Prosecution Insights
Last updated: April 19, 2026

Examiner: DITMER, KATHRYN ELIZABETH

Tech Center 3700 • Art Units: 3764 3778 3782 3785

This examiner grants 58% of resolved cases

Performance Statistics

57.7%
Allow Rate
-12.3% vs TC avg
805
Total Applications
+49.8%
Interview Lift
1302
Avg Prosecution Days
Based on 742 resolved cases, 2023–2026

Rejection Statute Breakdown

1.9%
§101 Eligibility
18.8%
§102 Novelty
39.4%
§103 Obviousness
29.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18042790 BREATHING APPARATUS AND CHARGING SYSTEM Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
17730774 INTEGRATED DISPLAY FOR SEALED FACE MASKS Non-Final OA Federal Express Corporation
18474965 SPIRALLY REINFORCED TUBES FOR MEDICAL SYSTEMS Non-Final OA Fisher & Paykel Healthcare Limited
17804698 NASAL CANNULA, CONDUIT AND SECUREMENT SYSTEM Final Rejection Fisher & Paykel Healthcare Limited
17310155 ADJUSTABLE EXPIRATORY RELIEF IN RESPIRATORY THERAPY Non-Final OA Fisher & Paykel Healthcare Limited
17053331 MEDICAL COMPONENTS WITH THERMOPLASTIC MOLDINGS BONDED TO SUBSTRATES Final Rejection FISHER & PAYKEL HEALTHCARE LIMITED
18299847 SMART PRESSURE REGULATOR FOR AIRCRAFT OXYGEN SYSTEM Non-Final OA B/E AEROSPACE, INC.
18335494 VENTILATION TRIGGERING Non-Final OA Covidien LP
17596705 SENSOR MODULE AND METHOD FOR DETERMINING AN AEROSOL DOSE RATE Final Rejection Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
17331973 FILTER UNIT WITH A RIGID FILTER AND A FLEXIBLE JACKET AND METHODS FOR MANUFACTURING SUCH A FILTER Final Rejection Dräger Safety AG & Co. KGaA
17768055 MANUAL RESPIRATORY RESUSCITATION SYSTEM Final Rejection University of Pittsburgh - Of the Commonwealth System of Higher Education
17371460 VACCINE ADMINISTRATION APPARATUS AND SINGLE DOSE CHAMBERS Non-Final OA Stamford Devices Limited
18582805 WIRE HEATED TUBE WITH TEMPERATURE CONTROL SYSTEM, TUBE TYPE DETECTION, AND ACTIVE OVER TEMPERATURE PROTECTION FOR HUMIDIFIER FOR RESPIRATORY APPARATUS Non-Final OA ResMed Pty Ltd
18150421 POWER SUPPLY FOR RESPIRATORY THERAPY DEVICE Non-Final OA ResMed Pty Ltd
18025491 APPARATUS FOR AGITATION OF MEDICAMENT FORMULATION Non-Final OA KINDEVA DRUG DELIVERY L.P.
18407016 FACE MASK AND SHIELD COMBINATION Final Rejection Aver Technologies, Inc.
17428706 APPARATUSES AND METHODS FOR CONTROLLING TEMPERATURE IN AN INHALER DEVICE Final Rejection Syqe Medical Ltd.
18371097 Nasal Cannula With at Least One Valve Final Rejection OXFO Corporation
18281745 WEARABLE PROTECTIVE GEAR Non-Final OA TESTA TECHNOLOGIES T.T. LTD
18281346 COMPOSITIONS AND METHODS FOR TREATING X-LINKED MYOTUBULAR MYOPATHY Non-Final OA AUDENTES THERAPEUTICS, INC.
18223426 REACTIVATION OF AND RESTORATION OF ELECTRICAL SIGNALING BY NEURONS INVOLVED IN CONTROLLING BRAIN FUNCTION Non-Final OA Anecare, LLC
18271669 Method and ventilator for treating alcohol intoxication by supplying gases based on gas mixing ratio Non-Final OA GUANGZHOU LANSWICK MEDICAL TECHNOLOGY CO., LTD.
18323034 NEONATAL AND PEDIATRIC NASAL CANNULA Non-Final OA NSPIRE CO
18298507 ENDOTRACHEAL TUBE WITH RESISTANT MEMBER, SLEEVE AND EXPANDABLE CUFF Non-Final OA BRYAN MEDICAL, INC.
18020530 UNIT DOSE DRY POWDER INHALER WITH BLISTER CAVITY INCLUDING A BOWL, CHANNEL AND TUBE Final Rejection VECTURA DELIVERY DEVICES LIMITED
17222452 EMERGENCY OXYGEN SYSTEM FOR AIRCRAFT PASSENGERS Final Rejection B/E Aerospace Systems GmbH
18167471 PROTECTIVE MASK Non-Final OA DISPOSITIVI PROTEZIONE INDIVIDUALE D.P.I. s.r.l.
17909364 ADJUSTABLE AIRWAY STABILIZATION SYSTEM FOR PATIENT FACIAL GEOMETRIES OF VARIOUS SIZES AND FOR PEDIATRIC AND NEONATAL APPLICATIONS Final Rejection Securisyn Medical, LLC
17740820 VENTILATION APPARATUS FOR AIRCRAFT Final Rejection Aviation Works Ltd
17827065 SYSTEMS, DEVICES, AND TECHNIQUES FOR POSITIONING TUBES Non-Final OA Through the Cords, LLC

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