Prosecution Insights
Last updated: October 01, 2026

Examiner: TRUONG, LECHI

Tech Center 4100 • Art Units: 2194 4100

This examiner grants 87% of resolved cases

Analysis

Lechi Truong is an examiner in Tech Center 4100 and Art Unit 2194. He has managed 888 resolved cases, maintaining an allowance rate of 87.3 percent. The median days to allowance for his cases is 1103, which serves as a benchmark for the duration of the prosecution process. This 1103 day timeline is a factor for practitioners to consider when filing in this unit.

A data point for this examiner is the interview lift of 36.6 percent. This lift indicates that conducting an interview increases the likelihood of an allowance compared to the 87.3 percent baseline. Given the 888 resolved cases, this 36.6 percent lift figure represents a trend that practitioners should consider. The combination of an 87.3 percent allowance rate and the interview lift describes the environment in Tech Center 4100 and Art Unit 2194. These metrics inform strategy.

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

Performance Statistics

87.3%
Allow Rate
+27.3% vs TC avg
921
Total Applications
+36.4%
Interview Lift
1103
Avg Prosecution Days
Based on 889 resolved cases, 2023–2026

Rejection Statute Breakdown

18.1%
§101 Eligibility
4.1%
§102 Novelty
63.8%
§103 Obviousness
8.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18214199 Technique For Generating A Bone Plate Design Final Rejection Stryker European Operations Holdings LLC
18826499 Artificial Intelligence AI Control Apparatus and Acceleration Method Non-Final OA Huawei Technologies Co., Ltd.
18361449 Computation and Storage of Object Identity Hash Values Non-Final OA Oracle International Corporation
18685745 Efficiency Engine In A Cloud Computing Architecture Final Rejection Microsoft Technology Licensing, LLC
18438996 FRACTIONAL PROCESSING CAPACITY ALLOCATION BASED ON ESTIMATED LOAD Non-Final OA Microsoft Technology Licensing, LLC
18470795 CONGESTION CONTROL FOR AUTOMATIC COMPUTE CAPACITY SATURATION Final Rejection Microsoft Technology Licensing, LLC
18795403 APPLICATION PROGRAMMING INTERFACE FOR SCRAPING DATA ACROSS PLATFORMS Non-Final OA Truist Bank
18530001 MIGRATING SENSITIVE DATA ACROSS CLOUD CONFIDENTIAL COMPUTING ENVIRONMENTS Final Rejection International Business Machines Corporation
18070180 APPLICATION PROGRAMMING INTERFACE TO TRANSFER INFORMATION BETWEEN ACCELERATOR MEMORY Final Rejection NVIDIA Corporation
17740041 DATA COMPRESSION API Final Rejection NVIDIA Corporation
17718065 APPLICATION PROGRAMMING INTERFACE TO GENERATE A REPRESENTATION OF GRAPH CODE Non-Final OA NVIDIA Corporation
17691808 Flexible Migration of Executing Software Between Processing Components Without Need For Hardware Reset Final Rejection NVIDIA Corporation
17572391 APPLICATION PROGRAMMING INTERFACE TO INDICATE EXECUTION OF GRAPH NODES Non-Final OA NVIDIA Corporation
17548433 APPLICATION PROGRAMMING INTERFACES FOR INTEROPERABILITY Non-Final OA NVIDIA Corporation
17548445 APPLICATION PROGRAMMING INTERFACES FOR INTEROPERABILITY Final Rejection NVIDIA Corporation
18197470 METHODS, APPARATUSES, AND COMPUTER PROGRAM PRODUCTS FOR PROVIDING A DYNAMIC EXTERNAL USER INTERFACE TO A PROCESS SIMULATION SERVICE Non-Final OA Honeywell International Inc.
18394797 CONTROLLER FOR AN ARRAY OF DATA PROCESSING ENGINES Final Rejection Advanced Micro Devices, Inc.
18147081 Processing Element-Centric All-to-All Communication Non-Final OA Advanced Micro Devices, Inc.
18383819 ARTIFICIAL INTELLIGENCE ACCELERATOR AND OPERATING METHOD THEREOF Final Rejection INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

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