Prosecution Insights
Last updated: October 26, 2026

Thomas R Cairns, USPTO Patent Examiner

Listed by the USPTO as CAIRNS, THOMAS R

Tech Center 2400 • Art Units: 2400 2415 2468

This examiner grants 81% of resolved cases

Analysis

CAIRNS, THOMAS R is assigned to USPTO Technology Center 2400 and art unit 2400. The profile includes 319 resolved cases and reports an 81.2% allowance rate. The median time to allowance is 856 days, giving applicants a defined planning horizon for prosecution and related portfolio actions.

The interview lift is 24.6%, supporting direct examiner engagement as part of a balanced response strategy. Huawei Technologies Co., Ltd., Qualcomm Incorporated, and InterDigital Inc. are the listed companies. Burr & Forman LLP - NOKIA, Harrity & Harrity, LLP Qualcomm, and HSML P.C. are the identified firms. Practitioners should emphasize clear technical distinctions in communications claims and use interviews to test focused amendments while preserving important scope.

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

Performance Statistics

81.2%
Allow Rate
+23.2% vs TC avg
337
Total Applications
+24.6%
Interview Lift
856
Avg Prosecution Days
Based on 319 resolved cases, 2023–2026

Rejection Statute Breakdown

4.0%
§101 Eligibility
21.9%
§102 Novelty
51.7%
§103 Obviousness
16.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18866759 HANDLING OF SERVING CELL BASED ON MULTICAST MEASUREMENT Non-Final OA LG ELECTRONICS INC.
18785717 METHOD AND APPARATUS FOR TRANSMITTING DATA AND CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM Non-Final OA Samsung Electronics Co., Ltd.
18737860 SYSTEMS, METHODS, AND DEVICES FOR FAST PRIMARY CELL RECOVERY Non-Final OA Apple Inc.
18888860 SIDELINK UNLICENSED PRIORITIES FOR CHANNEL ACCESS AND RESOURCE RESERVATION Non-Final OA Huawei Technologies Co., Ltd.
18293176 TRANSMISSION RECEPTION POINT MODE CONFIGURATION Non-Final OA QUALCOMM Incorporated
18553115 UPLINK CONTROL INFORMATION CARRIER SWITCH Non-Final OA QUALCOMM Incorporated
18284915 NR POSITIONING - METHODS FOR RESOURCE PROVISION IN SIDELINK POSITIONING Non-Final OA INTERDIGITAL PATENT HOLDINGS, INC.
18029762 DETERMINING WHETHER AN INACTIVE RELAY WTRU MAY INDEED SERVE A NETWORK-INITIATED CONNECTION AT A REMOTE SERVED WTRU Final Rejection InterDigital Patent Holdings, Inc.
18692929 METHODS AND APPARATUSES FOR DETERMINING TRANSMISSION CONFIGURATION INDICATOR STATE Final Rejection Nokia Technologies Oy
18486065 DYNAMIC SL RESOURCE ALLOCATION Final Rejection MEDIATEK INC.

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Frequently Asked Questions

What is examiner Thomas R Cairns's allowance rate?

81.2% of resolved applications examined by Thomas R Cairns were allowed (319 resolved cases), compared with 49.8% across Art Unit 2400 over the last five years.

Does an interview help with examiner Thomas R Cairns?

This examiner's interview lift is +24.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Thomas R Cairns take to allow a patent?

Applications allowed by Thomas R Cairns took 856 days on average from filing to allowance.

Which art unit does examiner Thomas R Cairns work in?

Thomas R Cairns examines applications in Art Unit 2400 in Tech Center 2400 (Networking & Security).

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