Prosecution Insights
Last updated: October 27, 2026

Sarai E Butler, USPTO Patent Examiner

Listed by the USPTO as BUTLER, SARAI E

Tech Center 2100 • Art Units: 2100 2114

This examiner grants 88% of resolved cases

Analysis

BUTLER, SARAI E is assigned to USPTO Technology Center 2100 and art unit 2100. The profile includes 1161 resolved cases and an 88.2% allowance rate. The median time to allowance is 860 days, which provides a meaningful planning horizon for applicants managing prosecution, continuation filings, and related technology releases.

Interviews show a reported lift of 10.6%. The listed companies are Samsung Electronics Co., Ltd., Intel Corporation, and Nippon Telegraph and Telephone Corporation. ALSTON & BIRD LLP, Barron & Young PLLC, and CKC & Partners Co., LLC are the identified firms. Applicants in this docket should present software and communications claims with clear technical structure. A focused interview can supplement, but not replace, a well-supported written response.

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

Performance Statistics

88.2%
Allow Rate
+33.2% vs TC avg
1,189
Total Applications
+10.6%
Interview Lift
860
Avg Prosecution Days
Based on 1161 resolved cases, 2023–2026

Rejection Statute Breakdown

4.3%
§101 Eligibility
20.5%
§102 Novelty
54.7%
§103 Obviousness
9.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18773721 OPERATION METHOD OF MEMORY DEVICE, OPERATION METHOD OF CONTROLLER CONFIGURED TO CONTROL MEMORY DEVICE, AND OPERATION METHOD OF STORAGE DEVICE INCLUDING MEMORY DEVICE AND CONTROLLER Non-Final OA Samsung Electronics Co., Ltd.
19072274 ENHANCED ISSUE STACK ANALYSIS Final Rejection Lemon Inc.
18230387 NETWORK INTERFACE DEVICE FAILOVER Non-Final OA Intel Corporation
18840941 FAILURE INFORMATION DETECTING APPARATUS, FAILURE INFORMATION DETECTING METHOD, AND FAILURE INFORMATION DETECTING PROGRAM Final Rejection NTT, Inc.
18584712 MULTIPLE AGENT AUTOMATIC ROOT CAUSE ANALYSIS Non-Final OA eBay Inc.
19260539 SYSTEMS AND METHODS FOR CONNECTION SWITCH AUTOMATION Non-Final OA Truist Bank
18355808 I/O FAILOVER USING ADAPTER FIRMWARE Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
19309721 MEMORY CONTROLLER AND MCU CHIP Non-Final OA GIGADEVICE SEMICONDUCTOR INC.
19284193 ITERATIVE CODE INTERPRETER USING LLMS Non-Final OA Notion Labs, Inc.
19262117 MEMORY MODULE AND METHOD FOR TESTING MEMORY MODULE Non-Final OA NANYA TECHNOLOGY CORPORATION

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Frequently Asked Questions

What is examiner Sarai E Butler's allowance rate?

88.2% of resolved applications examined by Sarai E Butler were allowed (1,161 resolved cases), compared with 38.8% across Art Unit 2100 over the last five years.

Does an interview help with examiner Sarai E Butler?

This examiner's interview lift is +10.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sarai E Butler take to allow a patent?

Applications allowed by Sarai E Butler took 860 days on average from filing to allowance.

Which art unit does examiner Sarai E Butler work in?

Sarai E Butler examines applications in Art Unit 2100 in Tech Center 2100 (Computing & Software).

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