Prosecution Insights
Last updated: October 26, 2026

Hoang X Ngo, USPTO Patent Examiner

Listed by the USPTO as NGO, HOANG X

Tech Center 2800 • Art Units: 2852

This examiner grants 94% of resolved cases

Analysis

NGO, HOANG X has resolved 887 cases, with an allowance rate of 93.7% and an interview lift of 6.7%. The median time to allowance is 624 days. The high allowance rate and substantial case record provide a clear historical signal for prosecution planning. The limited interview measure suggests that counsel should not assume an interview is necessary to achieve the recorded type of result.

The examiner is assigned to tech center 2800 and art unit 2852. The leading companies are Canon Inc., Fujifilm Holdings Corporation, and Zhuhai Ninestar Information Technology Co. Ltd. The leading firms are Venable LLP, Anova Law Group, PLLC, and OLIFF PLC. The participants identify a strong imaging and printing context for the docket.

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

Performance Statistics

93.7%
Allow Rate
+25.7% vs TC avg
903
Total Applications
+6.7%
Interview Lift
624
Avg Prosecution Days
Based on 887 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
61.7%
§102 Novelty
24.3%
§103 Obviousness
2.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19280569 SHEET PROCESSING APPARATUS THAT BONDS PLURALITY OF SHEETS TOGETHER, AND IMAGE FORMING SYSTEM Non-Final OA CANON KABUSHIKI KAISHA
19264900 DEVICE ATTACHABLE TO AND DETACHABLE FROM IMAGE-FORMING APPARATUS, AND METHOD AND APPARATUS FOR REMANUFACTURING THE DEVICE Non-Final OA CANON KABUSHIKI KAISHA
19225595 IMAGE FORMING APPARATUS AND INTERMEDIARY TRANSFER UNIT Non-Final OA CANON KABUSHIKI KAISHA
19076339 IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA

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Frequently Asked Questions

What is examiner Hoang X Ngo's allowance rate?

93.7% of resolved applications examined by Hoang X Ngo were allowed (887 resolved cases), compared with 78.8% across Art Unit 2852 over the last five years.

Does an interview help with examiner Hoang X Ngo?

This examiner's interview lift is +6.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hoang X Ngo take to allow a patent?

Applications allowed by Hoang X Ngo took 624 days on average from filing to allowance.

Which art unit does examiner Hoang X Ngo work in?

Hoang X Ngo examines applications in Art Unit 2852 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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