Prosecution Insights
Last updated: October 26, 2026

Hanna Chong, USPTO Patent Examiner

Listed by the USPTO as CHONG, HANNA

Tech Center 4100 • Art Units: 2421 2426 4100

This examiner grants 100% of resolved cases

Analysis

CHONG, HANNA is assigned to Tech Center 4100 and Art Unit 2421. The record contains 1 resolved case, a 100.0% allowance rate, and a median of 514 days to allowance. Interview lift is 0.0%, so the reported record does not show an allowance association for interviews.

The companies represented are Beijing Zitiao Network Technology Co., Ltd., Inflab Inc., and 17LIVE Japan Inc. The listed firms are BakerHostetler, HDLS IPR SERVICES, and Studebaker Brackett PLLC. With only 1 resolved case, these figures provide limited predictive guidance. Practitioners should use the profile as an initial reference rather than as a stable indicator of examination behavior.

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

Performance Statistics

100.0%
Allow Rate
+40.0% vs TC avg
12
Total Applications
+0.0%
Interview Lift
514
Avg Prosecution Days
Based on 1 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
28.6%
§102 Novelty
52.4%
§103 Obviousness
19.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19469562 LIVE STREAM DATA PROCESSING METHOD AND DEVICE, AND STORAGE MEDIUM Non-Final OA Beijing Zitiao Network Technology Co., Ltd.
19112141 METHOD, APPARATUS, DEVICE, COMPUTER READABLE STORAGE MEDIUM AND PRODUCT OF INFORMATION DISPLAY Non-Final OA Beijing Zitiao Network Technology Co., Ltd.

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Frequently Asked Questions

What is examiner Hanna Chong's allowance rate?

100.0% of resolved applications examined by Hanna Chong were allowed (1 resolved cases), compared with 66.7% across Art Unit 2421 over the last five years.

Does an interview help with examiner Hanna Chong?

This examiner's interview lift is +0.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hanna Chong take to allow a patent?

Applications allowed by Hanna Chong took 514 days on average from filing to allowance.

Which art unit does examiner Hanna Chong work in?

Hanna Chong examines applications in Art Unit 2421 in Tech Center 4100.

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