Prosecution Insights
Last updated: October 02, 2026

Examiner: DAO, TUAN C.

Tech Center 4100 • Art Units: 2193 2194 2198 2445 2859 4100

This examiner grants 82% of resolved cases

Analysis

Tuan C. Dao serves as a patent examiner in Tech Center 4100 and Art Unit 2193. The examiner's professional record includes 806 resolved cases, which serve as the basis for the following metrics. The allowance rate for these 806 cases is 82.0 percent. This 82.0 percent figure is a key data point for applicants to analyze when their patent applications are assigned to this examiner. The 806 resolved cases provide a sample for understanding the examiner's tendencies in Art Unit 2193.

The median days to allowance for successful applications is 1095. This 1095-day metric indicates the typical duration from filing to the grant of a patent for cases handled by this examiner. Practitioners can incorporate the 1095-day figure into their long-term planning and budgeting for patent prosecution. The 1095-day median is a consistent indicator of the procedural pace within Tech Center 4100. Understanding this timeline is essential for coordinating intellectual property strategies.

The data also shows an interview lift of 15.6 percent. This 15.6 percent lift represents the statistical change in the probability of an allowance when an interview is conducted during prosecution. Applicants may consider the 15.6 percent lift when deciding whether to engage in verbal advocacy with the examiner. The 15.6 percent lift suggests that direct communication is a factor in the resolution of the 806 cases. This metric, combined with the 82.0 percent allowance rate, provides a view of the examiner's history.

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

Performance Statistics

82.0%
Allow Rate
+22.0% vs TC avg
827
Total Applications
+15.6%
Interview Lift
1095
Avg Prosecution Days
Based on 806 resolved cases, 2023–2026

Rejection Statute Breakdown

15.8%
§101 Eligibility
20.7%
§102 Novelty
54.3%
§103 Obviousness
5.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18383858 MUTABLE PARAMETERS FOR MACHINE LEARNING MODELS DURING RUNTIME Non-Final OA Apple Inc.
18456791 USER SEGMENTATION FOR DYNAMIC PERSONALIZED APPLICATION FLOWS Non-Final OA Capital One Services, LLC
18667188 DIGITAL TWIN SYSTEM, GRAPHICS PROCESSING UNIT SERVER, AND A METHOD FOR CONTROLLING THE DIGITAL TWIN SYSTEM Non-Final OA HYUNDAI AUTOEVER CORP.
18675682 AUTOMATED GENERATION OF CONVERSATIONAL WORKFLOWS FOR AUTOMATION CHATBOTS Non-Final OA PayPal, Inc.
18827392 TASK MANAGEMENT INTERFACES FOR END-TO-END TASK PROCESSING AND SUB-TASK GENERATION AND MODIFICATION Non-Final OA Microsoft Technology Licensing, LLC
18229562 APPLICATION PROGRAMMING INTERFACE TO INVALIDATE INFORMATION IN FIFTH GENERATION NEW RADIO (5G-NR) STATICALLY-SIZED LINKED STORAGE Final Rejection NVIDIA Corporation
17691872 Techniques for Scalable Load Balancing of Thread Groups in a Processor Non-Final OA NVIDIA Corporation
18658556 SYSTEMS AND METHODS FOR VISUALIZING EVENT DATA OF A CLASSIFICATION YARD Non-Final OA BNSF Railway Company
18624679 INTERRUPT MODERATION ONLOAD FOR ACCELERATED DATA PATHS Non-Final OA MELLANOX TECHNOLOGIES, LTD.
18374837 ADVANCED HARDWARE SCHEDULING USING UNMAPPED-QUEUE DOORBELLS Final Rejection ADVANCED MICRO DEVICES, INC.
17708021 DYNAMIC REGISTER RENAMING IN HARDWARE TO REDUCE BANK CONFLICTS IN PARALLEL PROCESSOR ARCHITECTURES Non-Final OA ADVANCED MICRO DEVICES, INC.
18710385 NETWORK TASK PROCESSING METHOD AND APPARATUS BASED ON ARTIFICIAL INTELLIGENCE, AND STORAGE MEDIUM Non-Final OA Beijing Xiaomi Mobile Software Co., Ltd.
18380658 CONTAINERIZED MICROSERVICE ARCHITECTURE FOR MANAGEMENT APPLICATIONS Final Rejection VMware LLC

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