Prosecution Insights
Last updated: October 26, 2026

Roberto Fabian Jr., USPTO Patent Examiner

Listed by the USPTO as FABIAN JR, ROBERTO

Tech Center 2800 • Art Units: 2800 2811 2877

This examiner grants 71% of resolved cases

Analysis

FABIAN JR, ROBERTO is assigned to technology center 2800 and art unit 2800. The profile records 138 resolved cases, a 71.0% allowance rate, an interview lift of 28.5%, and a median of 914 days to allowance. The data shows a favorable allowance outcome across a moderate case history, with interviews associated with improved results.

The listed companies are KLA Corporation, Samsung Electronics Co., Ltd., and Apple Inc. The listed firms are Amundsen Davis, LLC, BIRCH STEWART KOLASCH & BIRCH, LLP, and Brannon Sowers & Cracraft PC/. Practitioners may consider interviews a useful supplement to written responses. The median timing suggests that applicants should still maintain active prosecution oversight even where the historical allowance measure is favorable.

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

Performance Statistics

71.0%
Allow Rate
+3.0% vs TC avg
183
Total Applications
+28.5%
Interview Lift
914
Avg Prosecution Days
Based on 138 resolved cases, 2023–2026

Rejection Statute Breakdown

3.0%
§101 Eligibility
17.5%
§102 Novelty
69.1%
§103 Obviousness
8.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18774473 SPECTROSCOPIC ELLIPSOMETER AND SUBSTRATE ANALYSIS METHOD USING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18752507 Systems and Accessories for Optical Analysis of Samples on Portable Electronic Devices Final Rejection Apple Inc.
18986429 MEASUREMENT SYSTEM, MEASUREMENT METHOD, AND PLASMA PROCESSING DEVICE Final Rejection TOKYO ELECTRON LIMITED
17886053 INSPECTION METHOD FOR PELLICLE MEMBRANE OF LITHOGRAPHY SYSTEM Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

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Frequently Asked Questions

What is examiner Roberto Fabian Jr.'s allowance rate?

71.0% of resolved applications examined by Roberto Fabian Jr. were allowed (138 resolved cases), compared with 69.7% across Art Unit 2800 over the last five years.

Does an interview help with examiner Roberto Fabian Jr.?

This examiner's interview lift is +28.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Roberto Fabian Jr. take to allow a patent?

Applications allowed by Roberto Fabian Jr. took 914 days on average from filing to allowance.

Which art unit does examiner Roberto Fabian Jr. work in?

Roberto Fabian Jr. examines applications in Art Unit 2800 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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