Prosecution Insights
Last updated: October 02, 2026

Examiner: KHUU, HIEN DIEU THI

Tech Center 3600 • Art Units: 2116 2119 2121 2123 2615 2857 2863 2865 3652

This examiner grants 87% of resolved cases

Analysis

Hien Dieu Thi Khuu is an examiner in Tech Center 3600 and Art Unit 2116, with 474 resolved cases. She has a high allowance rate of 87.1 percent and a median days to allowance of 933. This profile indicates a very efficient and applicant-friendly prosecution environment, where nearly nine out of ten cases result in a grant.

The interview lift is 14.2 percent. Although the 87.1 percent baseline allowance rate is already high, the positive lift indicates that interviews still provide a significant benefit. Practitioners can expect a high likelihood of grant within the 933-day timeframe, and interviews can be used to address any remaining examiner concerns and further improve the chances of success beyond the baseline.

Strategy for this examiner should focus on maintaining the efficiency shown by the 933 median days to allowance. The 87.1 percent allowance rate suggests that most applications are on a path to success. The 14.2 percent interview lift is a useful option for practitioners to use, ensuring that any hurdles are quickly cleared and the application proceeds to allowance in Art Unit 2116.

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

Performance Statistics

87.1%
Allow Rate
+35.1% vs TC avg
492
Total Applications
+14.2%
Interview Lift
933
Avg Prosecution Days
Based on 474 resolved cases, 2023–2026

Rejection Statute Breakdown

17.2%
§101 Eligibility
33.3%
§102 Novelty
26.7%
§103 Obviousness
17.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18974462 AIR CONDITIONER AND METHOD FOR CONTROLLING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18811580 AIR CONDITIONING DEVICE, AIR SENSOR DEVICE, AND CONTROL METHOD THEREOF Non-Final OA Samsung Electronics Co., Ltd.
18589740 DISPLAY CONTROL METHOD AND ELECTRONIC DEVICE FOR SUPPORTING SAME Final Rejection Samsung Electronics Co., Ltd.
18485468 AUTOMATED TRANSPORTATION SYSTEM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19002285 DEVICE MANAGEMENT APPARATUS, HEAT SOURCE SYSTEM, MANAGEMENT APPARATUS, AND DEVICE MANAGEMENT SYSTEM Non-Final OA DAIKIN INDUSTRIES, LTD.
18843048 A METHOD FOR CONTROLLING A POWER PLANT Non-Final OA VESTAS WIND SYSTEMS A/S
18574259 MOVEMENT ROUTE DETERMINATION DEVICE AND NON-TRANSITORY COMPUTER-READABLE MEDIUM STORING A COMPUTER PROGRAM Final Rejection FANUC CORPORATION
18569982 GENERATING AND EXECUTING ENCRYPTED PROGRAM INSTRUCTIONS BY MEANS OF A DIGITAL CONTROL DEVICE Final Rejection Siemens Aktiengesellschaft
18683796 POWER TRANSACTION SYSTEM, POWER SUPPLY TRANSACTION MANAGEMENT METHOD, AND POWER DEMAND TRANSACTION MANAGEMENT METHOD Final Rejection HITACHI, LTD.
16931408 Methods and Systems for Noninvasive Mind-Controlled Devices Final Rejection CARNEGIE MELLON UNIVERSITY
18782667 SYSTEM AND METHOD FOR DYNAMICALLY ADJUSTING THIN-FILM DEPOSITION PARAMETERS Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18359942 LUBRICATOR CONTROL SYSTEM Non-Final OA AKTIEBOLAGET SKF
18552658 A TYPOGRAPHICAL-BASED DIGITAL SIGNATURE FOR HOUSEHOLD EQUIPMENT Final Rejection RESIDEO USA LLC
17955529 SYSTEMS AND METHODS OF REMOTELY CONTROLLING CHANNEL RESETS FOR INPUT/OUTPUT MODULES OF INDUSTRIAL SYSTEMS Final Rejection ROCKWELL AUTOMATION TECHNOLOGIES, INC.
18849526 SIMULATION DEVICE, SIMULATION METHOD AND SIMULATION PROGRAM Non-Final OA THE JAPAN STEEL WORKS, LTD.

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