Prosecution Insights
Last updated: October 27, 2026

Daniel Previl, USPTO Patent Examiner

Listed by the USPTO as PREVIL, DANIEL

Tech Center 3700 • Art Units: 2612 2684 2685 2844 3761 3791 3792 3796

This examiner grants 86% of resolved cases

Analysis

PREVIL, DANIEL examines in Tech Center 3700 and Art Unit 2612. The profile is based on 1583 resolved cases, an 85.8% allowance rate, and a 775-day median time to allowance. The 12.5% interview lift is positive, providing support for interviews as a useful but not exclusive prosecution tool.

Apple Inc., Toyota Motor Corporation, and State Farm Mutual Automobile Insurance Company are the leading companies. The listed firms are MARSHALL, GERSTEIN & BORUN LLP, FOLEY & LARDNER LLP, and HARNESS DICKEY (DETROIT).

The substantial case volume makes the profile useful for portfolio-level planning. Applicants can expect many matters to reach allowance, while the median timing still favors early attention to response quality and claim hierarchy. Interviews may be most valuable when they narrow a dispute without sacrificing commercially important scope.

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

Performance Statistics

85.8%
Allow Rate
+15.8% vs TC avg
1,625
Total Applications
+12.5%
Interview Lift
775
Avg Prosecution Days
Based on 1583 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
9.6%
§102 Novelty
55.7%
§103 Obviousness
16.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19197453 ELECTRONIC SYSTEM FOR PRODUCING A COORDINATED OUTPUT USING WIRELESS LOCALIZATION OF MULTIPLE PORTABLE ELECTRONIC DEVICES Non-Final OA Apple Inc.
19233529 NOTIFICATION METHOD, NOTIFICATION SYSTEM, AND VEHICLE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19193139 SYSTEMS AND METHODS FOR DETECTING WATER DAMAGE USING ENERGY-HARVESTING SENSORS Non-Final OA STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY
18290554 BATTERY OPERATION MANAGEMENT SYSTEM AND OPERATING METHOD THEREOF Non-Final OA LG ENERGY SOLUTION, LTD.
18745252 Method and device for locating an optical fiber Non-Final OA ORANGE
18731953 METHOD AND APPARATUS FOR DETERMINING A TRAILER DIMENSION OF A MOTOR VEHICLE-TRAILER COMBINATION Non-Final OA KIA CORPORATION
18502326 WEARABLE BIOMETRIC SENSORS Non-Final OA HID Global Corp.
18963166 MOBILE PATIENT ALARM DISPLAY Final Rejection Masimo Corporation
18880761 TIRE AND POWER FEED SYSTEM Non-Final OA THE YOKOHAMA RUBBER CO., LTD.

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Frequently Asked Questions

What is examiner Daniel Previl's allowance rate?

85.8% of resolved applications examined by Daniel Previl were allowed (1,583 resolved cases), compared with 70.3% across Art Unit 2612 over the last five years.

Does an interview help with examiner Daniel Previl?

This examiner's interview lift is +12.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Daniel Previl take to allow a patent?

Applications allowed by Daniel Previl took 775 days on average from filing to allowance.

Which art unit does examiner Daniel Previl work in?

Daniel Previl examines applications in Art Unit 2612 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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