Prosecution Insights
Last updated: October 27, 2026

Mark Hellner, USPTO Patent Examiner

Listed by the USPTO as HELLNER, MARK

Tech Center 4100 • Art Units: 3645 3663 4100

This examiner grants 90% of resolved cases

Analysis

HELLNER, MARK is assigned to tech center 4100 and art unit 3645. The profile covers 1,513 resolved cases, with an allowance rate of 90.4%. The median time to allowance is 976 days, and interviews correspond with an 8.6% lift. The record indicates a high allowance rate with a modest reported interview effect.

Canon Inc., Waymo LLC, and Luminar Technologies Inc. are the represented companies. The listed firms are MBHB - Waymo, VAN PELT, YI & JAMES LLP AND LUMINAR, and Venable LLP. Practitioners may focus on preserving useful claim scope and responding efficiently to examiner concerns, using interviews to clarify issues without making them the primary prosecution mechanism.

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

Performance Statistics

90.4%
Allow Rate
+30.4% vs TC avg
1,561
Total Applications
+8.6%
Interview Lift
976
Avg Prosecution Days
Based on 1513 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
29.3%
§102 Novelty
44.0%
§103 Obviousness
13.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18760113 DISTANCE MEASUREMENT DEVICE Non-Final OA FUJIFILM CORPORATION
18887199 DISTANCE MEASUREMENT DEVICE AND EQUIPMENT Non-Final OA CANON KABUSHIKI KAISHA
18883111 RANGING APPARATUS, RANGING SYSTEM, MOVING BODY, AND DEVICE Non-Final OA CANON KABUSHIKI KAISHA
18761080 PHOTOELECTRIC CONVERSION APPARATUS AND OPTICAL DETECTION SYSTEM Non-Final OA CANON KABUSHIKI KAISHA
18611907 LIDAR CLEANING SYSTEM Non-Final OA Robert Bosch GmbH
18684242 LIGHT-EMITTING DEVICE AND RANGING DEVICE Non-Final OA SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18551899 SYSTEM AND METHOD FOR IMAGING IN THE OPTICAL DOMAIN Non-Final OA CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
18787139 OBJECT DETECTION APPARATUS AND OBJECT DETECTION METHOD Non-Final OA DENSO CORPORATION
19107107 FMCW LIDAR SYSTEM, ELECTRONIC DEVICE AND METHOD FOR DRIVING A LIDAR SYSTEM Non-Final OA ams International AG
19113673 LIDAR DEVICE, OPERATING METHOD, AND METHOD FOR GENERATING INFORMATION THEREOF Non-Final OA LG INNOTEK CO., LTD.
18680905 Compact LiDAR Sensor Non-Final OA Yinwang Intelligent Technologies Co., Ltd.
18959920 Systems and Methods for Occlusion Detection Non-Final OA Waymo LLC
18779594 Light Detection using an Aperture Non-Final OA Waymo LLC
18760760 SYSTEM AND METHOD FOR DETERMINING RANGES TO A TARGET BEHIND A TRANSPARENT SURFACE Final Rejection Aeva, Inc.
18897325 METHOD TO IMPROVE MEASUREMENT ACCURACY FOR BEAM SCANNING APPLICATION Non-Final OA Lumentum Operations LLC

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Frequently Asked Questions

What is examiner Mark Hellner's allowance rate?

90.4% of resolved applications examined by Mark Hellner were allowed (1,513 resolved cases), compared with 67.5% across Art Unit 3645 over the last five years.

Does an interview help with examiner Mark Hellner?

This examiner's interview lift is +8.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mark Hellner take to allow a patent?

Applications allowed by Mark Hellner took 976 days on average from filing to allowance.

Which art unit does examiner Mark Hellner work in?

Mark Hellner examines applications in Art Unit 3645 in Tech Center 4100.

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