Prosecution Insights
Last updated: October 27, 2026

Ziaul A. Chowdhury, USPTO Patent Examiner

Listed by the USPTO as CHOWDHURY, ZIAUL A.

Tech Center 2100 • Art Units: 2175 2192

This examiner grants 87% of resolved cases

Analysis

CHOWDHURY, ZIAUL A. has resolved 559 cases in Tech Center 2100 and Art Unit 2175. The allowance rate is 87.1%, while the median time to allowance is 1132 days. This combination indicates that applications reaching resolution often obtain allowance, but prosecution can extend over a substantial period.

The interview lift is 36.4%, providing a meaningful reason to treat examiner interviews as part of prosecution planning. Portfolio activity includes CrowdStrike Inc., Intel Corporation, and Siemens Aktiengesellschaft. Frequently represented firms include 2SPL Patent Attorneys, BANNER & WITCOFF, LTD, and NORTON ROSE FULBRIGHT US LLP. Practitioners may benefit from preparing focused interview positions while allowing for the recorded pendency.

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

Performance Statistics

87.1%
Allow Rate
+32.1% vs TC avg
582
Total Applications
+36.4%
Interview Lift
1132
Avg Prosecution Days
Based on 559 resolved cases, 2023–2026

Rejection Statute Breakdown

16.6%
§101 Eligibility
20.4%
§102 Novelty
52.2%
§103 Obviousness
6.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18612236 INTELLIGENT CODE INTERCEPTOR FOR GENERATING A NO-CODE AUTOMATION TEST SUITE USING GENERATIVE ARTIFICIAL INTELLIGENCE (AI) Final Rejection Bank of America Corporation
18571797 A Concept for Generating a Test Specification Final Rejection Intel Corporation
18841089 Interface Mapping Method And Apparatus Non-Final OA Siemens Aktiengesellschaft
18799255 SYSTEM AND METHOD FOR PERFORMANCE TESTING SOFTWARE PRODUCTS Non-Final OA ServiceNow, Inc.

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Frequently Asked Questions

What is examiner Ziaul A. Chowdhury's allowance rate?

87.1% of resolved applications examined by Ziaul A. Chowdhury were allowed (559 resolved cases), compared with 63.2% across Art Unit 2175 over the last five years.

Does an interview help with examiner Ziaul A. Chowdhury?

This examiner's interview lift is +36.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Ziaul A. Chowdhury take to allow a patent?

Applications allowed by Ziaul A. Chowdhury took 1,132 days on average from filing to allowance.

Which art unit does examiner Ziaul A. Chowdhury work in?

Ziaul A. Chowdhury examines applications in Art Unit 2175 in Tech Center 2100 (Computing & Software).

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