Prosecution Insights
Last updated: October 27, 2026

Lilya Pekarskaya, USPTO Patent Examiner

Listed by the USPTO as PEKARSKAYA, LILYA

Tech Center 3700 • Art Units: 3746 3753

This examiner grants 68% of resolved cases

Analysis

PEKARSKAYA, LILYA has resolved 341 cases in Tech Center 3700 and Art Unit 3746. The allowance rate is 67.7%, and the median time to allowance is 1293 days. The profile therefore reflects a meaningful allowance opportunity alongside a prosecution cycle that can require sustained docket management.

The interview lift is 41.5%, making interviews a notable feature of this examiner’s recorded outcomes. The leading companies are Cooper-Standard Automotive Inc., Vanderbilt University, and Aisan Kogyo Kabushiki Kaisha. ALIX, YALE & RISTAS, LLP, GOODWIN PROCTER LLP, and LERNER GREENBERG STEMER LLP are the listed firms. Applicants may find interview preparation especially relevant when developing responses and amendment strategy.

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

Performance Statistics

67.7%
Allow Rate
-2.3% vs TC avg
368
Total Applications
+41.5%
Interview Lift
1293
Avg Prosecution Days
Based on 341 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
13.4%
§102 Novelty
51.7%
§103 Obviousness
30.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18041656 VALVELESS DEVICES FOR PULSATILE FLUID FLOW Final Rejection Vanderbilt University
19263748 MULTIPLE-VALVE SYSTEM FOR A FLUID PUMP Final Rejection SPM Oil & Gas Inc.

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Frequently Asked Questions

What is examiner Lilya Pekarskaya's allowance rate?

67.7% of resolved applications examined by Lilya Pekarskaya were allowed (341 resolved cases), compared with 68.0% across Art Unit 3746 over the last five years.

Does an interview help with examiner Lilya Pekarskaya?

This examiner's interview lift is +41.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Lilya Pekarskaya take to allow a patent?

Applications allowed by Lilya Pekarskaya took 1,293 days on average from filing to allowance.

Which art unit does examiner Lilya Pekarskaya work in?

Lilya Pekarskaya examines applications in Art Unit 3746 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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