OA Infineon Technologies AG
18781808 DOPING ACTIVATION AND OHMIC CONTACT FORMATION IN A SiC ELECTRONIC DEVICE, AND SiC ELECTRONIC DEVICE Non-Final OA STMicroelectronics S.r.l.
18785869 METHODS OF FORMING SEMICONDUCTOR DEVICES Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18783502 BARRIER LAYER FOR AN INTERCONNECT STRUCTURE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18590175 Diffusion Barrier Layers in Semiconductor Devices Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18624655 PLASMA GENERATING DEVICE, SUBSTRATE PROCESSING APPARATUS, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Final Rejection Kokusai Electric Corporation
18740864 APPARATUS FORMED FROM ELECTRONIC COMPONENTS HAVING DIFFERENT RESPECTIVE THICKNESSES AND METHODS OF FORMING AN APPARATUS FROM ELECTRONIC COMPONENTS HAVING DIFFERENT RESPECTIVE THICKNESSES Non-Final OA Microchip Technology Incorporated

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Frequently Asked Questions

What is examiner Xiaoming Liu's allowance rate?

86.7% of resolved applications examined by Xiaoming Liu were allowed (615 resolved cases), compared with 82.1% across Art Unit 2812 over the last five years.

Does an interview help with examiner Xiaoming Liu?

This examiner's interview lift is +10.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Xiaoming Liu take to allow a patent?

Applications allowed by Xiaoming Liu took 825 days on average from filing to allowance.

Which art unit does examiner Xiaoming Liu work in?

Xiaoming Liu examines applications in Art Unit 2812 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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