Prosecution Insights
Last updated: October 02, 2026

Examiner: ZHU, ZHIMEI

Tech Center 4100 • Art Units: 2431 2495 4100

This examiner grants 78% of resolved cases

Analysis

Zhimei Zhu works in Tech Center 4100 and Art Unit 2431, having resolved 296 cases. The examiner has an allowance rate of 77.7 percent. This 77.7 percent rate suggests a relatively positive outlook for applications in this technology area. The 296 resolved cases provide a solid foundation for evaluating the examiner's prosecution style in Tech Center 4100.

The interview lift is 37.1 percent, which is a significant increase over the baseline. This 37.1 percent lift suggests that direct communication is very effective for resolving issues and moving cases toward allowance. The median days to allowance for these cases is 987 days. Practitioners should consider the lift as a primary strategy for navigating the 987 days median timeline. These metrics together indicate that while the baseline allowance rate is high, active engagement through interviews can further enhance the probability of a positive outcome in Art Unit 2431.

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

Performance Statistics

77.7%
Allow Rate
+17.7% vs TC avg
306
Total Applications
+37.1%
Interview Lift
987
Avg Prosecution Days
Based on 296 resolved cases, 2023–2026

Rejection Statute Breakdown

10.3%
§101 Eligibility
10.4%
§102 Novelty
49.5%
§103 Obviousness
18.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18977528 DATA BACKUP METHOD, APPARATUS, AND SYSTEM Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18943778 APPARATUS & METHOD FOR AUTHENTICATION Non-Final OA Nokia Technologies Oy
18664660 ROW LEVEL SECURITY ON DATABASE OBJECTS Non-Final OA SAP SE
19247861 GENERATING PLAYBOOK RUN STATISTICS FOR PLAYBOOKS EXECUTED BY AN INFORMATION TECHNOLOGY AND SECURITY OPERATIONS APPLICATION Non-Final OA Cisco Technology, Inc.
19076410 EXECUTING MODULAR ALERTS AND ASSOCIATED SECURITY ACTIONS Non-Final OA Cisco Technology, Inc.
18900283 REPRESENTATION-AGNOSTIC FILE CLASSIFIER Final Rejection CrowdStrike, Inc.
19017820 SECURE KEY REPLACEMENT SYSTEM, SECURE KEY REPLACEMENT DEVICE AND SECURE KEY REPLACEMENT METHOD Non-Final OA Winbond Electronics Corp.

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