Prosecution Insights
Last updated: October 26, 2026

Louis A Mercado, USPTO Patent Examiner

Listed by the USPTO as MERCADO, LOUIS A

Tech Center 3600 • Art Units: 3677

This examiner grants 79% of resolved cases

Analysis

MERCADO, LOUIS A works in Tech Center 3600 and Art Unit 3677. The examiner has 682 resolved cases, an allowance rate of 78.6%, and a median time to allowance of 807 days. The interview lift is 18.7%, indicating a measurable role for interviews in the available record. Practitioners should use that opportunity selectively and pair it with clear claim amendments, reference distinctions, and written confirmation of any agreed positions.

The listed companies are Illinois Tool Works Inc., YKK Corporation, and Shiu-Yin Cheng. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, BARLEY SNYDER, and BROWNSTEIN HYATT FARBER SCHRECK, LLP. These recurring entities can help counsel identify related prosecution matters and prepare arguments that reflect the types of technologies and claim issues appearing in this docket.

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

Performance Statistics

78.6%
Allow Rate
+26.6% vs TC avg
727
Total Applications
+18.7%
Interview Lift
807
Avg Prosecution Days
Based on 682 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
41.9%
§102 Novelty
32.0%
§103 Obviousness
21.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18733529 Split Piping Slider Non-Final OA Illinois Tool Works Inc.
18666337 CABLE TIE ARRANGEMENT Final Rejection Illinois Tool Works Inc.
18337364 Fastener Assembly for Vehicle Final Rejection Kia Corporation
19344185 SLIDE FASTENER-ATTACHED PRODUCT Non-Final OA YKK CORPORATION
18032106 WATERPROOF SLIDE FASTENER AND METHOD OF PRODUCING THE SAME Non-Final OA YKK Corporation
19008927 ADJUSTABLE VEHICLE FASTENER ASSEMBLY Final Rejection Ford Global Technologies, LLC
18901449 SEAT BELT END CLOSING DEVICE AND VEHICLE HAVING SAME Non-Final OA BYD COMPANY LIMITED

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Frequently Asked Questions

What is examiner Louis A Mercado's allowance rate?

78.6% of resolved applications examined by Louis A Mercado were allowed (682 resolved cases), compared with 55.1% across Art Unit 3677 over the last five years.

Does an interview help with examiner Louis A Mercado?

This examiner's interview lift is +18.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Louis A Mercado take to allow a patent?

Applications allowed by Louis A Mercado took 807 days on average from filing to allowance.

Which art unit does examiner Louis A Mercado work in?

Louis A Mercado examines applications in Art Unit 3677 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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