Prosecution Insights
Last updated: October 27, 2026

John Denny Li, USPTO Patent Examiner

Listed by the USPTO as LI, JOHN DENNY

Tech Center 3700 • Art Units: 3793 3798

This examiner grants 63% of resolved cases

Analysis

LI, JOHN DENNY works in Tech Center 3700 and Art Unit 3793. His record includes 266 resolved cases, a 63.2% allowance rate, and a median of 1206 days to allowance. Interviews show a 48.4% lift, making direct discussion a significant consideration when counsel can identify concrete paths to overcome examination concerns.

Representative companies include Canon Inc., GE Precision Healthcare LLC, and Stryker Corporation. The leading firms are OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., ARENTFOX SCHIFF LLP, and BUCHANAN, INGERSOLL & ROONEY PC. The profile supports combining interview preparation with precise written amendments and planning for extended prosecution.

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

Performance Statistics

63.2%
Allow Rate
-6.8% vs TC avg
313
Total Applications
+48.4%
Interview Lift
1206
Avg Prosecution Days
Based on 266 resolved cases, 2023–2026

Rejection Statute Breakdown

6.3%
§101 Eligibility
12.6%
§102 Novelty
48.0%
§103 Obviousness
30.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19365150 ULTRASOUND IMAGE PROCESSING DEVICE, ULTRASOUND DIAGNOSTIC APPARATUS, AND ULTRASOUND IMAGE PROCESSING PROGRAM Final Rejection FUJIFILM Corporation
18900093 ULTRASOUND DIAGNOSTIC APPARATUS, IMAGE PROCESSING APPARATUS, MEDICAL INFORMATION-PROCESSING APPARATUS, ULTRASOUND DIAGNOSTIC METHOD, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM Final Rejection Canon Kabushiki Kaisha
18869791 Alert System Behavior Based On Localization Awareness Non-Final OA Stryker Corporation
19225986 Medical Sensing Devices and Systems Final Rejection Bard Access Systems, Inc.
18427567 VISUALIZATION, NAVIGATION, AND PLANNING WITH ELECTROMAGNETIC NAVIGATION BRONCHOSCOPY AND CONE BEAM COMPUTED TOMOGRAPHY INTEGRATED Final Rejection Covidien LP
18917521 ULTRASOUND DEVICE Final Rejection BOSTON SCIENTIFIC SCIMED, INC.
19100606 APPARATUS FOR PERFORMING NON-INVASIVE THERMODILUTION Final Rejection KONINKLIJKE PHILIPS N.V.
18697832 IMPROVING CARDIAC ULTRASOUND IMAGING Non-Final OA KONINKLIJKE PHILIPS N.V.
18776420 ULTRASOUND DIAGNOSTIC APPARATUS, NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING ULTRASOUND DIAGNOSTIC PROGRAM, AND INFORMATION DISPLAY METHOD OF ULTRASOUND DIAGNOSTIC APPARATUS Final Rejection Konica Minolta, Inc.
18516762 PROBABILISTIC HR PREDICTION FOR COMPUTED TOMOGRAPHY Non-Final OA GE Precision Healthcare LLC
16753076 IMAGE TO WORLD REGISTRATION FOR MEDICAL AUGMENTED REALITY APPLICATIONS USING A WORLD SPATIAL MAP Non-Final OA THE JOHNS HOPKINS UNIVERSITY
19382191 TECHNIQUES FOR TEMPERATURE MEASUREMENT ACCORDING TO A CALIBRATED TEMPERATURE Non-Final OA Oura Health Oy
19157185 System and Method for Ultrasound Tomography Guided Localized Mild Hyperthermia (MHTh) Using a Common Closed Geometry Transducer Non-Final OA University of Rochester
18705368 SYSTEM AND METHOD FOR INTRAOPERATIVE LIFETIME IMAGING Non-Final OA The General Hospital Corporation
18982472 SMART, VIDEO-BASED JOINT DISTRACTOR POSITIONING SYSTEM Non-Final OA Smith & Nephew Asia Pacific Pte. Limited
18860498 CONTINUOUS BLOOD FLOW VISUALIZATION WITH LASER SPECKLE CONTRAST IMAGING Final Rejection BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
19247721 CATHETER ASSEMBLY MOTION DETECTION INCLUDING PROLAPSE DETECTION Final Rejection Imperative Care, Inc.
18630474 SYSTEM AND METHOD FOR ILLUSTRATING A POSE OF AN OBJECT Non-Final OA Medtronic Navigation, Inc.
19211898 SYSTEMS AND METHODS FOR CONTROLLING VISUALIZATION OF ULTRASOUND IMAGE DATA Non-Final OA Clarius Mobile Health Corp.

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Frequently Asked Questions

What is examiner John Denny Li's allowance rate?

63.2% of resolved applications examined by John Denny Li were allowed (266 resolved cases), compared with 48.7% across Art Unit 3793 over the last five years.

Does an interview help with examiner John Denny Li?

This examiner's interview lift is +48.4 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 Denny Li take to allow a patent?

Applications allowed by John Denny Li took 1,206 days on average from filing to allowance.

Which art unit does examiner John Denny Li work in?

John Denny Li examines applications in Art Unit 3793 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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