Prosecution Insights
Last updated: October 27, 2026

Alexander J Yoon, USPTO Patent Examiner

Listed by the USPTO as YOON, ALEXANDER J

Tech Center 2400 • Art Units: 2135 2139 2494

This examiner grants 60% of resolved cases

Analysis

Alexander J. Yoon is an examiner in Tech Center 2400 and Art Unit 2135. The examiner has handled 241 resolved cases, resulting in an allowance rate of 60.2 percent. The median days to allowance for these cases is 1152. This duration represents the time required to reach a grant.

The interview lift is 13.2 percent. This figure indicates the change in allowance probability following an interview. Companies in this examiner's docket include Micron Technology Inc., Pure Storage Inc., and Intel Corporation. These entities navigate the 1152-day median pendency during the patent acquisition process.

Legal representation is provided by firms such as AGORA LAW GROUP, PLLC, Alliance IP, LLC - Intel, and Maschoff Brennan. The 241 resolved cases provide the basis for these outcomes. Practitioners can evaluate the 13.2 percent lift and the 60.2 percent allowance rate when developing prosecution strategies. The data reflects the prosecution environment for applications assigned to this art unit.

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

Performance Statistics

60.2%
Allow Rate
+2.2% vs TC avg
259
Total Applications
+13.2%
Interview Lift
1152
Avg Prosecution Days
Based on 241 resolved cases, 2023–2026

Rejection Statute Breakdown

4.1%
§101 Eligibility
8.1%
§102 Novelty
62.7%
§103 Obviousness
22.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18945120 Verifying Data Integrity End-to-End in a Storage System Non-Final OA Pure Storage, Inc.
19107813 DISTRIBUTED ADDRESS TRANSLATION SERVICES Final Rejection Intel Corporation
19297803 SELECTIVELY PROGRAMMING RETIRED WORDLINES OF A MEMORY DEVICE Non-Final OA MICRON TECHNOLOGY, INC.
19232794 USING DUPLICATE DATA FOR IMPROVING ERROR CORRECTION CAPABILITY Non-Final OA Micron Technology, Inc.
19204196 ZONE WRITE OPERATION TECHNIQUES Non-Final OA Micron Technology, Inc.
18771733 PROCESSOR WITH HARDWARE-INTEGRATED MEMORY ACCESS PROTECTION Final Rejection Texas Instruments Incorporated
19300438 COMPUTING SYSTEM INCLUDING STORAGE DEVICE AND OPERATING METHOD THEREOF Non-Final OA SK hynix Inc.
19255542 MEMORY DEVICE Non-Final OA NATIONAL TSING HUA UNIVERSITY

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Frequently Asked Questions

What is examiner Alexander J Yoon's allowance rate?

60.2% of resolved applications examined by Alexander J Yoon were allowed (241 resolved cases), compared with 73.0% across Art Unit 2135 over the last five years.

Does an interview help with examiner Alexander J Yoon?

This examiner's interview lift is +13.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Alexander J Yoon take to allow a patent?

Applications allowed by Alexander J Yoon took 1,152 days on average from filing to allowance.

Which art unit does examiner Alexander J Yoon work in?

Alexander J Yoon examines applications in Art Unit 2135 in Tech Center 2400 (Networking & Security).

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