Prosecution Insights
Last updated: October 26, 2026

Boniface N Nganga, USPTO Patent Examiner

Listed by the USPTO as NGANGA, BONIFACE N

Tech Center 3700 • Art Units: 2852 2858 3762 3769 3773 3792 3793 3797

This examiner grants 64% of resolved cases

Analysis

NGANGA, BONIFACE N has resolved 575 cases, with an allowance rate of 64.3% and an interview lift of 28.7%. The median time to allowance is 1299 days. The substantial record supports using the allowance result as a meaningful historical reference. The interview measure indicates that examiner discussions may help clarify issues, particularly when integrated with technically specific amendments and arguments.

The examiner is in tech center 3700 and art unit 2852. The leading companies are Cilag GmbH International, Fujifilm Corporation, and Shanghai United Imaging Healthcare Co., Ltd. The leading firms are Condo Roccia Koptiw LLP, ARENTFOX SCHIFF LLP, and Artegis Law Group, LLP. The profile is relevant to medical imaging and related device portfolios.

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

Performance Statistics

64.3%
Allow Rate
-5.7% vs TC avg
606
Total Applications
+28.7%
Interview Lift
1299
Avg Prosecution Days
Based on 575 resolved cases, 2023–2026

Rejection Statute Breakdown

4.6%
§101 Eligibility
14.6%
§102 Novelty
46.0%
§103 Obviousness
28.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19201313 ULTRASOUND DIAGNOSIS SUPPORT APPARATUS AND ULTRASOUND DIAGNOSIS SUPPORT PROGRAM Non-Final OA FUJIFILM Corporation
18810208 ALIGNMENT AND DISTORTION COMPENSATION OF REFERENCE PLANES USED BY SURGICAL DEVICES Final Rejection Cilag GmbH International
19024543 SYSTEM AND METHOD FOR THE CONTACTLESS RECORDING OF VITAL PARAMETERS BY CREATING A BODY MODEL BASED ON BODY SUBDIVISION ALONG THE RADAR FIELD OF VIEW Final Rejection Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
19081138 Imaging Modality with Patient Positioning Specification Non-Final OA Siemens Healthineers AG
18179966 Focused Ultrasound Device Final Rejection Washington University

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Frequently Asked Questions

What is examiner Boniface N Nganga's allowance rate?

64.3% of resolved applications examined by Boniface N Nganga were allowed (575 resolved cases), compared with 78.8% across Art Unit 2852 over the last five years.

Does an interview help with examiner Boniface N Nganga?

This examiner's interview lift is +28.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Boniface N Nganga take to allow a patent?

Applications allowed by Boniface N Nganga took 1,299 days on average from filing to allowance.

Which art unit does examiner Boniface N Nganga work in?

Boniface N Nganga examines applications in Art Unit 2852 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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