Prosecution Insights
Last updated: October 26, 2026

Sandra Zingarelli, USPTO Patent Examiner

Listed by the USPTO as ZINGARELLI, SANDRA

Tech Center 1600 • Art Units: 1653

This examiner grants 7% of resolved cases

Analysis

ZINGARELLI, SANDRA works in Tech Center 1600 and Art Unit 1653. The profile contains 30 resolved cases and an allowance rate of 6.7%. The median time to allowance is 1271 days, so the limited record and extended timing both support cautious prosecution planning.

The interview lift is 46.4%, indicating a substantial association with allowance outcomes in the available data. Practitioners may give interviews meaningful attention, while recognizing that the resolved-case base is limited. The represented companies include CJ CheilJedang Corporation, King Abdullah University of Science and Technology, and Ajinomoto Co., Inc. The listed firms are Bayramoglu Law Offices LLC, BCF LLP (Misc.), and BIRCH STEWART KOLASCH & BIRCH, LLP.

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

Performance Statistics

6.7%
Allow Rate
-53.3% vs TC avg
74
Total Applications
+46.4%
Interview Lift
1271
Avg Prosecution Days
Based on 30 resolved cases, 2023–2026

Rejection Statute Breakdown

5.9%
§101 Eligibility
13.8%
§102 Novelty
42.4%
§103 Obviousness
30.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17787263 VARIANT OF INNER MEMBRANE PROTEIN AND METHOD FOR PRODUCING TARGET PRODUCT BY USING SAME Non-Final OA CJ CHEILJEDANG CORPORATION

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Frequently Asked Questions

What is examiner Sandra Zingarelli's allowance rate?

6.7% of resolved applications examined by Sandra Zingarelli were allowed (30 resolved cases), compared with 23.5% across Art Unit 1653 over the last five years.

Does an interview help with examiner Sandra Zingarelli?

This examiner's interview lift is +46.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sandra Zingarelli take to allow a patent?

Applications allowed by Sandra Zingarelli took 1,271 days on average from filing to allowance.

Which art unit does examiner Sandra Zingarelli work in?

Sandra Zingarelli examines applications in Art Unit 1653 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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