Prosecution Insights
Last updated: October 01, 2026

Examiner: CHOWDHURY, SUBIR KUMAR

Tech Center 2400 • Art Units: 2132 2464

This examiner grants 79% of resolved cases

Analysis

Subir Kumar Chowdhury works in Art Unit 2132 of Tech Center 2400, where the examiner has 43 resolved cases. The allowance rate is 79.1 percent. This metric indicates the proportion of applications that result in a patent grant. The median days to allowance is 848, representing the duration of the prosecution period.

The interview lift is 4.3 percent. This figure shows the change in the allowance rate when an interview is conducted. Practitioners can use this 4.3 percent lift to assess the potential impact of oral advocacy. The 43 cases provide the basis for these observations in Art Unit 2132.

The 848 median days to allowance serves as a benchmark for applicants in Tech Center 2400. With an allowance rate of 79.1 percent, the majority of applications reach a grant. These data points offer a view of the examiner's historical performance. The record of resolved cases helps in understanding the procedural environment.

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

Performance Statistics

79.1%
Allow Rate
+21.1% vs TC avg
70
Total Applications
+4.3%
Interview Lift
848
Avg Prosecution Days
Based on 43 resolved cases, 2023–2026

Rejection Statute Breakdown

4.0%
§101 Eligibility
26.5%
§102 Novelty
59.3%
§103 Obviousness
8.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18640433 STORAGE DEVICE SETTING PERFORMANCE ATTRIBUTION, AND METHOD OF OPERATING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
19365440 SCALABLE ACCESS CONTROL CHECKING FOR CROSS-ADDRESS-SPACE DATA MOVEMENT Non-Final OA Intel Corporation
17728776 WORKLOAD-DEPENDENT AGE TRACKING FOR NON-VOLATILE MEMORY Final Rejection Intel Corporation
17552239 CACHE PROBE TRANSACTION FILTERING Non-Final OA Intel Corporation
19105940 Control Device And Method For Initializing A Control Device Final Rejection Schaeffler Technologies AG & Co. KG
19105784 STORAGE SYSTEM AND DATA PROCESSING METHOD Final Rejection CLOUD INTELLIGENCE ASSETS HOLDING (SINGAPORE) PRIVATE LIMITED
18709856 STORAGE CONTROL METHOD, STORAGE CONTROLLER, STORAGE CHIP, NETWORK CARD, AND READABLE MEDIUM Final Rejection ZTE CORPORATION
19203244 COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM STORING PROGRAM Non-Final OA DENSO CORPORATION
19035721 MEMORY READ AHEAD FOR ARTIFICIAL INTELLIGENCE APPLICATIONS Non-Final OA Micron Technology, Inc.

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