Prosecution Insights
Last updated: October 02, 2026

Examiner: DUAN, VIVIAN WEIJIA

Tech Center 2100 • Art Units: 2191

This examiner grants 73% of resolved cases

Analysis

Vivian Weijia Duan is an examiner in Art Unit 2191 of Tech Center 2100. With 22 resolved cases, the examiner has an allowance rate of 72.7%. This indicates a high probability of success for patent applicants. The median days to allowance is 1026, providing a target for prosecution duration.

The interview lift is 16.1%, showing that interviews provide a measurable benefit in increasing the chances of allowance relative to the 72.7% baseline. Practitioners should consider this 16.1% lift as part of their overall strategy. The 22 resolved cases provide a baseline for these metrics.

In Tech Center 2100, the 72.7% allowance rate and 1026-day median timeline suggest a steady path to allowance in Art Unit 2191. The 16.1% interview lift is a useful tactical option. These figures offer a data-grounded 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

72.7%
Allow Rate
+17.7% vs TC avg
43
Total Applications
+16.1%
Interview Lift
1026
Avg Prosecution Days
Based on 22 resolved cases, 2023–2026

Rejection Statute Breakdown

26.3%
§101 Eligibility
7.3%
§102 Novelty
44.8%
§103 Obviousness
19.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18466782 SYSTEM ARCHITECTURE WITH GENERATIVE AI Non-Final OA The Toronto-Dominion Bank
18788525 METHOD FOR TESTING A COMPUTER PROGRAM Non-Final OA Robert Bosch GmbH
18722874 SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR PROGRAM ANALYSIS Non-Final OA COMMISSARIAT A L’ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
18438892 COMPONENT TESTING USING LOG EVENTS Final Rejection Capital One Services, LLC
18426290 MACHINE LEARNING BASED STATIC PROFILING Final Rejection Oracle International Corporation
18558200 PROGRAM GENERATION APPARATUS, PROGRAM GENERATION METHOD AND PROGRAM Non-Final OA NTT, Inc.
18822135 SYSTEMS AND METHODS FOR COMMON FRAMEWORK PROCESSING OF DIFFERENT SOFTWARE APPLICATIONS Non-Final OA Truist Bank
18190449 OBTAINING SOFTWARE UPDATE FROM AN OVER THE AIR SERVER BASED ON AVAILABLE MEMORY Final Rejection YINWANG INTELLIGENT TECHNOLOGIES CO., LTD.
18394240 SYSTEM AND METHOD FOR MANAGING A TEST BENCH FOR A CROSS-DOMAIN TEST Final Rejection WOVEN BY TOYOTA, INC.
18427597 COMPOSABLE KERNELS Final Rejection Modular Inc.

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