Prosecution Insights
Last updated: October 26, 2026

Sithu Ko, USPTO Patent Examiner

Listed by the USPTO as KO, SITHU

Tech Center 2400 • Art Units: 2400 2414 2463

This examiner grants 87% of resolved cases

Analysis

KO, SITHU is assigned to tech center 2400 and art unit 2400. The profile covers 636 resolved cases, with an allowance rate of 86.6% and a median of 891 days to allowance. The case volume provides a substantial record, and the allowance rate indicates that most resolved matters reached allowance.

The interview lift is 15.7%, showing a positive association with allowance. An interview may be useful for narrowing disagreements before filing an amendment, although the written response remains part of the overall strategy. The listed companies are Qualcomm Incorporated, Huawei Technologies Co., Ltd., and Beijing Xiaomi Mobile Software Co., Ltd. The associated firms are Harrity & Harrity, LLP, AMPACC Law Group, PLLC, and Brooks Kushman P.C.

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

Performance Statistics

86.6%
Allow Rate
+28.6% vs TC avg
677
Total Applications
+15.7%
Interview Lift
891
Avg Prosecution Days
Based on 636 resolved cases, 2023–2026

Rejection Statute Breakdown

4.7%
§101 Eligibility
8.9%
§102 Novelty
70.2%
§103 Obviousness
10.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18805449 MANAGING COEXISTENCE OF COMMUNICATION PROTOCOLS IN USER DEVICE Non-Final OA Apple Inc.
18709982 METHOD, DEVICE AND COMPUTER STORAGE MEDIUM OF COMMUNICATION Non-Final OA NEC CORPORATION
18813803 COMMUNICATION METHOD AND APPARATUS Non-Final OA Huawei Technologies Co., Ltd.
18533545 COMMUNICATION METHOD AND APPARATUS, AND READABLE STORAGE MEDIUM Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18732328 BASE STATION, TERMINAL, TRANSMISSION METHOD AND RECEPTION METHOD Non-Final OA Panasonic Intellectual Property Corporation of America
18843944 UNIFIED TRANSMISSION CONFIGURATION INDICATOR STATE INDICATION FOR SINGLE-FREQUENCY NETWORKS Non-Final OA QUALCOMM Incorporated
18843660 GROUP-COMMON BANDWIDTH PART SWITCHING Non-Final OA QUALCOMM INCORPORATED
18747959 TIMELINE CONSIDERATIONS FOR CHANNEL STATE INFORMATION REPORTING OF A SIDELINK CHANNEL Non-Final OA QUALCOMM Incorporated
18693373 FAST RECOVERY AFTER EXITING COVERAGE HOLE Final Rejection QUALCOMM Incorporated
18861435 CONFIGURATION MANAGEMENT METHOD AND APPARATUS, DEVICE AND STORAGE MEDIUM Non-Final OA BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
18857888 CELL ACTIVATION METHOD AND DEVICE Non-Final OA BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
18277349 METHOD AND SYSTEM FOR 5GS AND EPS INTERWORKING FOR UAV COMMUNICATION Final Rejection INTERDIGITAL PATENT HOLDINGS, INC.
18618656 CO-ORDINATION OF SPATIAL DOMAIN INFORMATION, POWER DOMAIN INFORMATION AND CELL DISCONTINUOUS TRANSMISSION AND/OR DISCONTINUOUS RECEPTION Final Rejection Nokia Technologies Oy
17315105 METHOD FOR INDICATING TERMINAL CAPABILITY, METHOD FOR OBTAINING TERMINAL CAPABILITY, METHOD FOR INDICATING CAPABILITY IDENTIFIER, METHOD FOR OBTAINING CAPABILITY IDENTIFIER, AND COMMUNICATIONS DEVICE Non-Final OA VIVO MOBILE COMMUNICATION CO.,LTD.
18799528 DEVICE TO DEVICE COMMUNICATION Non-Final OA ZTE CORPORATION

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Frequently Asked Questions

What is examiner Sithu Ko's allowance rate?

86.6% of resolved applications examined by Sithu Ko were allowed (636 resolved cases), compared with 49.8% across Art Unit 2400 over the last five years.

Does an interview help with examiner Sithu Ko?

This examiner's interview lift is +15.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sithu Ko take to allow a patent?

Applications allowed by Sithu Ko took 891 days on average from filing to allowance.

Which art unit does examiner Sithu Ko work in?

Sithu Ko examines applications in Art Unit 2400 in Tech Center 2400 (Networking & Security).

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