Prosecution Insights
Last updated: October 26, 2026

Yingying Zhou, USPTO Patent Examiner

Listed by the USPTO as ZHOU, YINGYING

Tech Center 3600 • Art Units: 3685 3697

This examiner grants 48% of resolved cases

Analysis

ZHOU, YINGYING is assigned to Tech Center 3600 and Art Unit 3685. The profile contains 195 resolved cases and an allowance rate of 48.2%. The median time to allowance is 1398 days, so applicants should account for extended prosecution when setting portfolio, licensing, and product timelines.

The interview lift is 45.8%, a substantial association with allowance outcomes in this record. Interview preparation may therefore deserve early attention, with a clear presentation of claim scope and proposed distinctions. The represented organizations include 2BC Innovations LLC, Uphold Global Foundation, and Wells Fargo Bank, N.A. The listed firms are Chhabra Law Firm, PC (NPA), DENTONS Durham Jones Pinegar, and FENWICK & WEST LLP.

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

Performance Statistics

48.2%
Allow Rate
-3.8% vs TC avg
218
Total Applications
+45.8%
Interview Lift
1398
Avg Prosecution Days
Based on 195 resolved cases, 2023–2026

Rejection Statute Breakdown

27.8%
§101 Eligibility
9.3%
§102 Novelty
33.7%
§103 Obviousness
26.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19663855 PROCESSING A CONTINGENT ACTION TOKEN SECURELY Non-Final OA 2BC Innovations, LLC
19410216 INFRASTRUCTURE FOR MAINTAINING MATH-BASED CURRENCY ACCOUNTS Final Rejection Wells Fargo Bank, N.A.
18598547 COMMUNICATION METHOD AND APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Yingying Zhou's allowance rate?

48.2% of resolved applications examined by Yingying Zhou were allowed (195 resolved cases), compared with 40.6% across Art Unit 3685 over the last five years.

Does an interview help with examiner Yingying Zhou?

This examiner's interview lift is +45.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Yingying Zhou take to allow a patent?

Applications allowed by Yingying Zhou took 1,398 days on average from filing to allowance.

Which art unit does examiner Yingying Zhou work in?

Yingying Zhou examines applications in Art Unit 3685 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month