Prosecution Insights
Last updated: October 26, 2026

David H Banh, USPTO Patent Examiner

Listed by the USPTO as BANH, DAVID H

Tech Center 3700 • Art Units: 2627 2841 2853 2854 3631 3651 3653 3725 3772

This examiner grants 72% of resolved cases

Analysis

BANH, DAVID H works in Tech Center 3700 and Art Unit 2627, with 876 resolved cases. The allowance rate is 71.8%, and the median time to allowance is 993 days. The substantial record shows that a majority of matters reached allowance, with the median prosecution period approaching a significant docket-management threshold.

The interview lift is 12.6%, indicating a limited positive interview signal. The listed companies are Canon Inc., Interprint GmbH, and Cricut Inc. The leading firms are Rossi, Kimms & McDowell LLP, Venable LLP, and BIRCH STEWART KOLASCH & BIRCH, LLP. Counsel may emphasize clear written claim distinctions and reserve interviews for issues that require direct clarification.

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

Performance Statistics

71.8%
Allow Rate
+1.8% vs TC avg
902
Total Applications
+12.6%
Interview Lift
993
Avg Prosecution Days
Based on 876 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
24.5%
§102 Novelty
54.2%
§103 Obviousness
15.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19303974 IMAGE FORMING APPARATUS AND CONTROL METHOD OF IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
19171879 IMAGE FORMING APPARATUS AND INFORMATION PROCESSING DEVICE Non-Final OA CANON KABUSHIKI KAISHA
19093580 IMAGE FORMING APPARATUS FOR FORMING TONER IMAGE FOR ADHERING FOIL ONTO SHEET Non-Final OA CANON KABUSHIKI KAISHA
19093553 IMAGE FORMING APPARATUS FOR FORMING TONER IMAGE FOR ADHERING FOIL ONTO SHEET Non-Final OA CANON KABUSHIKI KAISHA
19054248 SHEET CONVEYANCE APPARATUS, IMAGE READING APPARATUS, AND IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
19050506 IMAGE FORMING APPARATUS Final Rejection CANON KABUSHIKI KAISHA

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Frequently Asked Questions

What is examiner David H Banh's allowance rate?

71.8% of resolved applications examined by David H Banh were allowed (876 resolved cases), compared with 72.0% across Art Unit 2627 over the last five years.

Does an interview help with examiner David H Banh?

This examiner's interview lift is +12.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner David H Banh take to allow a patent?

Applications allowed by David H Banh took 993 days on average from filing to allowance.

Which art unit does examiner David H Banh work in?

David H Banh examines applications in Art Unit 2627 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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