Prosecution Insights
Last updated: October 27, 2026

Kurt Philip Liethen, USPTO Patent Examiner

Listed by the USPTO as LIETHEN, KURT PHILIP

Tech Center 3700 • Art Units: 3661 3747

This examiner grants 80% of resolved cases

Analysis

LIETHEN, KURT PHILIP works in USPTO tech center 3700 and art unit 3661. Across 459 resolved cases, the allowance rate is 79.7%, the interview lift is 9.3%, and the median time to allowance is 812 days. The substantial record provides useful context for the outcome measures, while the interview figure indicates a modest observed relationship.

HL Klemove Corp., Toyota Motor Corporation, and Crrc Changchun Railway Vehicles Co. Ltd. are the leading companies. BUCHANAN, INGERSOLL & ROONEY PC, CANTOR COLBURN LLP, and Cantor Colburn LLP - General Motors are the listed firms. The automotive and transportation focus supports careful treatment of system architecture, functional limitations, and technical distinctions during prosecution.

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

Performance Statistics

79.7%
Allow Rate
+9.7% vs TC avg
486
Total Applications
+9.3%
Interview Lift
812
Avg Prosecution Days
Based on 459 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
21.2%
§102 Novelty
56.5%
§103 Obviousness
18.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19000241 COLLISION MODE PREDICTION DEVICE AND OCCUPANT PROTECTANT SYSTEM Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19064949 METHOD AND SYSTEM FOR CONTROLLING VEHICLE IN CASE OF REDUCTION IN RELIABILITY OF LANE INFORMATION Non-Final OA HL Klemove Corp.
18229852 APPARATUS FOR DRIVING ASSISTANCE, VEHICLE INCLUDING THE SAME, AND METHOD FOR DRIVING ASSISTANCE Non-Final OA HL Klemove Corp.
18775037 SYSTEM AND METHOD FOR PARKING CONTROL OF VEHICLE Final Rejection Kia Corporation
18994188 CONTROL METHOD FOR VEHICLE AND DEVICE Non-Final OA NISSAN MOTOR CO., LTD.
18541276 SYSTEM AND METHODS FOR DELIVERING FUELING PLANS Non-Final OA Adeia Guides Inc.
18861292 METHOD FOR CONTROLLING AN ELECTRODYNAMIC BRAKE APPARATUS OF A RAIL VEHICLE Non-Final OA Siemens Mobility GmbH
19267294 VEHICLE CONTROL METHOD WITH STEERING ANGLE CORRECTION Non-Final OA ZF CV Systems Global GmbH
18747911 INTEGRATED BRAKING INTERFACE DEVICE Non-Final OA Infineon Technologies AG
18758000 EVAPORATED FUEL TREATMENT DEVICE AND MANUFACTURING METHOD OF EVAPORATED FUEL TREATMENT DEVICE Final Rejection FUTABA INDUSTRIAL CO., LTD.
18982376 CONTROL OF VEHICLE AERODYNAMIC ASSEMBLY HAVING PASSIVE DEPLOYMENT MECHANISM Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC

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Frequently Asked Questions

What is examiner Kurt Philip Liethen's allowance rate?

79.7% of resolved applications examined by Kurt Philip Liethen were allowed (459 resolved cases), compared with 77.3% across Art Unit 3661 over the last five years.

Does an interview help with examiner Kurt Philip Liethen?

This examiner's interview lift is +9.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kurt Philip Liethen take to allow a patent?

Applications allowed by Kurt Philip Liethen took 812 days on average from filing to allowance.

Which art unit does examiner Kurt Philip Liethen work in?

Kurt Philip Liethen examines applications in Art Unit 3661 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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