Prosecution Insights
Last updated: October 26, 2026

Yu Zhao, USPTO Patent Examiner

Listed by the USPTO as ZHAO, YU

Tech Center 2100 • Art Units: 2161 2169

This examiner grants 53% of resolved cases

Analysis

ZHAO, YU has resolved 369 cases in Tech Center 2100 and Art Unit 2161. The allowance rate is 52.6%, while the interview lift is 40.7%. The median time to allowance is 1515 days. The record shows an allowance rate near half of resolved cases and a meaningful interview association, while the median period indicates that prosecution planning should account for extended pendency.

The listed companies are Beijing Zitiao Network Technology Co., Ltd., Pure Storage Inc., and Microsoft Technology Licensing, LLC. The leading firms are DLA Piper LLP (US) Boston and KLARQUIST SPARKMAN LLP. These associations help practitioners identify relevant software applicants and counsel with experience before the examiner.

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

Performance Statistics

52.6%
Allow Rate
-2.4% vs TC avg
381
Total Applications
+40.7%
Interview Lift
1515
Avg Prosecution Days
Based on 369 resolved cases, 2023–2026

Rejection Statute Breakdown

20.1%
§101 Eligibility
4.6%
§102 Novelty
59.1%
§103 Obviousness
10.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18952089 DATA PROCESSING METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM Final Rejection Beijing Zitiao Network Technology Co., Ltd.
19263692 Storing and Processing Encrypted Data Non-Final OA Pure Storage, Inc.
19376996 Using Fixed-Weight Language Models to Create and Interact with a Retrieval Index Non-Final OA Microsoft Technology Licensing, LLC
18942934 METHODS AND DEVICES FOR QUERY SPLITTING BASED ON DEVICE DISPLAY DIMENSIONS Non-Final OA Shopify Inc.

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Frequently Asked Questions

What is examiner Yu Zhao's allowance rate?

52.6% of resolved applications examined by Yu Zhao were allowed (369 resolved cases), compared with 72.5% across Art Unit 2161 over the last five years.

Does an interview help with examiner Yu Zhao?

This examiner's interview lift is +40.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Yu Zhao take to allow a patent?

Applications allowed by Yu Zhao took 1,515 days on average from filing to allowance.

Which art unit does examiner Yu Zhao work in?

Yu Zhao examines applications in Art Unit 2161 in Tech Center 2100 (Computing & Software).

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