Prosecution Insights
Last updated: October 27, 2026

Liliana P Cerullo, USPTO Patent Examiner

Listed by the USPTO as CERULLO, LILIANA P

Tech Center 2600 • Art Units: 2621 2629 2691

This examiner grants 75% of resolved cases

Analysis

CERULLO, LILIANA P works in tech center 2600 and art unit 2621. The profile records 970 resolved cases, a 74.8% allowance rate, and a 912-day median to allowance. The 20.3% interview lift indicates that interviews have been associated with improved allowance outcomes in the recorded matters.

The listed companies are Magnolia White Corporation, Samsung Electronics Co., Ltd., and Apple Inc. The leading firms are K&L Gates LLP-Chicago, 2SPL Patent Attorneys, and CANTOR COLBURN LLP. The large case record provides useful context for planning prosecution, with the allowance rate supporting a constructive outlook and the interview measure supporting consideration of examiner discussion where claim issues are amenable to clarification.

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

Performance Statistics

74.8%
Allow Rate
+12.8% vs TC avg
996
Total Applications
+20.3%
Interview Lift
912
Avg Prosecution Days
Based on 970 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
20.0%
§102 Novelty
56.1%
§103 Obviousness
16.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18903673 SEMICONDUCTOR MODULE AND DISPLAY DEVICE Final Rejection Samsung Electronics Co., Ltd.
19281849 DISPLAY DEVICE Non-Final OA LG Display Co., Ltd.
19227833 CIRCUIT AND METHOD FOR INCREASED BIT DEPTH IN HIGH FRAME RATE APPLICATIONS Final Rejection Texas Instruments Incorporated
19007758 TOUCH SENSOR DEVICE AND DISPLAY DEVICE WITH A TOUCH SENSOR Non-Final OA Magnolia White Corporation
18632987 DISPLAY DEVICE WITH DETECTION PERIODS HAVING PULSED DRIVE SIGNALS AND SEPARATED FROM DISPLAY PERIOD Non-Final OA Magnolia White Corporation

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Frequently Asked Questions

What is examiner Liliana P Cerullo's allowance rate?

74.8% of resolved applications examined by Liliana P Cerullo were allowed (970 resolved cases), compared with 64.2% across Art Unit 2621 over the last five years.

Does an interview help with examiner Liliana P Cerullo?

This examiner's interview lift is +20.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Liliana P Cerullo take to allow a patent?

Applications allowed by Liliana P Cerullo took 912 days on average from filing to allowance.

Which art unit does examiner Liliana P Cerullo work in?

Liliana P Cerullo examines applications in Art Unit 2621 in Tech Center 2600 (Communications).

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