Prosecution Insights
Last updated: April 19, 2026

Examiner: CHOI, YOUNHEE JEON

Tech Center 3700 • Art Units: 3793 3797

This examiner grants 72% of resolved cases

Performance Statistics

71.5%
Allow Rate
+1.5% vs TC avg
215
Total Applications
+49.5%
Interview Lift
1301
Avg Prosecution Days
Based on 186 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
16.8%
§102 Novelty
42.8%
§103 Obviousness
33.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18780407 CROSS-RAY ULTRASOUND TOMOGRAPHY (CRUST) METHODS AND SYSTEMS Non-Final OA California Institute of Technology
19055401 CANNULA AND STYLET REVERSER Non-Final OA Mayo Foundation for Medical Education and Research
19054896 ULTRASONIC ENDOSCOPE Non-Final OA FUJIFILM Corporation
18949957 ACOUSTIC MATCHING MEMBER AND METHOD FOR CAPTURING MEDICAL IMAGE Non-Final OA FUJIFILM Corporation
17466302 ULTRASOUND-INDUCED CONVECTION FOR DRUG DELIVERY AND TO DRIVE GLYMPHATIC OR LYMPHATIC FLOWS Final Rejection The Board of Trustees of the Leland Stanford Junior University
18426544 HYBRID TIME DOMAIN MULTIPLEXING AND FREQUENCY DOMAIN MULTIPLEXING CONFIGURATIONS FOR ULTRASOUND FETAL HEART RATE MONITORING SYSTEMS Non-Final OA GE Precision Healthcare LLC
18122802 SURGICAL SYSTEMS, METHODS, AND DEVICES EMPLOYING AUGMENTED REALITY (AR) GRAPHICAL GUIDANCE Final Rejection Depuy Synthes Products, Inc.
17920504 THREE DIMENSIONAL COLOR DOPPLER FOR ULTRASONIC VOLUME FLOW MEASUREMENT Final Rejection KONINKLIJKE PHILIPS N.V.
19100114 INTRAVASCULAR DUAL FREQUENCY SONOTHROMBOLYSIS MEDIATED WITH MICROBUBBLES/NANODROPLETS Non-Final OA The University of North Carolina at Chapel Hill
19058651 BIOPSY SITE MARKER Non-Final OA HOLOGIC, INC
18231921 BIOPSY SITE MARKER HAVING EXPANDABLE PORTION Final Rejection Devicor Medical Products, Inc.
18525882 METHOD AND SYSTEM FOR MONITORING REGURGITATION Non-Final OA WUHAN UNITED IMAGING HEALTHCARE CO., LTD.
18679440 METHOD OF MARKING LESIONS Final Rejection Cook Medical Technologies LLC
18822357 APPARATUS FOR VOLUMETRIC ULTRASOUND SCANNING Non-Final OA Rivanna Medical, Inc.
18693309 SYSTEMS, DEVICES AND METHODS FOR ULTRASOUND DETECTION OF VASCULAR HEMODYNAMIC MEASURES Non-Final OA MOONRISE MEDICAL, INC.
18205703 APPARATUS FOR MARKING AN ENTRY POINT ON THE SKIN OF A PATIENT FOR A NEEDLE BIOPSY SUPERVISED BY MAGNETIC RESONANCE Final Rejection Siemens Healthcare GmbH
18312116 MARKER FOR IDENTIFYING SURGICAL CAVITY IN TARGETED RADIATION Final Rejection The John Hopkins University

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