Prosecution Insights
Last updated: October 27, 2026

Yuechuan Yu, USPTO Patent Examiner

Listed by the USPTO as YU, YUECHUAN

Tech Center 2800 • Art Units: 1713 1714 1718 2817 2891 2893

This examiner grants 66% of resolved cases

Analysis

YU, YUECHUAN is assigned to Tech Center 2800 and Art Unit 1713. The profile includes 541 resolved cases and shows a 66.4% allowance rate. Interviews are associated with a 19.7% lift in allowance outcomes. The median time to allowance is 1228 days.

The listed companies are Applied Materials Inc., Tokyo Electron Limited, and Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. The listed firms are Anova Law Group, PLLC, Moser Taboada, and OLIVE LAW GROUP, PLLC. The data supports selective interview use combined with precise claim amendments and a written explanation of the relevant technical distinctions.

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

Performance Statistics

66.4%
Allow Rate
-1.6% vs TC avg
557
Total Applications
+19.7%
Interview Lift
1228
Avg Prosecution Days
Based on 541 resolved cases, 2023–2026

Rejection Statute Breakdown

1.6%
§101 Eligibility
17.1%
§102 Novelty
57.2%
§103 Obviousness
19.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18281619 MANUFACTURING EQUIPMENT FOR LIGHT-EMITTING DEVICE Final Rejection Semiconductor Energy Laboratory Co., Ltd.
18633928 PROCESSING APPARATUS Non-Final OA Tokyo Electron Limited
18227370 PLASMA PROCESSING APPARATUS AND METHOD FOR CONTROLLING SOURCE FREQUENCY OF SOURCE RADIO-FREQUENCY POWER Non-Final OA Tokyo Electron Limited
17943702 METHOD OF DETECTING DEVIATION AMOUNT OF SUBSTRATE TRANSPORT POSITION AND SUBSTRATE PROCESSING APPARATUS Final Rejection Tokyo Electron Limited
18421872 Gas Distribution Plate with Enhanced Gas Hole Consistency and Extended Life Non-Final OA Applied Materials, Inc.
18381893 MULTIZONE REFLECTOR FOR TEMPERATURE PLANAR NON-UNIFORMITY Non-Final OA Applied Materials, Inc.
18808738 SUBSTRATE PROCESSING APPARATUS, PLURALITY OF ELECTRODES AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE Non-Final OA Kokusai Electric Corporation
18469707 SUBSTRATE TREATING APPARATUS Non-Final OA SCREEN Holdings Co., Ltd.

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Frequently Asked Questions

What is examiner Yuechuan Yu's allowance rate?

66.4% of resolved applications examined by Yuechuan Yu were allowed (541 resolved cases), compared with 62.4% across Art Unit 1713 over the last five years.

Does an interview help with examiner Yuechuan Yu?

This examiner's interview lift is +19.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Yuechuan Yu take to allow a patent?

Applications allowed by Yuechuan Yu took 1,228 days on average from filing to allowance.

Which art unit does examiner Yuechuan Yu work in?

Yuechuan Yu examines applications in Art Unit 1713 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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