Prosecution Insights
Last updated: April 19, 2026

Examiner: SIPPEL, RACHEL T

Tech Center 3700 • Art Units: 3771 3785

This examiner grants 53% of resolved cases

Performance Statistics

52.6%
Allow Rate
-17.4% vs TC avg
834
Total Applications
+57.2%
Interview Lift
1418
Avg Prosecution Days
Based on 791 resolved cases, 2023–2026

Rejection Statute Breakdown

4.1%
§101 Eligibility
18.7%
§102 Novelty
46.6%
§103 Obviousness
25.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17586926 METHOD AND APPARATUS FOR RECOGNIZING GAIT TASK Final Rejection Samsung Electronics Co., Ltd.
18467576 NASAL CANNULA WITH FLOW RESTRICTOR Non-Final OA Fisher & Paykel Healthcare Limited
17442321 MUFFLER Non-Final OA Fisher & Paykel Healthcare Limited
18452144 HIP JOINT AND ANKLE CONNECTING TYPE GAIT ASSISTANCE APPARATUS Non-Final OA SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
18006273 IMPROVEMENTS IN AIR DELIVERY DEVICES Final Rejection BAE SYSTEMS plc
18474550 CPAP DEVICE Non-Final OA Murata Manufacturing Co., Ltd.
17982720 MASK Non-Final OA Murata Manufacturing Co., Ltd.
18247357 FACE MASK Non-Final OA KING'S COLLEGE LONDON
18559089 SYSTEM AND METHOD FOR LIMB COMPRESSION Non-Final OA Roger TSANG
18288761 PORTABLE COMBINED INHALATION DEVICE SUITABLE FOR VIALS Non-Final OA CHANGZHOU ZHENGYUAN MEDICAL TECHONLOGY CO., LTD.
17964392 VOICE PROSTHESIS WITH UMBRELLA VALVE Non-Final OA Freudenberg Medical, LLC
18551376 MASK WITH ANTI-FOGGING CONSTRUCTION Non-Final OA AETHER MASK, LLC
18282735 FILTER DEVICE FOR CLEANING AIR, EMBODIED AS A FACE MASK Non-Final OA Universität Kassel
18319107 WEARABLE GARMENT FOR MUSCLE STIMULATION Non-Final OA Villanova University
18029704 BRUSH Non-Final OA BELEGA Co., Ltd.
18028087 MASK Non-Final OA Gator Cases, Inc.
18016646 SLEEP ASSISTING DEVICE AND METHOD OF CONTROLLING SLEEP ASSISTING DEVICE Non-Final OA NYX INC.
18002737 ACCESSORY DEVICE FOR FACE COVERINGS Final Rejection I.T.P. S.R.L. INNOVATION & TECHNOLOGY PROVIDER
18001288 HIGH QUALITY MASK Final Rejection NANA PRODUCTS LLC
17994293 AIR PURIFICATION APPARATUS FOR NASAL APPLICATION AND ASSOCIATED CASE Non-Final OA James L. Orrington, II D.D.S., P.C.
17982355 AIR PURIFICATION APPARATUS FOR NASAL APPLICATION Non-Final OA James L. Orrington, II D.D.S., P.C.
17923511 ENDOTRACHEAL TUBE CUFF WITH INTEGRATED SENSORS Non-Final OA Arkansas Children's Hospital Research Institute
17642627 RESPIRATOR DEVICES WITH SENSORS, AND ASSOCIATED SYSTEMS AND METHODS Non-Final OA Hamish Jock GRAHAM

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