Prosecution Insights
Last updated: October 26, 2026

Sean D Rossiter, USPTO Patent Examiner

Listed by the USPTO as ROSSITER, SEAN D

Tech Center 2100 • Art Units: 2133 2186

This examiner grants 89% of resolved cases

Analysis

ROSSITER, SEAN D is assigned to tech center 2100 and art unit 2133. The record contains 675 resolved cases, an 88.9% allowance rate, and a median of 874 days to allowance. The 8.9% interview lift indicates a positive but limited association between interviews and allowance outcomes.

The listed companies are Samsung Electronics Co., Ltd., Pure Storage Inc., and Micron Technology Inc. No firms are listed in the profile. Practitioners can use the allowance rate and substantial case history to set expectations, while the median timing supports planning for a prosecution period extending beyond a short examination cycle. Interviews may help, but the reported lift does not make them the primary distinguishing feature.

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

Performance Statistics

88.9%
Allow Rate
+33.9% vs TC avg
679
Total Applications
+8.9%
Interview Lift
874
Avg Prosecution Days
Based on 675 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
34.0%
§102 Novelty
41.6%
§103 Obviousness
17.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19001725 MEMORY DEVICE, SYSTEM-ON-CHIP CONFIGURED TO CONTROL MEMORY DEVICE, AND ELECTRONIC DEVICE INCLUDING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
19208316 UTILIZING INCREMENTAL PARITY TO OPTIMIZE FLASH MEMORY STORAGE Non-Final OA PURE STORAGE, INC.
19060360 MEMORY DEVICE WITH DUAL LOGIC INTERFACES AND INTERNAL DATA MOVER Final Rejection Micron Technology, Inc.

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Frequently Asked Questions

What is examiner Sean D Rossiter's allowance rate?

88.9% of resolved applications examined by Sean D Rossiter were allowed (675 resolved cases), compared with 85.8% across Art Unit 2133 over the last five years.

Does an interview help with examiner Sean D Rossiter?

This examiner's interview lift is +8.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sean D Rossiter take to allow a patent?

Applications allowed by Sean D Rossiter took 874 days on average from filing to allowance.

Which art unit does examiner Sean D Rossiter work in?

Sean D Rossiter examines applications in Art Unit 2133 in Tech Center 2100 (Computing & Software).

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