Prosecution Insights
Last updated: October 26, 2026

Immaculada Barrera, USPTO Patent Examiner

Listed by the USPTO as BARRERA, IMMACULADA

Tech Center 1600 • Art Units: 1671 1672

This examiner grants 30% of resolved cases

Analysis

BARRERA, IMMACULADA works in Tech Center 1600 and Art Unit 1671. The profile contains 30 resolved cases, with a 30.0% allowance rate and an 80.8% interview lift. The strong interview association makes direct examiner engagement a central consideration, although the case record is limited.

The median time to allowance is 1311 days. Janssen Pharmaceuticals Inc., Riken, and National University of Singapore are the listed companies. The listed firms are SUGHRUE MION, PLLC, BakerHostetler, and DINSMORE & SHOHL LLP.

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

Performance Statistics

30.0%
Allow Rate
-30.0% vs TC avg
71
Total Applications
+80.8%
Interview Lift
1311
Avg Prosecution Days
Based on 30 resolved cases, 2023–2026

Rejection Statute Breakdown

4.8%
§101 Eligibility
12.5%
§102 Novelty
32.7%
§103 Obviousness
30.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18261427 SAMPLE LYSIS REAGENT COMPOSITIONS AND METHODS OF PRODUCTION AND USE THEREOF Final Rejection Siemens Healthcare Diagnostics Inc.
18021262 Pharmaceutical Composition Comprising Hepatitis B Virus-Derived Polypeptide for Prevention or Treatment of Cancer Non-Final OA SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

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Frequently Asked Questions

What is examiner Immaculada Barrera's allowance rate?

30.0% of resolved applications examined by Immaculada Barrera were allowed (30 resolved cases), compared with 39.7% across Art Unit 1671 over the last five years.

Does an interview help with examiner Immaculada Barrera?

This examiner's interview lift is +80.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Immaculada Barrera take to allow a patent?

Applications allowed by Immaculada Barrera took 1,311 days on average from filing to allowance.

Which art unit does examiner Immaculada Barrera work in?

Immaculada Barrera examines applications in Art Unit 1671 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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