Prosecution Insights
Last updated: October 27, 2026

Marissa Liana Ferguson Samreth, USPTO Patent Examiner

Listed by the USPTO as FERGUSON SAMRETH, MARISSA LIANA

Tech Center 3600 • Art Units: 1782 1788 2853 2854 2893 3654

This examiner grants 70% of resolved cases

Analysis

FERGUSON SAMRETH, MARISSA LIANA has 792 resolved cases in Tech Center 3600 and art unit 1782. The allowance rate is 69.9%, the interview lift is 11.0%, and the median time to allowance is 1004 days. The record provides substantial prosecution history and indicates an allowance outcome supported by a median timeline of more than one thousand days.

The listed companies are Seiko Epson Corporation, Makeblock Co. Ltd., and Zebra Technologies Corporation. The listed firms are CHOATE, HALL & STEWART LLP, ECKERT SEAMANS CHERIN & MELLOTT LLC, and HODGSON RUSS LLP. Interviews appear to have a supporting role relative to the allowance rate, so practitioners may prioritize well-supported written responses while using discussions to test claim distinctions and resolve focused issues.

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

Performance Statistics

69.9%
Allow Rate
+17.9% vs TC avg
817
Total Applications
+11.0%
Interview Lift
1004
Avg Prosecution Days
Based on 792 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
24.3%
§102 Novelty
56.5%
§103 Obviousness
13.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19077812 PLATEN AND PRESS UNIT Final Rejection BROTHER KOGYO KABUSHIKI KAISHA
18822560 PRINTING APPARATUS Final Rejection SEIKO EPSON CORPORATION
18818546 Media Processing Device with Temperature Compensation Final Rejection ZEBRA TECHNOLOGIES CORPORATION
18493379 MICRO SOLDER JOINT AND STENCIL APERTURE DESIGN Non-Final OA Sandisk Technologies, Inc.
18744898 ROTARY SCREEN PRINTING APPARATUS AND PROCESS Non-Final OA Temptime Corporation

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Frequently Asked Questions

What is examiner Marissa Liana Ferguson Samreth's allowance rate?

69.9% of resolved applications examined by Marissa Liana Ferguson Samreth were allowed (792 resolved cases), compared with 43.3% across Art Unit 1782 over the last five years.

Does an interview help with examiner Marissa Liana Ferguson Samreth?

This examiner's interview lift is +11.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Marissa Liana Ferguson Samreth take to allow a patent?

Applications allowed by Marissa Liana Ferguson Samreth took 1,004 days on average from filing to allowance.

Which art unit does examiner Marissa Liana Ferguson Samreth work in?

Marissa Liana Ferguson Samreth examines applications in Art Unit 1782 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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