Prosecution Insights
Last updated: October 27, 2026

Siming Liu, USPTO Patent Examiner

Listed by the USPTO as LIU, SIMING

Tech Center 2400 • Art Units: 2411 2413 2416 2472

This examiner grants 82% of resolved cases

Analysis

LIU, SIMING is a USPTO patent examiner in Tech Center 2400 and Art Unit 2411. The record includes 575 resolved cases, an 82.1% allowance rate, and a median of 1038 days to allowance. The allowance figure indicates that most matters reached allowance, while the median timing shows that favorable outcomes may still require a substantial prosecution period.

The interview lift is 10.8%, reflecting a positive but limited association between interviews and allowance outcomes. The listed companies are Huawei Technologies, Qualcomm, and Samsung Electronics. The listed firms are Harrity & Harrity, Alleman Hall, and IP Legal Services. Applicants may benefit from interviews, but detailed written treatment of claim distinctions remains important.

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

Performance Statistics

82.1%
Allow Rate
+24.1% vs TC avg
603
Total Applications
+10.8%
Interview Lift
1038
Avg Prosecution Days
Based on 575 resolved cases, 2023–2026

Rejection Statute Breakdown

6.0%
§101 Eligibility
17.2%
§102 Novelty
49.7%
§103 Obviousness
19.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18291634 NETWORK NODE, USER EQUIPMENT, AND METHODS PERFORMED THEREIN Non-Final OA Telefonaktiebolaget LM Ericsson (publ)
18693914 METHOD AND DEVICE FOR TRANSMITTING/RECEIVING GROUP COMMON PDSCH IN WIRELESS COMMUNICATION SYSTEM Non-Final OA LG ELECTRONICS INC.
18718730 METHOD AND DEVICE FOR IMPROVING DATA RECEPTION PERFORMANCE IN COMMUNICATION SYSTEM Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18639839 FULL POWER UPLINK TRANSMISSION Final Rejection Samsung Electronics Co., Ltd.
18894477 COMMUNICATION DEVICE, COMMUNICATION METHOD, AND STORAGE MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
18897480 DEVICE WAKE-UP METHOD AND COMMUNICATION APPARATUS Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
18681519 TRANSMISSION CONTROL METHOD IN SATELLITE COMMUNICATION SYSTEM AND RELATED APPARATUS Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
17673653 CONTENTION WINDOW MAINTENANCE METHOD AND DEVICE Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
18799272 TECHNIQUES FOR CHANNEL SENSING MODE SELECTION Final Rejection QUALCOMM Incorporated
18742262 TECHNIQUES FOR MAXIMUM PERMISSIBLE EXPOSURE COMPLIANCE Non-Final OA QUALCOMM Incorporated
18428660 BLIND DECODING AND CELL DISCONTINUOUS TRANSMISSION Non-Final OA QUALCOMM Incorporated
17953034 ENHANCED VEHICLE-TO-EVERYTHING RADIO ACCESS TECHNOLOGY MIGRATION Final Rejection QUALCOMM Incorporated
18291781 TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION Non-Final OA NTT DOCOMO, INC.
18849045 REPORTING METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM Non-Final OA BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
18890650 METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING NEW RADIO TECHNOLOGY (NR) PHYSICAL DOWNLINK CONTROL CHANNEL (PDCCH) IN WIRELESS COMMUNICATION SYSTEM Non-Final OA KT CORPORATION
18928577 TIMING ADJUSTMENT METHOD, CONFIGURATION METHOD, APPARATUS, AMPLIFIER, AND BASE STATION Non-Final OA VIVO MOBILE COMMUNICATION CO., LTD.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Siming Liu's allowance rate?

82.1% of resolved applications examined by Siming Liu were allowed (575 resolved cases), compared with 68.5% across Art Unit 2411 over the last five years.

Does an interview help with examiner Siming Liu?

This examiner's interview lift is +10.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Siming Liu take to allow a patent?

Applications allowed by Siming Liu took 1,038 days on average from filing to allowance.

Which art unit does examiner Siming Liu work in?

Siming Liu examines applications in Art Unit 2411 in Tech Center 2400 (Networking & Security).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month