Prosecution Insights
Last updated: October 27, 2026

Joy Poh Ai Chng, USPTO Patent Examiner

Listed by the USPTO as CHNG, JOY POH AI

Tech Center 3600 • Art Units: 3626 3683 3686

This examiner grants 61% of resolved cases

Analysis

Joy Poh Ai Chng examines cases in Art Unit 3626 within Tech Center 3600, where she has managed 635 resolved cases. Her allowance rate of 60.6 percent is a metric for applicants. The median days to allowance of 1249 suggests a timeline for those cases that reach a grant. This duration indicates that the prosecution process involves a long-term commitment from the applicant and requires a patient approach to achieve success.

The data highlights an interview lift of 19.0 percent, indicating that interviews are a tool for resolving prosecution issues. This lift suggests that verbal engagement can enhance the 60.6 percent baseline allowance rate. Her top corporate applicants include Rom Technologies Inc., Canon Inc., and Kyung Hee University Industry Cooperation Group. Legal work is often handled by firms such as Dickinson Wright PLLC - Washington DC, Ahmann Kloke LLP, and CALDWELL LLC. The 19.0 percent lift is a strategic option for these firms to consider when navigating the 1249-day median timeline.

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

Performance Statistics

60.6%
Allow Rate
+8.6% vs TC avg
670
Total Applications
+19.0%
Interview Lift
1249
Avg Prosecution Days
Based on 635 resolved cases, 2023–2026

Rejection Statute Breakdown

31.9%
§101 Eligibility
9.7%
§102 Novelty
33.9%
§103 Obviousness
14.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19004637 DATA PROCESSING APPARATUS AND METHOD Non-Final OA CANON KABUSHIKI KAISHA
19298848 SYSTEM AND METHOD FOR USING AI/ML AND TELEMEDICINE FOR INVASIVE SURGICAL TREATMENT TO DETERMINE A CARDIAC TREATMENT PLAN THAT USES AN ELECTROMECHANICAL MACHINE Non-Final OA ROM Technologies, Inc.
19275259 SYSTEM AND METHOD FOR USING AI/ML TO GENERATE TREATMENT PLANS TO STIMULATE PREFERRED ANGIOGENESIS Non-Final OA ROM Technologies, Inc.
19275187 SYSTEM AND METHOD FOR USING AI ML AND TELEMEDICINE TO PERFORM BARIATRIC REHABILITATION VIA AN ELECTROMECHANICAL MACHINE Non-Final OA ROM Technologies, Inc.
19296145 RAG-ENHANCED PROBLEM SOLVING FOR MEDICAL DECISION MAKING Non-Final OA NEC Laboratories America, Inc.
19177338 SYSTEMS AND METHODS OF EFFICIENTLY PERFORMING BIOLOGICAL ASSAYS Non-Final OA Becton, Dickinson and Company
19006155 CLASSIFICATION OF INSTERSTITIAL LUNG DISEASE Non-Final OA UNIVERSITY OF VIRGINIA PATENT FOUNDATION

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner Joy Poh Ai Chng's allowance rate?

60.6% of resolved applications examined by Joy Poh Ai Chng were allowed (635 resolved cases), compared with 24.6% across Art Unit 3626 over the last five years.

Does an interview help with examiner Joy Poh Ai Chng?

This examiner's interview lift is +19.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Joy Poh Ai Chng take to allow a patent?

Applications allowed by Joy Poh Ai Chng took 1,249 days on average from filing to allowance.

Which art unit does examiner Joy Poh Ai Chng work in?

Joy Poh Ai Chng examines applications in Art Unit 3626 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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