Prosecution Insights
Last updated: October 26, 2026

John Chunyang Kuan, USPTO Patent Examiner

Listed by the USPTO as KUAN, JOHN CHUNYANG

Tech Center 4100 • Art Units: 2127 2857 3624 3666 4100

This examiner grants 72% of resolved cases

Analysis

KUAN, JOHN CHUNYANG works in tech center 4100 and art unit 2127. The record includes 567 resolved cases and an allowance rate of 72.5%. Interview lift is 47.4%, showing a strong measured role for interviews in this profile. The median time to allowance is 1119 days, which supports early coordination between prosecution counsel, inventors, and business teams.

The leading companies are Strong Force Iot Portfolio 2016 LLC, Robert Bosch GmbH, and Saudi Arabian Oil Company. The listed firms are Antonio Ha & U.S. Patent, LLC, Boardman & Clark LLP, and DERGOSITS & NOAH LLP. Counsel may prepare detailed interview materials that distinguish the claimed system from the cited art and preserve clear written support for any amendment.

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

Performance Statistics

72.5%
Allow Rate
+12.5% vs TC avg
602
Total Applications
+47.4%
Interview Lift
1119
Avg Prosecution Days
Based on 567 resolved cases, 2023–2026

Rejection Statute Breakdown

28.4%
§101 Eligibility
9.2%
§102 Novelty
32.2%
§103 Obviousness
24.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18636334 Magnetometer Array System For Magnetically Noisy Environments Non-Final OA THE REGENTS OF THE UNIVERSITY OF MICHIGAN
18712741 UNCERTAINTY ESTIMATION FOR A POSITION RECONSTRUCTION OF SEMICONDUCTOR COMPONENTS ON A WAFER Non-Final OA Robert Bosch GmbH
18696218 MEMORY PERFORMANCE EVALUATION USING ADDRESS MAPPING INFORMATION Non-Final OA Micron Technology, Inc.
18658732 SYSTEMS AND METHODS WITH PREDICTIVE MODELS FOR ESTIMATING TUNING COEFFICIENTS OF A CLASSIFICATION YARD Non-Final OA BNSF Railway Company
18626303 APPARATUS AND METHOD FOR OPTIMIZING SUBSURFACE VELOCITY MODEL Non-Final OA Seoul National University R&DB Foundation
18637862 SYSTEM MANAGEMENT INTERRUPT TELEMETRY Non-Final OA DELL PRODUCTS L.P.
18028319 METHODS AND TOOLS FOR SUPPORTING TIMING OF CONCRETE PROCESSING OPERATIONS Final Rejection HUSQVARNA AB

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Frequently Asked Questions

What is examiner John Chunyang Kuan's allowance rate?

72.5% of resolved applications examined by John Chunyang Kuan were allowed (567 resolved cases), compared with 46.8% across Art Unit 2127 over the last five years.

Does an interview help with examiner John Chunyang Kuan?

This examiner's interview lift is +47.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner John Chunyang Kuan take to allow a patent?

Applications allowed by John Chunyang Kuan took 1,119 days on average from filing to allowance.

Which art unit does examiner John Chunyang Kuan work in?

John Chunyang Kuan examines applications in Art Unit 2127 in Tech Center 4100.

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