Prosecution Insights
Last updated: October 02, 2026

Examiner: LE, THANG XUAN

Tech Center 2800 • Art Units: 2858 2867

This examiner grants 88% of resolved cases

Analysis

Thang Xuan Le is a patent examiner in Art Unit 2858, located within Tech Center 2800. He has handled 918 resolved cases, making him a highly experienced member of the unit. The allowance rate for these cases is 88.3 percent, which is a very high figure that should encourage applicants. The interview lift is 8.8 percent, showing that while the base allowance rate is high, an interview can still provide a meaningful benefit. This 8.8 percent lift is a useful tool for practitioners to keep in mind during prosecution.

The median days to allowance is 810, which is a relatively quick pace for patent issuance. This 810-day timeline, paired with the 88.3 percent allowance rate, suggests a very efficient and applicant-friendly environment. The 918 resolved cases provide a high degree of confidence in these metrics. Practitioners can use the 8.8 percent lift to overcome any specific hurdles that might arise, even though the 88.3 percent allowance rate is already quite favorable. The 810-day median pendency allows for rapid portfolio development. Overall, the data from Art Unit 2858 indicates that this examiner is both productive and receptive to patent applications.

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

Performance Statistics

88.3%
Allow Rate
+20.3% vs TC avg
934
Total Applications
+8.8%
Interview Lift
810
Avg Prosecution Days
Based on 918 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
27.1%
§102 Novelty
43.1%
§103 Obviousness
20.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19099484 RECONSTRUCTION PARAMETER DETERMINATION FOR THE RECONSTRUCTION OF SYNTHESIZED MAGNETIC RESONANCE IMAGES Non-Final OA KONINKLIJKE PHILIPS N.V.
17711878 LASER-INDUCED THERMAL STRESSING OF INTEGRATED CIRCUITS Non-Final OA Intel Corporation
18784458 ELECTROMAGNETIC METAMATERIAL FOR BOREHOLE RADAR POWER EMISSION AMPLIFICATION Non-Final OA Saudi Arabian Oil Company
19030021 EXCITER OVERCURRENT DETECTION DEVICE Non-Final OA HYUNDAI MOBIS CO., LTD.
18429091 ELECTRONIC DEVICE, SYSTEM AND INDUCTIVE SWITCHING TEST METHOD Final Rejection Texas Instruments Incorporated
18871557 METHOD FOR TESTING A PACKAGING SUBSTRATE, AND APPARATUS FOR TESTING A PACKAGING SUBSTRATE Non-Final OA Applied Materials, Inc.
18848601 METHODS AND APPARATUSES FOR IDENTIFYING DEFECTIVE ELECTRICAL CONNECTIONS OF A SUBSTRATE Non-Final OA Applied Materials, Inc.
18891702 DISPLACEMENT DETECTION DEVICE, DISPLACEMENT DETECTION SYSTEM AND INDUSTRIAL EQUIPMENT Final Rejection NHK SPRING CO., LTD.
19035323 MAGNETORESISTANCE EFFECT ELEMENT, MAGNETIC SENSOR, AND CAMERA MODULE Non-Final OA TDK Corporation
19019055 Systems and Methods for Identifying and Managing Stress Conditions, Risk State or Aging State Associated with Capacitors Non-Final OA Schneider Electric USA, Inc.
19011220 CORONA DETECTION USING AUDIO DATA Non-Final OA Hubbell Incorporated
18944028 BATTERY VOLTAGE MONITORING SEMICONDUCTOR INTEGRATED CIRCUIT AND ELECTRONIC CIRCUIT SYSTEM Non-Final OA MITSUMI ELECTRIC CO., LTD.
18939540 TEST FIXTURE ASSEMBLY Non-Final OA Universal Scientific Industrial (Shanghai) Co., Ltd.

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