Prosecution Insights
Last updated: October 27, 2026

Keisha Y Castillo-Torres, USPTO Patent Examiner

Listed by the USPTO as CASTILLO-TORRES, KEISHA Y

Tech Center 2600 • Art Units: 2659

This examiner grants 74% of resolved cases

Analysis

CASTILLO-TORRES, KEISHA Y is assigned to tech center 2600 and art unit 2659. The profile includes 121 resolved cases, a 74.4% allowance rate, and a 1042-day median to allowance. The 33.7% interview lift indicates a substantial positive association between interviews and allowance outcomes in the recorded matters.

The listed companies are Google LLC, Samsung Electronics Co., Ltd., and Apple Inc. The leading firms are Artegis Law Group, LLP, Gray Ice Higdon (Google LLC), and SUGHRUE MION, PLLC. Practitioners can use the profile to support a proactive prosecution plan that pairs careful claim drafting with timely examiner discussion where the application presents issues suitable for clarification.

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

Performance Statistics

74.4%
Allow Rate
+12.4% vs TC avg
159
Total Applications
+33.7%
Interview Lift
1042
Avg Prosecution Days
Based on 121 resolved cases, 2023–2026

Rejection Statute Breakdown

28.7%
§101 Eligibility
13.1%
§102 Novelty
45.7%
§103 Obviousness
5.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18825677 AUDIO SEPARATION METHOD AND ELECTRONIC DEVICE FOR PERFORMING THE SAME Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18624838 VECTOR QUANTIZATION OF DECORRELATED SPECTRAL COEFFICIENTS Non-Final OA APPLE INC.
19090292 Conformer-based Speech Conversion Model Non-Final OA Google LLC
19018421 PROVIDING CERTAIN REASONING WITH RESPECT TO FULFILLMENT OF AN ASSISTANT COMMAND Non-Final OA GOOGLE LLC
18965988 DETECTING ERRORS IN CHAT BOT OUTPUTS USING LANGUAGE MODEL NEURAL NETWORKS Non-Final OA Google LLC
18441785 INPUT MECHANISM FOR GENERATIVE MODELS Non-Final OA GOOGLE LLC
19033851 TEXT SUMMARIZATION TECHNIQUES Non-Final OA Amazon Technologies, Inc.
18741267 ELECTRONIC DEVICE AND CONTROL METHOD THEREOF Final Rejection Kia Corporation
18385284 AGE-SENSITIVE AUTOMATIC SPEECH RECOGNITION Final Rejection Adeia Guides Inc.
18966018 MACHINE LEARNING MODEL WITH CONSTRAINED OUTPUT TOKEN VOCABULARY Non-Final OA Microsoft Technology Licensing, LLC
18640393 AUDIO PROCESSING METHOD AND APPARATUS, DEVICE, STORAGE MEDIUM, AND COMPUTER PROGRAM PRODUCT Non-Final OA Tencent Technology (Shenzhen) Company Limited
18687871 SILENCE DESCRIPTOR USING SPATIAL PARAMETERS Final Rejection NOKIA TECHNOLOGIES OY
18313426 IMAGE PROCESSING TECHNIQUES FOR GENERATING PREDICTIONS Final Rejection Optum Services (Ireland) Limited
18665978 METHODS FOR IMPROVING LISTWISE RANKING IN LARGE LANGUAGE MODELS Final Rejection Comcast Cable Communications, LLC
18974450 METHOD FOR GENERATING DIALOGUE, ELECTRONIC DEVICE, AND STORAGE MEDIUM Non-Final OA BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
17864252 GENERATING RULES FOR MANAGING AN INFRASTRUCTURE FROM NATURAL-LANGUAGE EXPRESSIONS Final Rejection NUTANIX, INC.
18302464 GENERATING, APPLYING, AND VERIFYING AUDIO SIGNATURES FOR DIGITAL DOCUMENTS Final Rejection Dropbox, Inc.
17671286 COMPUTER-BASED TECHNIQUES FOR VISUALLY NARRATING RECORDED MEETING CONTENT Non-Final OA AUTODESK, INC.
18678143 METHOD, DEVICE, AND PROGRAM PRODUCT FOR DETERMINING SOURCE OF SYNTHESIZED AUDIO Final Rejection Dell Products L.P.

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Frequently Asked Questions

What is examiner Keisha Y Castillo-Torres's allowance rate?

74.4% of resolved applications examined by Keisha Y Castillo-Torres were allowed (121 resolved cases), compared with 62.4% across Art Unit 2659 over the last five years.

Does an interview help with examiner Keisha Y Castillo-Torres?

This examiner's interview lift is +33.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Keisha Y Castillo-Torres take to allow a patent?

Applications allowed by Keisha Y Castillo-Torres took 1,042 days on average from filing to allowance.

Which art unit does examiner Keisha Y Castillo-Torres work in?

Keisha Y Castillo-Torres examines applications in Art Unit 2659 in Tech Center 2600 (Communications).

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