Prosecution Insights
Last updated: October 01, 2026

Examiner: ZHANG, YINGCHUAN

Tech Center 3700 • Art Units: 3635 3711 3714 3715

This examiner grants 69% of resolved cases

Analysis

Yingchuan Zhang serves in Tech Center 3700 and Art Unit 3635, where they have managed 300 resolved cases. The examiner maintains an allowance rate of 68.7 percent for these applications. This volume of 300 cases provides a clear baseline for evaluating prosecution outcomes in this specific technology area. Practitioners can use the 68.7 percent rate to set expectations for the likelihood of success during the examination process in Art Unit 3635.

The data indicates that conducting an interview with this examiner results in an interview lift of 28.6 percent. This figure suggests that direct communication is a significant factor in moving cases toward allowance compared to the baseline. For successful applications, the median days to allowance is 950 days. This duration of 950 days reflects the typical timeline from filing to a positive resolution when working with this examiner. The 28.6 percent interview lift highlights the potential value of oral advocacy. These metrics are essential for strategic planning in Tech Center 3700.

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

Performance Statistics

68.7%
Allow Rate
-1.3% vs TC avg
314
Total Applications
+28.6%
Interview Lift
950
Avg Prosecution Days
Based on 300 resolved cases, 2023–2026

Rejection Statute Breakdown

16.0%
§101 Eligibility
23.3%
§102 Novelty
38.7%
§103 Obviousness
15.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18766267 INFLATABLE BALL Final Rejection adidas AG
18779397 WEDGE GOLF CLUB FITTING SYSTEM Non-Final OA Acushnet Company
19045451 SYSTEMS AND METHODS FOR TRANSFERRING A PASSENGER COMPARTMENT BETWEEN RIDE SYSTEMS USING ROBOTIC TOOL CHANGERS Non-Final OA Disney Enterprises, Inc.
18671656 MULTI-BODY SHOW ELEMENT SYSTEMS AND METHODS Final Rejection Universal City Studios LLC
18981336 GOLF CLUB HEADS COMPRISING A VARIABLE FACE THICKNESS Non-Final OA KARSTEN MANUFACTURING CORPORATION

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