Prosecution Insights
Last updated: October 27, 2026

John Charles Mckillop, USPTO Patent Examiner

Listed by the USPTO as MCKILLOP, JOHN CHARLES

Tech Center 1600 • Art Units: 1636 1637 1699

This examiner grants 61% of resolved cases

Analysis

MCKILLOP, JOHN CHARLES is assigned to Tech Center 1600 and art unit 1636. The record covers 57 resolved cases, with an allowance rate of 61.4%. The median time to allowance is 1451 days, indicating a lengthy path for cases that reach allowance. Because the resolved-case base is limited, the figures should be treated as directional rather than conclusive.

The interview lift is 40.4%, linking interviews with a substantial improvement in allowance outcomes. Counsel may place particular value on preparing a focused technical explanation and using the interview to identify workable claim distinctions. The leading companies are THE GENERAL HOSPITAL Corporation, Lonza Ltd., and Research Institute At Nationwide Children's Hospital. The leading firms are Emerson, Thomson & Bennett, LLC, FOLEY HOAG, LLP (General), and Lathrop GPM LLP | Sanofi-Aventis.

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

Performance Statistics

61.4%
Allow Rate
+1.4% vs TC avg
83
Total Applications
+40.4%
Interview Lift
1451
Avg Prosecution Days
Based on 57 resolved cases, 2023–2026

Rejection Statute Breakdown

4.8%
§101 Eligibility
17.1%
§102 Novelty
39.0%
§103 Obviousness
27.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17602076 Enhancement of Melanocyte Migration Using ROCK Inhibitors Final Rejection The General Hospital Corporation
18273643 MATERIALS AND METHODS FOR THE TREATMENT OF LYSOSOMAL ACID LIPASE DEFICIENCY (LAL-D) Non-Final OA RESEARCH INSTITUTE AT NATIONWIDE CHILDREN'S HOSPITAL

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Frequently Asked Questions

What is examiner John Charles Mckillop's allowance rate?

61.4% of resolved applications examined by John Charles Mckillop were allowed (57 resolved cases), compared with 37.1% across Art Unit 1636 over the last five years.

Does an interview help with examiner John Charles Mckillop?

This examiner's interview lift is +40.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner John Charles Mckillop take to allow a patent?

Applications allowed by John Charles Mckillop took 1,451 days on average from filing to allowance.

Which art unit does examiner John Charles Mckillop work in?

John Charles Mckillop examines applications in Art Unit 1636 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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