Prosecution Insights
Last updated: October 27, 2026

Alan Lindsay Ostrow, USPTO Patent Examiner

Listed by the USPTO as OSTROW, ALAN LINDSAY

Tech Center 3600 • Art Units: 3657 3664

This examiner grants 73% of resolved cases

Analysis

Alan Lindsay Ostrow serves in Tech Center 3600 and Art Unit 3657, where they have handled 52 resolved cases. The examiner's allowance rate is 73.1 percent, suggesting a generally positive outlook for patent applicants. The median days to allowance is 971, which indicates a relatively efficient timeline for the prosecution process.

The data highlights an interview lift of 24.1 percent, indicating that direct dialogue with the examiner is a highly effective method for overcoming rejections. This lift can significantly enhance the 73.1 percent baseline chance of success. Top companies such as Canon Inc., Sanctuary Cognitive Systems Corporation, and Casio Computer Co., Ltd. are prominent in this examiner's records. Firms like CANTOR COLBURN LLP, Erise IP, P.A., and HOLTZ, HOLTZ & VOLEK PC are among the most active representatives, leveraging the 971-day median pendency to achieve favorable outcomes for their clients. The 52 resolved cases provide the foundation for these metrics in Art Unit 3657.

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

Performance Statistics

73.1%
Allow Rate
+21.1% vs TC avg
74
Total Applications
+24.1%
Interview Lift
971
Avg Prosecution Days
Based on 52 resolved cases, 2023–2026

Rejection Statute Breakdown

14.0%
§101 Eligibility
16.7%
§102 Novelty
58.8%
§103 Obviousness
10.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19281397 SYSTEM, MANUFACTURING METHOD, CONTROLLING METHOD, PROGRAM, AND RECORDING MEDIUM Non-Final OA CANON KABUSHIKI KAISHA
19273331 DATA SUPPLY DEVICE, STORAGE MEDIUM, AND DATA SUPPLY METHOD Non-Final OA CANON KABUSHIKI KAISHA
17602720 PROCESSING SYSTEM, PROCESSING METHOD, ROBOT SYSTEM, CONNECTING APPARATUS AND END EFFECTOR APPARATUS Final Rejection NIKON CORPORATION
18686363 TRAINED MODEL GENERATION METHOD, TRAINED MODEL GENERATION DEVICE, TRAINED MODEL, AND HOLDING MODE INFERENCE DEVICE Non-Final OA KYOCERA Corporation
19156513 MOBILE ROBOTIC DEVICES AND SYSTEMS Non-Final OA The Trustees of Princeton University

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Frequently Asked Questions

What is examiner Alan Lindsay Ostrow's allowance rate?

73.1% of resolved applications examined by Alan Lindsay Ostrow were allowed (52 resolved cases), compared with 65.5% across Art Unit 3657 over the last five years.

Does an interview help with examiner Alan Lindsay Ostrow?

This examiner's interview lift is +24.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Alan Lindsay Ostrow take to allow a patent?

Applications allowed by Alan Lindsay Ostrow took 971 days on average from filing to allowance.

Which art unit does examiner Alan Lindsay Ostrow work in?

Alan Lindsay Ostrow examines applications in Art Unit 3657 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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