Prosecution Insights
Last updated: October 02, 2026

Examiner: HU, ANN M

Tech Center 3700 • Art Units: 3774 3783

This examiner grants 68% of resolved cases

Analysis

Ann M. Hu works in Art Unit 3774 of Tech Center 3700. The examiner has 952 resolved cases and an allowance rate of 67.8%. This indicates the frequency with which applications reach allowance. The median days to allowance is 1366, which is a significant factor for applicants to consider. With 952 resolved cases, the data provides a very reliable statistical profile.

The interview lift is 21.6%, suggesting that interviews are a helpful strategy for improving the 67.8% allowance rate. Direct communication can resolve issues and lead to a grant more effectively. The 1366 median days to allowance indicates that the process can be lengthy. Practitioners should use the 21.6% lift to help navigate the 67.8% allowance rate and potentially achieve a successful outcome during the 1366 median days to allowance.

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

Performance Statistics

67.8%
Allow Rate
-2.2% vs TC avg
1,007
Total Applications
+21.6%
Interview Lift
1366
Avg Prosecution Days
Based on 952 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
27.0%
§102 Novelty
48.1%
§103 Obviousness
17.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18606432 DELIVERY SYSTEM COMMISSURAL ALIGNMENT MARKERS Non-Final OA BOSTON SCIENTIFIC SCIMED, INC.
18160004 CONTROLLED INGROWTH FEATURE FOR ANTIMIGRATION Non-Final OA BOSTON SCIENTIFIC SCIMED, INC.
18967458 METHODS, SYSTEMS AND DEVICES FOR PRE-OPERATIVELY PLANNED ADAPTIVE GLENOID IMPLANTS Final Rejection Stryker European Operations Limited
18675322 HUMERAL IMPLANT ANCHOR SYSTEM Non-Final OA HOWMEDICA OSTEONICS CORP.
17961489 SYSTEMS, DEVICES, AND METHODS TO PREVENT AUTO AND XENO GRAFT FAILURE Final Rejection The Board of Trustees of the Leland Stanford Junior University
19349704 EXPANDABLE SHEATH AND METHODS OF USING THE SAME Non-Final OA EDWARDS LIFESCIENCES CORPORATION
18649428 CATHETER BALLOON HAVING SEGMENTS OF VARYING COMPLIANCE Non-Final OA EDWARDS LIFESCIENCES CORPORATION
17909501 LEAFLET ATTACHMENT MECHANISM AND STRAIGHT ATTACHMENT STRUTS Final Rejection Edwards Lifesciences Corporation
17892654 HYBRID FRAME FOR PROSTHETIC HEART VALVE Final Rejection Edwards Lifesciences Corporation
18696138 STENT AND METHOD FOR SECURING AIR FLOW BY RELIEVING STENOSIS OF RESPIRATORY ORGAN Non-Final OA REGENTS OF THE UNIVERSITY OF MINNESOTA
18033052 Volitional Walking Controller Non-Final OA UNIVERSITY OF UTAH RESEARCH FOUNDATION
18444401 PROSTHETIC HAND SYSTEM WITH AN INTEGRATED IMAGE RECOGNITION SUBSYSTEM Non-Final OA Purdue Research Foundation
18043519 FLARED PROSTHETIC CARDIAC VALVE DELIVERY DEVICES AND SYSTEMS Non-Final OA SHIFAMED HOLDINGS, LLC
18099018 ENDOVASCULAR STENT GRAFT HAVING GATE AND IMPLANT JOINING LINER Final Rejection Medtronic Vascular, Inc.
17729584 SURGERY DEVICE WITH PATIENT-SPECIFIC FIBULA MALLEOLUS CAP Final Rejection The University of Hong Kong
18773381 Engineered Sterile Cartilage Implant Plug(s) With Sterile, Specific Instrument Kit(s) Non-Final OA In2Bones USA, LLC
18442480 ENGINEERED STERILE CARTILAGE IMPLANT PLUG(S) WITH STERILE, SPECIFIC INSTRUMENT KIT(S) Non-Final OA In2Bones USA, LLC
18089902 ENGINEERED STERILE CARTILAGE IMPLANT PLUG(S) WITH STERILE, SPECIFIC INSTRUMENT KIT(S) Non-Final OA In2Bones USA, LLC
17064483 OSTEOCHONDRAL/SUBCHONDRAL TREATMENT SYSTEM Final Rejection In2Bones USA, LLC
18363238 STENT Final Rejection Japan Lifeline Co., Ltd.

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