Prosecution Insights
Last updated: October 27, 2026

Ket D Dang, USPTO Patent Examiner

Listed by the USPTO as DANG, KET D

Tech Center 3700 • Art Units: 1792 2893 2898 3742 3761

This examiner grants 62% of resolved cases

Analysis

DANG, KET D is a Tech Center 3700 examiner in Art Unit 1792 with 691 resolved cases. The allowance rate is 61.6%, and the median time to allowance is 1489 days. The prosecution record supports advance planning for a process that may require sustained attention and carefully sequenced claim revisions.

The interview lift is 37.9%, reflecting a positive association with interviews. Applicants may consider an interview when direct discussion can clarify the examiner’s position and narrow the issues for a written response.

Appliance Innovation, Inc., Sony Group Corporation, and Toyota Motor Corporation are the listed companies. AMSTER, ROTHSTEIN & EBENSTEIN LLP, Batt IP, and BIRCH STEWART KOLASCH & BIRCH, 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

61.6%
Allow Rate
-8.4% vs TC avg
719
Total Applications
+37.9%
Interview Lift
1489
Avg Prosecution Days
Based on 691 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
11.9%
§102 Novelty
51.2%
§103 Obviousness
31.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17780794 INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD Non-Final OA SONY GROUP CORPORATION
18426608 HYDROGEN SUPPLY DEVICE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
17996944 SYSTEM FOR CALIBRATION OF ROASTING APPARATUSES Final Rejection SOCIETE DES PRODUITS NESTLE S.A.
18099712 SELECTIVELY RELEASING CARBON DIOXIDE FROM A GAS SOURCE IN A CARBONATION SYSTEM Non-Final OA SharkNinja Operating LLC
17959437 ICE AND SNOW WARNING AND REMOVAL FOR ELECTRIFIED VEHICLES Final Rejection FORD GLOBAL TECHNOLOGIES, LLC
18405684 POWER SUPPLY UNIT OF AEROSOL GENERATING DEVICE Non-Final OA JAPAN TOBACCO INC.
18416469 METHOD AND APPARATUS FOR BREWING, MIXING, AND DELIVERING A BEVERAGE Non-Final OA Appliance Innovation, Inc.
18099485 METHOD AND APPARATUS FOR BREWING, MIXING, AND DELIVERING A BEVERAGE Non-Final OA Appliance Innovation, Inc.

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Frequently Asked Questions

What is examiner Ket D Dang's allowance rate?

61.6% of resolved applications examined by Ket D Dang were allowed (691 resolved cases), compared with 22.9% across Art Unit 1792 over the last five years.

Does an interview help with examiner Ket D Dang?

This examiner's interview lift is +37.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Ket D Dang take to allow a patent?

Applications allowed by Ket D Dang took 1,489 days on average from filing to allowance.

Which art unit does examiner Ket D Dang work in?

Ket D Dang examines applications in Art Unit 1792 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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