Prosecution Insights
Last updated: October 27, 2026

Christopher J Brown, USPTO Patent Examiner

Listed by the USPTO as BROWN, CHRISTOPHER J

Tech Center 2400 • Art Units: 2134 2431 2432 2434 2439

This examiner grants 76% of resolved cases

Analysis

BROWN, CHRISTOPHER J is assigned to Tech Center 2400 and Art Unit 2134. The record contains 721 resolved cases, an allowance rate of 75.5%, and a median of 1250 days to allowance. The interview lift is 12.8%, supporting deliberate use of interviews as part of a broader response strategy.

Darktrace Holdings Limited, British Telecommunications Public Limited Company, and NEC Corporation are the listed companies. The leading firms are RUTAN & TUCKER, LLP, Alleman Hall LLP, and Compass IP Law PC. These names identify representative communications and software-related activity, while the timing measure signals a need to account for extended prosecution in planning.

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

Performance Statistics

75.5%
Allow Rate
+17.5% vs TC avg
770
Total Applications
+12.8%
Interview Lift
1250
Avg Prosecution Days
Based on 721 resolved cases, 2023–2026

Rejection Statute Breakdown

2.2%
§101 Eligibility
11.6%
§102 Novelty
63.3%
§103 Obviousness
11.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18707738 Generating a Security Metric Using a Machine Learning Model Final Rejection Telefonaktiebolaget LM Ericsson (publ)
19290440 SYSTEM AND METHOD FOR IMPLEMENTING TIME-RESTRICTED ACCESS CONTROL TO ELECTRONIC DIGITAL RESOURCES Non-Final OA BANK OF AMERICA CORPORATION
18845927 AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND PROGRAM Non-Final OA NEC Corporation
19029751 RULE SEARCHING METHOD AND APPARATUS, DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
18900084 USER AUTHENTICATION SYSTEM CAPABLE OF GENERATING ONE-TIME PASSWORD HAVING FIXED EFFECTIVE PERIOD, AND STORAGE MEDIUM Final Rejection KYOCERA Document Solutions Inc.
18230594 IN-NETWORK COMPUTE OPERATIONS UTILIZING ENCRYPTED COMMUNICATIONS Non-Final OA Intel Corporation
18186768 CREDENTIAL-BASED SECURITY POSTURE ENGINE IN A SECURITY MANAGEMENT SYSTEM Final Rejection Microsoft Technology Licensing, LLC
18356415 METHOD AND APPARATUS FOR SEARCHING FOR LIGHT-WEIGHT MODEL THROUGH REPLACEMENT OF SUBNETWORK OF TRAINED NEURAL NETWORK MODEL Final Rejection Electronics and Telecommunications Research Institute
19091143 METHODS AND COMPUTER SYSTEMS FOR JOINING A BLOCKCHAIN NETWORK Non-Final OA Nokia Solutions and Networks Oy
18373765 ITERATIVE CROSS-PRODUCT THREAT DETECTION BASED ON NETWORK TELEMETRY RELATIONSHIPS Non-Final OA Cisco Technology, Inc.
18970320 SECURITY PLATFORM WITH EXTERNAL INLINE PROCESSING OF ASSEMBLED SELECTED TRAFFIC Final Rejection Palo Alto Networks, Inc.
19133674 AUTHENTICATION FOR DEVICE SECURITY Non-Final OA British Telecommunications Public Limited Company
18555083 NETWORK PROTECTION Final Rejection BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
18446964 GENERATING AI DATASET USING 3D ENGINE Final Rejection Raytheon Company
18349124 NEURAL NETWORK PROCESSING Final Rejection Arm Limited
19251530 ENHANCED RISK ASSESSMENT Non-Final OA FORESCOUT TECHNOLOGIES, INC.
18365499 SMART, CUSTOMER CENTRIC, PERSONALIZED DIGITAL HUMAN FRAMEWORK Non-Final OA Dell Products L.P.

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Frequently Asked Questions

What is examiner Christopher J Brown's allowance rate?

75.5% of resolved applications examined by Christopher J Brown were allowed (721 resolved cases).

Does an interview help with examiner Christopher J Brown?

This examiner's interview lift is +12.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christopher J Brown take to allow a patent?

Applications allowed by Christopher J Brown took 1,250 days on average from filing to allowance.

Which art unit does examiner Christopher J Brown work in?

Christopher J Brown examines applications in Art Unit 2134 in Tech Center 2400 (Networking & Security).

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