Prosecution Insights
Last updated: October 27, 2026

Xiao Liu, USPTO Patent Examiner

Listed by the USPTO as LIU, XIAO

Tech Center 3700 • Art Units: 2613 2664 2668 3774

This examiner grants 88% of resolved cases

Analysis

Xiao Liu has managed 320 resolved cases in Art Unit 2613. The allowance rate for these cases is 87.5%. The median time to allowance is 938 days. The interview lift is 12.3%, which represents the statistical change in the probability of allowance following an interview. These figures describe the prosecution environment in Tech Center 3700.

NEC Corporation, Huawei Technologies Co., Ltd., and Tencent Technology (Shenzhen) Company Limited are the top companies in this examiner's record. The 87.5% allowance rate and the 938-day median pendency are key metrics for these applicants. Firms like Anova Law Group, PLLC, BakerHostetler, and BANNER & WITCOFF, LTD. are active in this queue.

The 12.3% interview lift indicates that direct communication with the examiner correlates with a higher probability of allowance. Practitioners can use the 938-day median time to allowance to estimate the duration of the prosecution process. The 87.5% allowance rate provides a baseline for the likelihood of success. The 320 resolved cases offer a specific view of the examiner's historical performance.

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

Performance Statistics

87.5%
Allow Rate
+17.5% vs TC avg
370
Total Applications
+12.3%
Interview Lift
938
Avg Prosecution Days
Based on 320 resolved cases, 2023–2026

Rejection Statute Breakdown

7.7%
§101 Eligibility
18.2%
§102 Novelty
51.2%
§103 Obviousness
17.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18900476 IMAGE SPECIFIC GLOBAL TONE CURVE AND RESIDUAL GAIN MAP GENERATION BASED ON MULTIPLE IMAGES Non-Final OA Apple Inc.
18721177 METHOD AND APPARATUS OF IMAGE PROCESSING, ELECTRONIC DEVICE, AND STORAGE MEDIUM Final Rejection Beijing Zitiao Network Technology Co., Ltd.
18662584 GENERATING NATURAL LANGUAGE DESCRIPTIONS OF IMAGES Final Rejection Google LLC
19100618 MOBILE BODY TRACKING APPARATUS, METHOD, AND COMPUTER READABLE MEDIUM Non-Final OA NEC Corporation
18994670 ROAD MANAGEMENT SYSTEM, ROAD MANAGEMENT METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM Non-Final OA NEC Corporation
18994665 IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND RECORDING MEDIUM Non-Final OA NEC Corporation
18715164 IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM Final Rejection NEC Corporation
18588194 INFORMATION PROCESSING APPARATUS, METHOD AND NON-TRANSITORY COMPUTER READABLE MEDIUM Final Rejection KABUSHIKI KAISHA TOSHIBA
19062652 IMAGE CLASSIFICATION METHOD AND APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18551258 MODEL TRAINING METHOD, SCENE RECOGNITION METHOD, AND RELATED DEVICE Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18636550 THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE Final Rejection Panasonic Intellectual Property Corporation of America
19106651 VENDOR-AGNOSTIC AI IMAGE PROCESSING Non-Final OA KONINKLIJKE PHILIPS N.V.
18910470 METHOD AND APPARATUS FOR DETECTING TRANSPARENT OBSTACLE BASED ON ARTIFICIAL INTELLIGENCE Non-Final OA Kia Corporation
18994663 LEARNING DEVICE, LEARNING METHOD, AND LEARNING PROGRAM Non-Final OA NTT, Inc.
19076701 IMAGE RENDERING METHOD AND APPARATUS, ELECTRONIC DEVICE, STORAGE MEDIUM, AND PROGRAM PRODUCT Non-Final OA Tencent Technology (Shenzhen) Company Limited
19055443 METHOD AND APPARATUS FOR GENERATING HUMAN BODY DEPTH MAP, ELECTRONIC DEVICE, AND STORAGE MEDIUM Non-Final OA TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
18614160 OBJECT DETECTION USING IMAGE ALIGNMENT FOR AUTONOMOUS MACHINE APPLICATIONS Final Rejection NVIDIA Corporation
18656991 DETECT HIDDEN OBJECTS USING VEHICLE AND INFRASTRUCTURE SENSOR FUSION Final Rejection Ford Global Technologies, LLC
19041244 PRODUCT-INCLUSIVE IMAGE ALT TEXT GENERATION Non-Final OA Walmart Apollo, LLC
19065185 SYSTEM-ON-CHIP-BASED IMAGE PROCESSING METHOD, DEVICE, AND STORAGE MEDIUM Non-Final OA BEIJING HORIZON INFORMATION TECHNOLOGY CO., LTD.
18945375 UNSUPERVISED LEARNING OF OBJECT KEYPOINT LOCATIONS IN IMAGES THROUGH TEMPORAL TRANSPORT OR SPATIO-TEMPORAL TRANSPORT Non-Final OA DeepMind Technologies Limited

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Frequently Asked Questions

What is examiner Xiao Liu's allowance rate?

87.5% of resolved applications examined by Xiao Liu were allowed (320 resolved cases), compared with 68.8% across Art Unit 2613 over the last five years.

Does an interview help with examiner Xiao Liu?

This examiner's interview lift is +12.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

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

Applications allowed by Xiao Liu took 938 days on average from filing to allowance.

Which art unit does examiner Xiao Liu work in?

Xiao Liu examines applications in Art Unit 2613 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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