Prosecution Insights
Last updated: October 27, 2026

Sheng Jen Tsai, USPTO Patent Examiner

Listed by the USPTO as TSAI, SHENG JEN

Tech Center 2400 • Art Units: 2136 2139 2186 2437

This examiner grants 70% of resolved cases

Analysis

TSAI, SHENG JEN is a USPTO patent examiner in Tech Center 2400 and art unit 2136. The record contains 806 resolved cases, an allowance rate of 70.5%, and a median of 1226 days to allowance. The interview lift is 13.8%, indicating that interviews are associated with improved allowance outcomes.

The listed companies are Samsung Electronics Co., Ltd., Huawei Technologies Co., Ltd., and Qualcomm Incorporated. The listed firms are CONLEY ROSE, P.C., MARSHALL, GERSTEIN & BORUN LLP, and NSIP LAW. The substantial case record supports using the profile for practical planning, with interviews providing a constructive complement to amendments and written argument.

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

Performance Statistics

70.5%
Allow Rate
+12.5% vs TC avg
832
Total Applications
+13.8%
Interview Lift
1226
Avg Prosecution Days
Based on 806 resolved cases, 2023–2026

Rejection Statute Breakdown

2.7%
§101 Eligibility
26.8%
§102 Novelty
54.1%
§103 Obviousness
13.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19028547 SEMICONDUCTOR MEMORY DEVICE AND A MEMORY SYSTEM INCLUDING THE SAME Final Rejection Samsung Electronics Co., Ltd.
18637710 SYSTEM AND METHOD FOR ADAPTIVE PREFETCH FOR MEMORY DEVICE Final Rejection Samsung Electronics Co., Ltd.
18497878 METADATA TABLE MANAGEMENT SCHEME FOR DATABASE CONSISTENCY Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18460608 MEMORY SHARING CONTROL METHOD AND DEVICE, COMPUTER DEVICE, AND SYSTEM Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18999689 SINGLE PASS FOOTPRINT COMPRESSION OPTIMIZATION Final Rejection QUALCOMM Incorporated
19233614 SECURE WRITE PROTECTIONS FOR MEMORY SYSTEMS Final Rejection Micron Technology, Inc.
18897840 MANAGING AND RANKING MEMORY RESOURCES Non-Final OA Microsoft Technology Licensing, LLC
18086429 APPLICATION PROGRAMMING INTERFACE TO TRANSFORM AND STORE INFORMATION CORRESPONDING TO A MEMORY TRANSACTION Non-Final OA NVIDIA Corporation
19085326 SPATIAL PRIORITIZATION FOR MEMORY WRITES Final Rejection SK Hynix NAND Product Solutions Corp. (dba Solidigm)
18405063 MEMORY SYSTEM AND OPERATION METHOD THEREOF Non-Final OA YANGTZE MEMORY TECHNOLOGIES CO., LTD.
18689861 MEMORY MANAGEMENT METHOD FOR PSEUDO-FUNCTIONAL DIFFERENTIABLE PROGRAMMING Final Rejection Purdue Research Foundation

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Frequently Asked Questions

What is examiner Sheng Jen Tsai's allowance rate?

70.5% of resolved applications examined by Sheng Jen Tsai were allowed (806 resolved cases), compared with 72.1% across Art Unit 2136 over the last five years.

Does an interview help with examiner Sheng Jen Tsai?

This examiner's interview lift is +13.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sheng Jen Tsai take to allow a patent?

Applications allowed by Sheng Jen Tsai took 1,226 days on average from filing to allowance.

Which art unit does examiner Sheng Jen Tsai work in?

Sheng Jen Tsai examines applications in Art Unit 2136 in Tech Center 2400 (Networking & Security).

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