Prosecution Insights
Last updated: October 02, 2026

Examiner: WESTBROOK, MICHAEL L

Tech Center 2100 • Art Units: 2139

This examiner grants 74% of resolved cases

Analysis

Michael L. Westbrook is a patent examiner assigned to Art Unit 2139 within Tech Center 2100. The examiner's professional record includes 222 resolved cases. The data indicates an allowance rate of 74.3% for these applications. This figure serves as a primary indicator of the probability of success for cases on this docket. Additionally, the median days to allowance is 1053, which establishes a specific timeframe for the prosecution process. These metrics offer a foundational understanding of the examiner's approach to patent applications.

The interview lift for this examiner is 6.3%. This 6.3% lift shows the change in the likelihood of allowance when an interview is conducted compared to the 74.3% base rate. With 222 resolved cases, the data provides a view of the examiner's historical performance. The 1053-day median pendency is a key metric for managing client expectations regarding the duration of the patent application process in Tech Center 2100. Practitioners should evaluate the allowance rate and the interview lift to determine the most effective strategy for their specific cases.

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

Performance Statistics

74.3%
Allow Rate
+19.3% vs TC avg
242
Total Applications
+6.3%
Interview Lift
1053
Avg Prosecution Days
Based on 222 resolved cases, 2023–2026

Rejection Statute Breakdown

4.1%
§101 Eligibility
19.5%
§102 Novelty
49.1%
§103 Obviousness
22.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18989513 MEMORY DEVICE USING COMPRESSED ZONES AND OPERATING METHOD THEREOF Final Rejection Samsung Electronics Co., Ltd.
18219547 PROMPT AND GRADUAL MIGRATION SCHEMES Final Rejection Samsung Electronics Co., Ltd.
18341164 COMPUTATIONAL STORAGE DEVICES, STORAGE SYSTEMS INCLUDING THE SAME, AND OPERATING METHODS THEREOF Non-Final OA Samsung Electronics Co., Ltd.
19088084 HARD DISK MANAGEMENT METHOD, HARD DISK CONTROL METHOD, AND RELATED DEVICE Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18179502 APPLICATION-CONSISTENT SNAPSHOTS Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18977742 Dynamic Capacity Devices Implemented via Dynamic Mapping of Memory addresses in Memory Access Requests Routed Through a Compute Express Link Fabric Non-Final OA Micron Technology, Inc.
18754923 MAINTAINING INTEGRITY OF A MEMORY COMPONENT Final Rejection Micron Technology, Inc.
18627334 PROCESSING AND MEMORY DEVICE AND SYSTEM Final Rejection Taiwan Semiconductor Manufacturing Co., Ltd.
19176644 IO PROCESSING METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM Non-Final OA IEIT SYSTEMS Co., Ltd.

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