Prosecution Insights
Last updated: May 29, 2026

Examiner: DITMER, KATHRYN ELIZABETH

Tech Center 3700 • Art Units: 3764 3778 3782 3785

This examiner grants 58% of resolved cases

Performance Statistics

57.9%
Allow Rate
-12.1% vs TC avg
810
Total Applications
+49.3%
Interview Lift
1292
Avg Prosecution Days
Based on 753 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
9.5%
§102 Novelty
78.5%
§103 Obviousness
10.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17222452 EMERGENCY OXYGEN SYSTEM FOR AIRCRAFT PASSENGERS Final Rejection B/E Aerospace Systems GmbH
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
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
18042790 BREATHING APPARATUS AND CHARGING SYSTEM Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
17762248 INHALER ARTICLE WITH A TWISTED DISTAL END ELEMENT Final Rejection PHILIP MORRIS PRODUCTS S.A.
17572894 VALVE ASSEMBLY, VENTILATOR, PROCESS FOR OPERATING A VALVE ASSEMBLY, AND COMPUTER PROGRAM Non-Final OA Drägerwerk AG & Co. KGaA
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
18457277 HEAT AND MOISTURE EXCHANGER DEVICE FOR A PATIENT INTERFACE Non-Final OA ResMed Pty Ltd
17875103 WIRE HEATED TUBE WITH TEMPERATURE CONTROL SYSTEM, TUBE TYPE DETECTION, AND ACTIVE OVER TEMPERATURE PROTECTION FOR HUMIDIFIER FOR RESPIRATORY APPARATUS Final Rejection 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
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.
18167471 PROTECTIVE MASK Final Rejection 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
17656108 BREATHING REGULATOR WITH DYNAMIC DILUTION CONTROL Final Rejection Cobham Mission Systems Orchard Park Inc.
17644830 DEVICE FOR DIAGNOSING THE EFFICACY OF VENTILATION OF A PATIENT AND METHOD FOR DETERMINING THE VENTILATORY EFFICACY OF A PATIENT Non-Final OA CENTRE HOSPITALIER REGIONAL UNIVERSITAIRE DE BESANCON

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month