Prosecution Insights
Last updated: October 27, 2026

Nam Phuong Cao, USPTO Patent Examiner

Listed by the USPTO as CAO, NAM PHUONG

Tech Center 2400 • Art Units: 2400 2469 2479

This examiner grants 92% of resolved cases

Analysis

CAO, NAM PHUONG is assigned to tech center 2400 and art unit 2400. The profile includes 24 resolved cases, a 91.7% allowance rate, and a 10.5% interview lift. The median days to allowance are 1034.

The listed companies are Qualcomm Incorporated, Beijing Xiaomi Mobile Software Co., Ltd., and Samsung Electronics Co., Ltd. The listed firms are FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER, Bayes PLLC, and CANTOR COLBURN LLP. The allowance rate is favorable, while the interview lift is positive but more limited. The small case volume supports treating the record as an informative signal rather than a complete prediction for every application.

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

Performance Statistics

91.7%
Allow Rate
+33.7% vs TC avg
54
Total Applications
+10.5%
Interview Lift
1034
Avg Prosecution Days
Based on 24 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
33.5%
§102 Novelty
58.2%
§103 Obviousness
8.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18860486 METHOD AND DEVICE FOR PERFORMING SIDELINK COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM Non-Final OA LG Electronics Inc.
18486656 APPARATUS AND METHOD OF GROUP UE HANDOVER FOR SAVING NETWORK ENERGY CONSUMPTION IN WIRELESS COMMUNICATION SYSTEM Final Rejection Samsung Electronics Co., Ltd.
18363317 METHOD AND APPARATUS FOR MEASURING AND REPORTING QOE OF APPLICATION FOR MBS BROADCAST SERVICE IN MOBILE COMMUNICATION SYSTEM Non-Final OA Samsung Electronics Co., Ltd.
18860613 Uplink Control Information Omission for Coherent Joint Transmission Multi-Transmission-Reception-Point Operation Non-Final OA Apple Inc.
18255540 DATA TRANSMISSION METHOD AND APPARATUS Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
17982110 Methods and Apparatus for Network Initiated Mobility In Networks Final Rejection Huawei Technologies Co., Ltd.
18613964 METHOD AND APPARATUS FOR CANCELLATION SEQUENCE IN A WIRELESS COMMUNICATION SYSTEM Non-Final OA ASUS Technology Licensing Inc.
18901682 PER-TUPLE NETWORK PAGING WHITELISTING Non-Final OA QUALCOMM Incorporated
18648200 SUBBAND-BASED UPLINK POWER CONTROL Final Rejection QUALCOMM Incorporated
18149629 ACCESS POINT-TO-ACCESS POINT TRANSMISSION OPPORTUNITY SHARING Non-Final OA QUALCOMM Incorporated
18008397 BEAM ACTIVATION BASED ON PCI Non-Final OA QUALCOMM Incorporated
18140979 COMMUNICATION METHOD BASED ON INTER-UE COORDINATION INFORMATION IN SIDELINK Final Rejection KIA CORPORATION
18844292 PRECODING INDICATION FOR SIMULTANEOUS MULTI-PANEL UL TRANSMISSION Non-Final OA Lenovo (Beijing) Limited
18877797 DOWNLINK TRANSMISSION METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM Non-Final OA Beijing Xiaomi Mobile Software Co., Ltd.
18859118 HYBRID AUTOMATIC REPEAT REQUEST (HARQ) FEEDBACK PROCESSING METHOD AND APPARATUS Non-Final OA Beijing Xiaomi Mobile Software Co., Ltd.
18013970 METHOD FOR REPORTING PROBLEM, METHOD FOR RECEIVING PROBLEM, TERMINAL, AND STORAGE MEDIUM Non-Final OA BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
18420005 DEVICES, METHODS AND APPARATUSES FOR MULTICAST TRANSMISSION Final Rejection Nokia Technologies Oy
18981119 WIRELESS COMMUNICATION METHOD, TERMINAL DEVICE, AND NETWORK DEVICE Non-Final OA GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
18782957 COMMUNICATION METHOD, APPARATUS, TERMINAL DEVICE, CHIP, MEDIUM, PRODUCT, AND PROGRAM Non-Final OA GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
18655312 SIDELINK RESOURCE SELECTION PROCESSING METHOD AND APPARATUS, TERMINAL, AND READABLE STORAGE MEDIUM Non-Final OA VIVO MOBILE COMMUNICATION CO., LTD.
18857953 Sounding Reference Signal Resource Reallocation Method, Base Station, and Storage Medium Non-Final OA ZTE Corporation
18562561 BEAM PROCESSING METHOD, NETWORK DEVICE, BASE STATION, AND COMPUTER READABLE STORAGE MEDIUM Final Rejection ZTE CORPORATION

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Frequently Asked Questions

What is examiner Nam Phuong Cao's allowance rate?

91.7% of resolved applications examined by Nam Phuong Cao were allowed (24 resolved cases), compared with 49.8% across Art Unit 2400 over the last five years.

Does an interview help with examiner Nam Phuong Cao?

This examiner's interview lift is +10.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Nam Phuong Cao take to allow a patent?

Applications allowed by Nam Phuong Cao took 1,034 days on average from filing to allowance.

Which art unit does examiner Nam Phuong Cao work in?

Nam Phuong Cao examines applications in Art Unit 2400 in Tech Center 2400 (Networking & Security).

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