Prosecution Insights
Last updated: October 27, 2026

Jing Rui Ou, USPTO Patent Examiner

Listed by the USPTO as OU, JING RUI

Tech Center 3700 • Art Units: 3731 3771 3773

This examiner grants 54% of resolved cases

Analysis

OU, JING RUI is assigned to Tech Center 3700 and Art Unit 3731. The record covers 795 resolved cases, with an allowance rate of 53.5%. The median time to allowance is 1575 days. Interview lift is 51.6%, indicating a pronounced positive association between interviews and allowance outcomes in the recorded cases.

The listed companies are Arthrex Inc., W. L. Gore & Associates Inc., and Edwards Lifesciences Corporation. The firms are Faegre Drinker Biddle & Reath LLP - W.L. Gore, CARLSON, GASKEY & OLDS, P.C., and FENWICK & WEST LLP. Practitioners may give interview preparation substantial attention, while planning around the reported median duration and the allowance rate.

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

Performance Statistics

53.5%
Allow Rate
-16.5% vs TC avg
838
Total Applications
+51.6%
Interview Lift
1575
Avg Prosecution Days
Based on 795 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
24.0%
§102 Novelty
42.8%
§103 Obviousness
26.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17815677 EMBOLIC MATERIAL DELIVERY DEVICE AND RELATED TECHNOLOGY Final Rejection Covidien LP
18760588 SURGICAL INSTRUMENT WITH FLEXIBLE SHAFT AND ACTUATION ELEMENT GUIDE Non-Final OA INTUITIVE SURGICAL OPERATIONS, INC.
19097142 SURGICAL INSTRUMENT WITH LOCKING ARTICULATION DRIVE WHEEL Non-Final OA Cilag GmbH International
19234973 LYMPHANGIOGENESIS INDUCING DEVICE Non-Final OA Terumo Kabushiki Kaisha
17988352 FUNCTIONALIZED SYNTHETIC SURGICAL MESH Non-Final OA BAXTER HEALTHCARE SA
18979243 CONTROL HANDLE WITH A LOCKING MECHANISM FOR CONTROLLING FUNCTIONS OF A DELIVERY SYSTEM FOR IMPLANTING A MEDICAL DEVICE Non-Final OA BIOTRONIK SE & Co. KG
19217891 SYSTEM AND METHOD FOR TRANSAORTIC DELIVERY OF A PROSTHETIC HEART VALVE Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18940674 PERICARDIAL TRANSECTION DEVICES AND METHODS Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18419862 LOCKING FERRULES FOR PERFORMING TENSIONABLE KNOTLESS SURGICAL PROCEDURES Final Rejection ARTHREX, INC.
18420100 SYSTEMS AND METHODS FOR PERFORMING TENSIONABLE KNOTLESS CARDIAC VALVE PROCEDURES Non-Final OA ARTHREX, INC.
18419722 SLANTED LOCKING FERRULES FOR PERFORMING TENSIONABLE KNOTLESS CARDIAC VALVE PROCEDURES Final Rejection ARTHREX, INC.
17866776 INTERATRIAL SHUNTING DEVICES, SYSTEMS AND METHODS Final Rejection Medtronic, Inc.
17604677 METHOD AND DEVICE FOR ACUTE TREATMENT OF FLUID OVERLOAD IN PATIENTS WITH HEART FAILURE Final Rejection W. L. Gore & Associates, Inc.
17427383 REMOTELY ADJUSTABLE MECHANISM AND ASSOCIATED SYSTEMS AND METHODS Final Rejection W. L. Gore & Associates, Inc.
16827259 SLEEVES FOR EXPANDABLE MEDICAL DEVICES Non-Final OA W. L. Gore & Associates, Inc.
19170124 ASSEMBLY AND METHOD FOR THE PREPARATION OF A WOUND DRESSING Non-Final OA REDDRESS LTD.
18041340 Fistula Formation Devices And Methods Non-Final OA Bard Peripheral Vascular, Inc.
18131140 INCIDENTAL DUROTOMY CLOSURE SYSTEM AND METHOD Final Rejection THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS

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Frequently Asked Questions

What is examiner Jing Rui Ou's allowance rate?

53.5% of resolved applications examined by Jing Rui Ou were allowed (795 resolved cases), compared with 63.1% across Art Unit 3731 over the last five years.

Does an interview help with examiner Jing Rui Ou?

This examiner's interview lift is +51.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Jing Rui Ou take to allow a patent?

Applications allowed by Jing Rui Ou took 1,575 days on average from filing to allowance.

Which art unit does examiner Jing Rui Ou work in?

Jing Rui Ou examines applications in Art Unit 3731 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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