Prosecution Insights
Last updated: October 02, 2026

Examiner: CHO, SUNG IL

Tech Center 2800 • Art Units: 2825

This examiner grants 91% of resolved cases

Analysis

Sung Il Cho is an examiner in Tech Center 2800 and Art Unit 2825, with 603 resolved cases. The allowance rate is 91.4%, which is a very high baseline for success. The interview lift is 8.5%, showing that interviews provide a meaningful increase in the probability of allowance over the 91.4% baseline. This indicates that direct engagement with the examiner is a productive strategy in Art Unit 2825.

The median days to allowance is 744, which is a relatively fast timeline for the 603 resolved cases. This 744-day metric makes Art Unit 2825 an efficient unit for patent seekers. Practitioners should consider the 8.5% interview lift as a way to further enhance the already high 91.4% allowance rate. The combination of speed and high success is a defining feature of this examiner's profile. Attorneys can use the 744-day median to forecast a quick resolution for applications in Tech Center 2800.

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

Performance Statistics

91.4%
Allow Rate
+23.4% vs TC avg
625
Total Applications
+8.5%
Interview Lift
744
Avg Prosecution Days
Based on 603 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
33.3%
§102 Novelty
42.3%
§103 Obviousness
12.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19005393 METHOD OF OPERATING NONVOLATILE MEMORY DEVICE AND NONVOLATILE MEMORY DEVICE Final Rejection Samsung Electronics Co., Ltd.
18669633 MEMORY DEVICES AND OPERATING METHODS THEREOF Final Rejection Samsung Electronics Co., Ltd.
18977717 Memory with Serialized Redundancy Interface Non-Final OA QUALCOMM Incorporated
19176131 MANAGING PROGRAM OPERATIONS IN MEMORY SYSTEMS Non-Final OA Yangtze Memory Technologies Co., Ltd.
19172193 OPERATING METHOD FOR A MEMORY, A MEMORY, AND A MEMORY SYSTEM Non-Final OA Yangtze Memory Technologies Co., Ltd.
18739363 PRE-CHARGE SYSTEM FOR PERFORMING TIME-DIVISION PRE-CHARGE UPON BIT-LINE GROUPS OF MEMORY ARRAY AND ASSOCIATED PRE-CHARGE METHOD Non-Final OA MEDIATEK INC.
18444776 DUAL-RAIL MEMORY DEVICE WITH HIGH SPEED AND LOW POWER CONSUMPTION Final Rejection MEDIATEK INC.
18444754 NEGATIVE BIT LINE CONTROL MECHANISM Final Rejection MEDIATEK INC.
18371441 MEMORY WITH FLY-BITLINES THAT WORK WITH SINGLE-ENDED SENSING AND ASSOCIATED MEMORY ACCESS METHOD Non-Final OA MEDIATEK INC.
18571407 AUGMENTED MEMORY COMPUTING: A NEW PATHWAY FOR EFFICIENT AI COMPUTATIONS Final Rejection UNIVERSITY OF SOUTHERN CALIFORNIA
19004450 DEVICE INCLUDING MEMORY CELLS STORING MULTI-BIT DATA AND AN OPERATION METHOD THEREOF Non-Final OA SK hynix Inc.
18496735 MEMORY DEVICE FOR DRIVING CHARGE PUMPS RESPECTIVELY INCLUDED IN MEMORY DIES Non-Final OA SK hynix Inc.
19096833 MEMORY SYSTEM Non-Final OA KIOXIA CORPORATION
19087374 SOURCE LINE CONFIGURATIONS FOR A MEMORY DEVICE Non-Final OA Micron Technology, Inc.
19062975 SINGLE PLATE CONFIGURATION AND MEMORY ARRAY OPERATION Non-Final OA Micron Technology, Inc.
19054266 LEVEL SHIFTING IN ALL LEVELS PROGRAMMING OF A MEMORY DEVICE IN A MEMORY SUB-SYSTEM Non-Final OA Micron Technology, Inc.
19036948 NAND ARRAY INDUCTORS Non-Final OA Micron Technology, Inc.
18829440 PROGRAM CONTINUATION STRATEGIES AFTER MEMORY DEVICE POWER LOSS Non-Final OA Micron Technology, Inc.
18755062 PERFORMING DATA INTEGRITY CHECKS TO IDENTIFY DEFECTIVE WORDLINES Non-Final OA Micron Technology, Inc.
18662962 MITIGATION OF CHARGE-LOSS IN SUSPENDED PROGRAM STATE IN A MEMORY DEVICE Non-Final OA Micron Technology, Inc.
18942973 CIRCUITRY FOR ADJUSTING RETENTION VOLTAGE OF A STATIC RANDOM ACCESS MEMORY (SRAM) Non-Final OA STMicroelectronics International N.V.
18619699 BITCELL PROCESS COMPENSATED READ ASSIST SCHEME FOR SRAM Non-Final OA STMicroelectronics International N.V.
19059384 MEMORY DEVICE WITH ADDITIONAL WRITE BIT LINES Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
19043856 ANTI-FUSE DEVICE AND METHOD Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
19011055 MEMORY DEVICE WITH A BIAS CIRCUIT Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18967206 MEMORY DEVICE WITH SIGNAL EDGE SHARPENER CIRCUITRY Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18769407 MEMORY DEVICE INCLUDING DUAL CONTROL CIRCUITS Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
17120702 SRAM MEMORY HAVING SUBARRAYS WITH COMMON IO BLOCK Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
19176369 Pre-Charging Bit Lines Through Charge-Sharing Non-Final OA Taiwan Semiconductor Manufacturing Company, Limited.
18755149 CIRCUIT FOR MULTIPORT REGISTER FILE' Non-Final OA Arm Limited

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