Prosecution Insights
Last updated: October 27, 2026

Nusrat Quddus, USPTO Patent Examiner

Listed by the USPTO as QUDDUS, NUSRAT

Tech Center 2800 • Art Units: 2838 2839

This examiner grants 89% of resolved cases

Analysis

QUDDUS, NUSRAT works in Tech Center 2800 and Art Unit 2838. Across 832 resolved cases, the allowance rate is 89.2%, the interview lift is 6.0%, and the median time to allowance is 927 days. The high allowance result is accompanied by the smallest positive interview association in this profile, suggesting that interviews are not central to the observed outcome.

Chengdu Monolithic Power Systems Co., Ltd., Robert Bosch GmbH, and Huawei Technologies Co., Ltd. are the leading companies. Fredrikson & Byron, P. A., Huawei Technologies Co.,Ltd. & Maier & Maier, PLLC, and IPro, PLLC are the leading firms. Practitioners may prioritize concise written prosecution and targeted amendments.

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

Performance Statistics

89.2%
Allow Rate
+21.2% vs TC avg
853
Total Applications
+6.0%
Interview Lift
927
Avg Prosecution Days
Based on 832 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
33.4%
§102 Novelty
50.6%
§103 Obviousness
10.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18646846 THREE-PHASE AC/DC CONVERTER AND METHOD FOR OPERATING THE SAME Final Rejection Robert Bosch GmbH
19058255 POWER CONVERTER AND POWER SUPPLY Non-Final OA Huawei Digital Power Technologies Co., Ltd.
19098380 ELECTRICAL SYSTEM WITH A VOLTAGE CONVERTER AND AN EXTERNAL CONTROL CIRCUIT FOR CONTROLLING THE CONVERTER Non-Final OA Schaeffler Technologies AG & Co. KG
19085300 CIRCUIT WITH DYNAMIC BIASING AND INPUT COMPENSATION Non-Final OA TEXAS INSTRUMENTS INCORPORATED
19079828 TOTEM-POLE POWER FACTOR CORRECTION CONVERTER AND CONTROL METHOD THEREOF Non-Final OA Delta Electronics, Inc.
19057822 Synchronous Rectifier Scheme to Avoid Cross-conduction in a Fly-Back Converter Non-Final OA Cypress Semiconductor Corporation
19064089 LOW-DROPOUT (LDO) VOLTAGE REGULATOR Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18883846 ACTIVE CLAMP FLYBACK CONVERTER WITH SHUTDOWN PROTECTION Final Rejection Chengdu Monolithic Power Systems Co., Ltd.
18743856 TOTEM POLE POWER FACTOR CORRECTION CIRCUIT WITH REVERSE CURRENT LIMIT AND CONTROL METHOD THEREOF Final Rejection Chengdu Monolithic Power Systems Co., Ltd.

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Frequently Asked Questions

What is examiner Nusrat Quddus's allowance rate?

89.2% of resolved applications examined by Nusrat Quddus were allowed (832 resolved cases), compared with 76.3% across Art Unit 2838 over the last five years.

Does an interview help with examiner Nusrat Quddus?

This examiner's interview lift is +6.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Nusrat Quddus take to allow a patent?

Applications allowed by Nusrat Quddus took 927 days on average from filing to allowance.

Which art unit does examiner Nusrat Quddus work in?

Nusrat Quddus examines applications in Art Unit 2838 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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