Prosecution Insights
Last updated: October 26, 2026

John Chiang Merino, USPTO Patent Examiner

Listed by the USPTO as MERINO, JOHN CHIANG

Tech Center 3700 • Art Units: 3661 3669 3723

This examiner grants 73% of resolved cases

Analysis

MERINO, JOHN CHIANG works in Tech Center 3700 and Art Unit 3661. The record covers 67 resolved cases, with an allowance rate of 73.1%, an interview lift of 25.5%, and a median time to allowance of 1074 days. The case volume is limited, so the figures should inform but not replace application-specific review. The interview measure supports considering a focused discussion of claim scope and the cited art.

The listed companies are Airbus SAS, The Boeing Company, and Hitachi Ltd. The listed firm is FOLEY & LARDNER LLP. Practitioners can use these names to locate related matters involving aerospace, transportation, or industrial technologies, while relying on the particular office action history to determine the appropriate amendment and interview strategy.

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

Performance Statistics

73.1%
Allow Rate
+3.1% vs TC avg
81
Total Applications
+25.5%
Interview Lift
1074
Avg Prosecution Days
Based on 67 resolved cases, 2023–2026

Rejection Statute Breakdown

4.5%
§101 Eligibility
28.1%
§102 Novelty
43.1%
§103 Obviousness
24.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19036347 METHOD AND SYSTEM FOR ASSISTING WITH THE RESTART OF AT LEAST ONE AIRCRAFT ENGINE Final Rejection Airbus Operations (S.A.S.)
19048599 SYSTEMS AND METHODS FOR VALIDATING REAL-TIME CONTROL OF AUTONOMOUS VEHICLES Non-Final OA THE BOEING COMPANY
18816628 SYSTEMS AND METHODS FOR VISUALIZING A PREDICTED PATH OF AN AIRCRAFT Final Rejection HONEYWELL INTERNATIONAL INC.
18847896 EXTERNAL ENVIRONMENT RECOGNITION DEVICE Non-Final OA HITACHI ASTEMO, LTD.
18940002 DUAL-STAGE MULTIDAY CHARGING CONTROL Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Frequently Asked Questions

What is examiner John Chiang Merino's allowance rate?

73.1% of resolved applications examined by John Chiang Merino were allowed (67 resolved cases), compared with 77.3% across Art Unit 3661 over the last five years.

Does an interview help with examiner John Chiang Merino?

This examiner's interview lift is +25.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner John Chiang Merino take to allow a patent?

Applications allowed by John Chiang Merino took 1,074 days on average from filing to allowance.

Which art unit does examiner John Chiang Merino work in?

John Chiang Merino examines applications in Art Unit 3661 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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