Prosecution Insights
Last updated: October 27, 2026

Mishal Zahra Hussain, USPTO Patent Examiner

Listed by the USPTO as HUSSAIN, MISHAL ZAHRA

Tech Center 3700 • Art Units: 3772 3785

This examiner grants 65% of resolved cases

Analysis

HUSSAIN, MISHAL ZAHRA is assigned to art unit 3772 in tech center 3700, with 54 resolved cases. The allowance rate is 64.8%, and the median time to allowance is 1320 days. The limited record warrants care in generalizing, while the timeline indicates that applicants should allow for extended prosecution.

The interview lift is 39.6%, a substantial signal relative to the 64.8% allowance rate. Practitioners may consider interview preparation an important part of response planning, especially when narrowing the issues can support efficient written amendments. The listed companies are 3M Innovative Properties Company, Fisher & Paykel Healthcare Limited, and RESMED Pty Ltd. The listed firms are Via LLP, Abel Schillinger, LLP, and Botos Churchill IP Law LLP-RMD.

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

Performance Statistics

64.8%
Allow Rate
-5.2% vs TC avg
95
Total Applications
+39.6%
Interview Lift
1320
Avg Prosecution Days
Based on 54 resolved cases, 2023–2026

Rejection Statute Breakdown

2.6%
§101 Eligibility
25.5%
§102 Novelty
51.5%
§103 Obviousness
19.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18252971 METHOD AND APPARATUS FOR MAINTAINING AIRFLOW IN A POWERED AIR PURIFYING RESPIRATOR Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
18041888 SEALING STRIP, RESPIRATOR, AND METHOD FOR MANUFACTURING SEALING STRIP Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
18751838 NON-SEALING HIGH FLOW THERAPY DEVICE AND RELATED METHODS Non-Final OA ResMed Pty Ltd
18843713 ORAL CAVITY CLEANING DEVICE Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
17683280 SENSING SYSTEM FOR EXOSUITS Non-Final OA X Development LLC
18848301 MASSAGE DEVICE Non-Final OA AISIN CORPORATION
18869028 ARTICLE FOR DRY POWDER INHALER WITH INDICIA ON UPSTREAM END Non-Final OA PHILIP MORRIS PRODUCTS S.A.
18837328 POSITIVE PRESSURE BREATHING CIRCUIT Non-Final OA Fisher & Paykel Healthcare Limited
18262720 HEADGEAR FOR A RESPIRATORY INTERFACE Final Rejection Fisher & Paykel Healthcare Limited
17917413 CONTROL METHOD FOR MEDICAL VENTILATORS Final Rejection Imperial College Innovations Limited
18723908 COUNTER STRUCTURE OF DRY POWDER AEROSOL DELIVERY SYSTEM Non-Final OA SHANGHAI XIUXIN CHENPON PHARMACEUTICAL CO., LTD.
18120074 HIGH-FILTRATION REUSABLE FACE MASK WITH TEXTURED CONTACT PORTION AND VARIOUS COUPLING MECHANISMS Non-Final OA Teal Bio, Inc.

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Frequently Asked Questions

What is examiner Mishal Zahra Hussain's allowance rate?

64.8% of resolved applications examined by Mishal Zahra Hussain were allowed (54 resolved cases), compared with 39.7% across Art Unit 3772 over the last five years.

Does an interview help with examiner Mishal Zahra Hussain?

This examiner's interview lift is +39.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mishal Zahra Hussain take to allow a patent?

Applications allowed by Mishal Zahra Hussain took 1,320 days on average from filing to allowance.

Which art unit does examiner Mishal Zahra Hussain work in?

Mishal Zahra Hussain examines applications in Art Unit 3772 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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