Prosecution Insights
Last updated: October 27, 2026

Mahfuzur Rahman, USPTO Patent Examiner

Listed by the USPTO as RAHMAN, MAHFUZUR

Tech Center 2400 • Art Units: 2438 2498

This examiner grants 91% of resolved cases

Analysis

RAHMAN, MAHFUZUR has 764 resolved cases in Tech Center 2400 and Art Unit 2438. The allowance rate is 90.8%, and the median time to allowance is 912 days. Interviews show an 8.4% lift, indicating a positive association with allowance outcomes.

The docket includes Apple Inc., Tyco Fire & Security GmbH, and Royal Bank of Canada. The listed firms are CALDWELL LLC, KDW Firm PLLC (1988), and Kowert Hood Munyon Rankin & Goetzel (Apple). The high allowance rate supports a focused prosecution approach, while the interview signal gives counsel an additional avenue for addressing substantive issues.

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

Performance Statistics

90.8%
Allow Rate
+32.8% vs TC avg
783
Total Applications
+8.4%
Interview Lift
912
Avg Prosecution Days
Based on 764 resolved cases, 2023–2026

Rejection Statute Breakdown

22.1%
§101 Eligibility
5.5%
§102 Novelty
49.5%
§103 Obviousness
11.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18476729 LARGE LANGUAGE MODEL (LLM) PRUNING USING EXTENDED KRONECKER APPROXIMATIONS Final Rejection QUALCOMM Incorporated
18643859 DATA STORAGE SYSTEM, MOBILE OBJECT, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM Final Rejection DENSO CORPORATION
19240635 HIGH BANDWIDTH ENCRYPTION ENGINES IN A MULTIPATHING IP NETWORK Non-Final OA Cisco Technology, Inc.

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Frequently Asked Questions

What is examiner Mahfuzur Rahman's allowance rate?

90.8% of resolved applications examined by Mahfuzur Rahman were allowed (764 resolved cases), compared with 69.5% across Art Unit 2438 over the last five years.

Does an interview help with examiner Mahfuzur Rahman?

This examiner's interview lift is +8.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mahfuzur Rahman take to allow a patent?

Applications allowed by Mahfuzur Rahman took 912 days on average from filing to allowance.

Which art unit does examiner Mahfuzur Rahman work in?

Mahfuzur Rahman examines applications in Art Unit 2438 in Tech Center 2400 (Networking & Security).

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