Prosecution Insights
Last updated: October 27, 2026

Peter J Macchiarolo, USPTO Patent Examiner

Listed by the USPTO as MACCHIAROLO, PETER J

Tech Center 2800 • Art Units: 2855 2856 2863 2879

This examiner grants 70% of resolved cases

Performance Statistics

69.8%
Allow Rate
+1.8% vs TC avg
316
Total Applications
+11.0%
Interview Lift
1167
Avg Prosecution Days
Based on 285 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
29.8%
§102 Novelty
39.4%
§103 Obviousness
23.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18710970 Tilt Sensor and Detecting System Non-Final OA Nippon Telegraph and Telephone Corporation
18708663 SAMPLE SUPPORT UNIT, AND SAMPLE IONIZATION METHOD Non-Final OA HAMAMATSU PHOTONICS K.K.
18023356 ULTRASONIC STRUCTURAL HEALTH MONITORING DEVICE, SYSTEM AND METHOD Final Rejection NATIONAL RESEARCH COUNCIL OF CANADA
18594731 APPARATUS, SYSTEM AND METHODS FOR TESTING A FILTER Final Rejection HAMILTON ASSOCIATES, INC.

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Frequently Asked Questions

What is examiner Peter J Macchiarolo's allowance rate?

69.8% of resolved applications examined by Peter J Macchiarolo were allowed (285 resolved cases), compared with 76.8% across Art Unit 2855 over the last five years.

Does an interview help with examiner Peter J Macchiarolo?

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 Peter J Macchiarolo take to allow a patent?

Applications allowed by Peter J Macchiarolo took 1,167 days on average from filing to allowance.

Which art unit does examiner Peter J Macchiarolo work in?

Peter J Macchiarolo examines applications in Art Unit 2855 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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