Prosecution Insights
Last updated: October 27, 2026

Younhee Jeon Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, YOUNHEE JEON

Tech Center 3700 • Art Units: 3793 3797

This examiner grants 72% of resolved cases

Analysis

CHOI, YOUNHEE JEON works in Tech Center 3700 and Art Unit 3793. The record contains 201 resolved cases, an allowance rate of 71.6%, and a median of 1207 days to allowance. Interview lift is 48.2%, a positive association that makes interview preparation a potentially important part of prosecution strategy for matters assigned to this examiner.

The leading companies are The University of North Carolina at Chapel Hill, Terumo Corporation, and PROCEPT BioRobotics Corporation. The listed firms are Jenkins, Taylor & Hunt, P.A., Knobbe, Martens, Olson & Bear, LLP, and DOWELL & DOWELL, P.C. The combination of positive interview lift and a lengthy median timeline supports early planning for substantive interviews and follow-up amendments.

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

Performance Statistics

71.6%
Allow Rate
+1.6% vs TC avg
234
Total Applications
+48.2%
Interview Lift
1207
Avg Prosecution Days
Based on 201 resolved cases, 2023–2026

Rejection Statute Breakdown

2.9%
§101 Eligibility
16.2%
§102 Novelty
43.8%
§103 Obviousness
34.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19265794 TARGET TISSUE MODEL DISPLAY CONTROL DEVICE AND TARGET TISSUE MODEL DISPLAY CONTROL PROGRAM Final Rejection FUJIFILM Corporation
19092963 IMAGE DIAGNOSTIC SYSTEM, IMAGE DIAGNOSTIC METHOD, AND STORAGE MEDIUM Final Rejection TERUMO KABUSHIKI KAISHA
18822884 STIFF SHEATH FOR IMAGING PROBE Non-Final OA PROCEPT BioRobotics Corporation
19276548 ULTRASOUND SYSTEM WITH DEEP LEARNING NETWORK PROVIDING REAL TIME IMAGE IDENTIFICATION Non-Final OA KONINKLIJKE PHILIPS N.V.
18480831 SENSORS AND SYSTEMS FOR DETERMINING A PHYSIOLOGICAL PARAMETER USING EXTERNAL PRESSURE Final Rejection QUALCOMM Incorporated
19055401 CANNULA AND STYLET REVERSER Final Rejection Mayo Foundation for Medical Education and Research
18205703 APPARATUS FOR MARKING AN ENTRY POINT ON THE SKIN OF A PATIENT FOR A NEEDLE BIOPSY SUPERVISED BY MAGNETIC RESONANCE Non-Final OA Siemens Healthcare GmbH

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Frequently Asked Questions

What is examiner Younhee Jeon Choi's allowance rate?

71.6% of resolved applications examined by Younhee Jeon Choi were allowed (201 resolved cases), compared with 48.7% across Art Unit 3793 over the last five years.

Does an interview help with examiner Younhee Jeon Choi?

This examiner's interview lift is +48.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Younhee Jeon Choi take to allow a patent?

Applications allowed by Younhee Jeon Choi took 1,207 days on average from filing to allowance.

Which art unit does examiner Younhee Jeon Choi work in?

Younhee Jeon Choi examines applications in Art Unit 3793 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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