Prosecution Insights
Last updated: October 27, 2026

Julius Francis Yoh, USPTO Patent Examiner

Listed by the USPTO as YOH, JULIUS FRANCIS

Tech Center 1700 • Art Units: 1638 1653 1656 1657 1799

This examiner grants 75% of resolved cases

Analysis

YOH, JULIUS FRANCIS works in tech center 1700 and art unit 1638. The profile includes 4 resolved cases, an allowance rate of 75.0%, and a median of 1129 days to allowance. Interviews show a 33.3% lift, indicating a positive association with allowance outcomes.

The very small resolved-case base limits the reliability of broader predictions. Kabushiki Kaisha Toshiba, Honda, and Signify Holding are the listed companies, while OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., AMIN, TUROCY & WATSON, LLP, and DILWORTH & BARRESE, LLP are the listed firms.

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

Performance Statistics

75.0%
Allow Rate
+10.0% vs TC avg
31
Total Applications
+33.3%
Interview Lift
1129
Avg Prosecution Days
Based on 4 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
22.1%
§102 Novelty
40.7%
§103 Obviousness
36.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18202602 Barrier Apparatus For Cell Culture And Methods Of Cell Culture Using The Barrier Apparatus Final Rejection THE REGENTS OF THE UNIVERSITY OF MICHIGAN
18591102 FLOW CHANNEL STRUCTURE AND METHOD FOR PRODUCING LIPID PARTICLE Non-Final OA KABUSHIKI KAISHA TOSHIBA
18663119 CULTURING SYSTEM Non-Final OA HONDA MOTOR CO., LTD.
18578037 MICROBIOME MANAGEMENT IN AN ANIMAL RESIDENCE Non-Final OA SIGNIFY HOLDING B.V.
18312315 SUCTION TIP AND BIOLOGICAL SUBJECT TRANSFER DEVICE Non-Final OA YAMAHA HATSUDOKI KABUSHIKI KAISHA
18294371 ACTIVE TISSUE SCAFFOLD STRETCHING UNDER CELL CULTURE CONDITIONS Non-Final OA ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
18690785 METHODS, SYSTEMS AND COMPOSITIONS FOR RESTORATION AND PRESERVATION OF INTACT ORGANS IN A MAMMAL Non-Final OA Yale University

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Frequently Asked Questions

What is examiner Julius Francis Yoh's allowance rate?

75.0% of resolved applications examined by Julius Francis Yoh were allowed (4 resolved cases), compared with 48.8% across Art Unit 1638 over the last five years.

Does an interview help with examiner Julius Francis Yoh?

This examiner's interview lift is +33.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Julius Francis Yoh take to allow a patent?

Applications allowed by Julius Francis Yoh took 1,129 days on average from filing to allowance.

Which art unit does examiner Julius Francis Yoh work in?

Julius Francis Yoh examines applications in Art Unit 1638 in Tech Center 1700 (Chemistry & Materials).

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