Prosecution Insights
Last updated: April 19, 2026

Examiner: YANG, CHENG FONG

Tech Center 3700 • Art Units: 3781

This examiner grants 64% of resolved cases

Performance Statistics

64.1%
Allow Rate
-5.9% vs TC avg
175
Total Applications
+23.0%
Interview Lift
1155
Avg Prosecution Days
Based on 142 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
23.7%
§102 Novelty
48.1%
§103 Obviousness
20.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17956008 WOUND DRESSING Non-Final OA Smith & Nephew PLC
17771701 URINARY CATHETERS AND METHODS FOR PREVENTING BACTERIAL INFECTIONS Final Rejection Hollister Incorporated
18563852 Urinary Catheter-Insertion Kits with Integrated Instructions for Use and Methods Thereof Non-Final OA C. R. Bard, Inc.
18393164 DUAL CHAMBER MEDICAL FLUID CONTAINER WITH VENTED SUPPLY LINE CAP AND METHOD THEREFOR Non-Final OA Baxter Healthcare SA
18024781 CLOSING ELEMENT FOR A FLUID LINE Final Rejection FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
18053953 LOW-FRICTION COATINGS FOR SYRINGES AND RELATED METHODS Non-Final OA Merit Medical Systems, Inc.
18662216 FLUID COLLECTION DEVICES HAVING A COLLECTION BAG, AND RELATED SYSTEMS AND METHODS Non-Final OA PUREWICK CORPORATION
18557755 VALVE, METHOD OF MANUFACTURING A VALVE, CAP FOR A FLUID CONTAINER COMPRISING SUCH VALVE, FLUID CONTAINER COMPRISING SUCH CAP, AND METHOD FOR MANUFACTURING SUCH CAP Final Rejection B. Braun Melsungen AG
18000704 AN OSTOMY APPLIANCE Non-Final OA SALTS HEALTHCARE LIMITED
18364567 DELIVERY SYSTEM Non-Final OA Wake Forest University Health Sciences
17504408 TONGUE SPONGE FOR IMPROVING ORAL CARE Non-Final OA ORTHONU, LLC
18562401 BLOOD PURIFICATION APPARATUS Non-Final OA NIKKISO CO., LTD.
18530048 CANNISTER-FREE, VACUUM-ASSISTED EVACUATION OF EXTERNAL CATHETERS Non-Final OA PUREFLOW LLC
18527759 MULTI-LAYER COMPOSITES AND ABSORBENT ARTICLES INCLUDING THE SAME Non-Final OA FIRST QUALITY RETAIL SERVICES, LLC
18507340 NEGATIVE PRESSURE DRAINAGE SYSTEM Non-Final OA SHENZHEN BAO'AN PEOPLE'S HOSPITAL
18503021 COLLAPSIBLE CONTINGENCY URINAL Non-Final OA IRPI LLC
18288694 SYSTEMS AND MEHTODS FOR STABILIZING ANTI-MIGRATION ANCHOR SYSTEM Non-Final OA MetaModix, Inc.
18021894 Spray Device Final Rejection Medspray B.V.
18326661 SEGMENTED GASTROINTESTINAL DEVICES AND METHODS OF USE THEREOF Final Rejection Morphic Medical, Inc.
18133290 TREATMENT OF FUNGAL NAIL INFECTION Non-Final OA Distinct Dermatology Inc.
18010187 PARTITIONED CARPULE, SYRINGE, AND SYSTEM THEREFOR, AND METHODS OF USE THEREOF Final Rejection PHARMAPHDII, LLC.
17594156 SORBENT FOR USE IN RENAL THERAPY Non-Final OA Qidni Labs Inc.

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