Prosecution Insights
Last updated: October 27, 2026

Justin Che-Chun Tong, USPTO Patent Examiner

Listed by the USPTO as TONG, JUSTIN CHE-CHUN

Tech Center 6200 • Art Units: 2100 2196 6213

This examiner grants 46% of resolved cases

Analysis

TONG, JUSTIN CHE-CHUN is assigned to tech center 6200 and art unit 2100. The profile contains 33 resolved cases, with a 45.5% allowance rate and a median of 1249 days to allowance. The interview lift is 32.7%, making examiner interviews a potentially important component of prosecution strategy despite the limited case record.

Representative companies are Dell Products L.P., Advanced Micro Devices Inc., and The Toronto-dominion Bank. The listed firms are AMIN, TUROCY & WATSON, LLP, Hanley, Flight and Zimmerman, LLC, and Hopewell IP, P.C. The small number of resolved cases warrants caution when using the metrics to predict an individual application outcome.

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

Performance Statistics

45.5%
Allow Rate
-14.5% vs TC avg
63
Total Applications
+32.7%
Interview Lift
1249
Avg Prosecution Days
Based on 33 resolved cases, 2023–2026

Rejection Statute Breakdown

21.5%
§101 Eligibility
17.1%
§102 Novelty
45.8%
§103 Obviousness
12.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18903771 OPTIMIZING THROUGHPUT OF MACHINE-LEARNING APPLICATIONS Non-Final OA THE TORONTO-DOMINION BANK
18938699 INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND DISPLAY METHOD Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18076366 METHODS AND APPARATUS TO SERVICE WORKLOADS LOCALLY AT A COMPUTING DEVICE Non-Final OA Intel Corporation
17891770 ASYNCHRONOUS CANCELLATION OF REQUESTS FOR PROCESSING ENGINES Final Rejection Microsoft Technology Licensing, LLC
18201702 FLEXIBLE AND AUTOMATED OBJECT MAINTENANCE BASED ON ARBITRARY OBJECT TYPES Final Rejection SAP SE
18085902 MULTI-LEVEL SCHEDULING FOR IMPROVED QUALITY OF SERVICE Final Rejection ADVANCED MICRO DEVICES, INC.
17578066 SYSTEM AND METHOD FOR SCHEDULING IN A COMPUTING SYSTEM Final Rejection Advanced Micro Devices, Inc.
18351215 LONG DURATION TASK MONITORING INSTRUMENTATION Final Rejection Dell Products L.P.
18160142 SYSTEMS AND METHODS FOR BACKEND ARCHITECTURE PROVISIONING AND EMULATION Non-Final OA Dell Products L.P.
18051303 CLUSTER MANAGEMENT PLUGIN WITH SUPPORT FOR MULTIPLE CLUSTERS AND CLUSTER MANAGERS Non-Final OA Dell Products L.P.
17966675 PARA-VIRTUALIZED DRIVERS FOR PLATFORM AND CLOUD COMPUTE MANAGEMENT Non-Final OA DELL PRODUCTS L.P.
18750799 METHODS AND SYSTEMS TO VERIFY ENTITY STATE-QUANTITY VALUES FOR ASYNCHRONOUS OPERATIONS Non-Final OA Stripe, Inc.

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 Justin Che-Chun Tong's allowance rate?

45.5% of resolved applications examined by Justin Che-Chun Tong were allowed (33 resolved cases), compared with 38.8% across Art Unit 2100 over the last five years.

Does an interview help with examiner Justin Che-Chun Tong?

This examiner's interview lift is +32.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Justin Che-Chun Tong take to allow a patent?

Applications allowed by Justin Che-Chun Tong took 1,249 days on average from filing to allowance.

Which art unit does examiner Justin Che-Chun Tong work in?

Justin Che-Chun Tong examines applications in Art Unit 2100 in Tech Center 6200.

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