Prosecution Insights
Last updated: October 26, 2026

Sophia Vlahos, USPTO Patent Examiner

Listed by the USPTO as VLAHOS, SOPHIA

Tech Center 2600 • Art Units: 2611 2631 2633

This examiner grants 87% of resolved cases

Analysis

VLAHOS, SOPHIA works in tech center 2600 and art unit 2611. The profile contains 828 resolved cases, an allowance rate of 87.1%, and a median of 935 days to allowance. The interview lift is 10.8%, indicating a positive relationship between interviews and allowance outcomes in the available record.

The principal company clients are LG Electronics Inc., Apple Inc., and Sony Group Corporation. The leading firms are BRAKE HUGHES BELLERMANN LLP, FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER, and Kowert Hood Munyon Rankin & Goetzel (Apple). The data gives counsel a substantial basis for evaluating allowance expectations, timing, and the practical value of interviews in art unit 2611.

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

Performance Statistics

87.1%
Allow Rate
+25.1% vs TC avg
850
Total Applications
+10.8%
Interview Lift
935
Avg Prosecution Days
Based on 828 resolved cases, 2023–2026

Rejection Statute Breakdown

4.3%
§101 Eligibility
18.1%
§102 Novelty
47.7%
§103 Obviousness
24.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18914708 OPERATING A LOWER LAYER SPLIT CENTRAL UNIT Final Rejection TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
19115393 METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM Non-Final OA LG ELECTRONICS INC.
18848146 COMMUNICATION CONTROL DEVICE AND COMMUNICATION CONTROL METHOD Non-Final OA Sony Group Corporation
19219720 TRANSMISSION RATE NEGOTIATION METHOD, COMMUNICATION APPARATUS, AND COMMUNICATION SYSTEM Non-Final OA HUAWEI TECHNOLOGIES CO., LTD.
19009559 SOUNDING AND CSI FEEDBACK FOR COORDINATED BEAMFORMING Non-Final OA QUALCOMM Incorporated
18717700 SYSTEMS AND METHODS UTILIZING DOPPLER FREQUENCY VALUES FOR WIRELESS COMMUNICATION Non-Final OA QUALCOMM Incorporated
18260111 BEAM INDICATION METHOD AND APPARATUS, AND COMMUNICATION DEVICE Final Rejection BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
19010889 PEAK TO AVERAGE POWER RATIO REDUCTION Non-Final OA NOKIA SOLUTIONS AND NETWORKS OY

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Frequently Asked Questions

What is examiner Sophia Vlahos's allowance rate?

87.1% of resolved applications examined by Sophia Vlahos were allowed (828 resolved cases), compared with 70.5% across Art Unit 2611 over the last five years.

Does an interview help with examiner Sophia Vlahos?

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 Sophia Vlahos take to allow a patent?

Applications allowed by Sophia Vlahos took 935 days on average from filing to allowance.

Which art unit does examiner Sophia Vlahos work in?

Sophia Vlahos examines applications in Art Unit 2611 in Tech Center 2600 (Communications).

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