Prosecution Insights
Last updated: October 04, 2026

Examiner: YUAN, DAH WEI D

Tech Center 1700 • Art Units: 1700 1717 1722 1723 1725 1727 1731 1737 1795

This examiner grants 25% of resolved cases

Analysis

Dah Wei D Yuan has overseen 44 resolved cases in Art Unit 1700 of Technology Center 1700. The allowance rate is 25.0 percent, which suggests the examination environment. The median days to allowance is 1379, indicating that successful applications require time and persistence. The interview lift of 11.5 percent shows a benefit from direct examiner contact during the prosecution phase.

Given the 25.0 percent allowance rate, practitioners must be prepared for the prosecution path. The 1379-day timeline reflects the pace of reaching an outcome in this specific art unit. With 44 cases resolved, the data indicates the standards for allowance. The 11.5 percent lift, while positive, is a factor to consider alongside the baseline rate. Applicants should factor the 1379-day median into their long-term intellectual property strategy for Technology Center 1700. This data provides a basis for evaluating the requirements for success.

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

Performance Statistics

25.0%
Allow Rate
-40.0% vs TC avg
53
Total Applications
+11.5%
Interview Lift
1379
Avg Prosecution Days
Based on 44 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
19.7%
§102 Novelty
53.7%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17821757 SECONDARY BATTERY Final Rejection Samsung SDI Co., Ltd.
17787448 ENERGY STORAGE DEVICE Final Rejection GS YUASA INTERNATIONAL LTD.

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