Prosecution Insights
Last updated: October 27, 2026

Leo B Tentoni, USPTO Patent Examiner

Listed by the USPTO as TENTONI, LEO B

Tech Center 3700 • Art Units: 1742 1743 1744 1754 1781 1787 1791 3643 3783

This examiner grants 82% of resolved cases

Analysis

TENTONI, LEO B handles cases in Tech Center 3700 and art unit 1742. The record shows 1423 resolved cases, an 81.9% allowance rate, and a median of 1012 days to allowance. The interview lift is 10.1%, providing a positive but modest association compared with the profile's overall allowance result.

The leading companies are Stratasys Ltd., RTX Corporation, and The Ohio State University. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, Element IP, PLC, and Ewing & Jones, PLLC. The very large docket supports using the profile as a substantial planning reference, with efficient written prosecution and selective interviews likely to be practical priorities.

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

Performance Statistics

81.9%
Allow Rate
+11.9% vs TC avg
1,450
Total Applications
+10.1%
Interview Lift
1012
Avg Prosecution Days
Based on 1423 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
19.4%
§102 Novelty
50.1%
§103 Obviousness
19.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19183270 ADDITIVE MANUFACTURING WITH MATERIAL LAYERS Non-Final OA Align Technology, Inc.
18777701 DEVICE TO CREATE REPRODUCIBLE FENESTRATIONS IN A NON-VALVED TUBE SHUNT Non-Final OA Ohio State Innovation Foundation
19104562 METHOD FOR OBTAINING GOOD ADHESION OF SEMI CRYSTALLINE POLYMERS TO THE BUILD PLATE DURING FDM PRINTING Non-Final OA SIGNIFY HOLDING B.V.
17999570 SHAPING QUALITY EVALUATION METHOD IN LAMINATING AND SHAPING, LAMINATING AND SHAPING SYSTEM, INFORMATION PROCESSING APPARATUS, AND PROGRAM Non-Final OA NIKON CORPORATION
18699015 LIQUID CRYSTAL POLYESTER FIBERS AND METHOD FOR PRODUCING SAME Non-Final OA KURARAY CO., LTD.
19024014 SPECIAL TOOLING FOR FABRICATING VANES Final Rejection RTX CORPORATION
19303401 ADDITIVE MANUFACTURING OF DENTAL PROSTHESES Non-Final OA Stratasys Ltd.
18859564 METHOD AND SYSTEM FOR THREE-DIMENSIONAL PRINTING ON FABRIC Non-Final OA Stratasys Ltd.
19081965 ECO-FRIENDLY, SUSTAINABLE, LIGHTWEIGHT, POROUS CELLULOSE SPONGE FOR CROP GROWTH Non-Final OA ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

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Frequently Asked Questions

What is examiner Leo B Tentoni's allowance rate?

81.9% of resolved applications examined by Leo B Tentoni were allowed (1,423 resolved cases), compared with 58.3% across Art Unit 1742 over the last five years.

Does an interview help with examiner Leo B Tentoni?

This examiner's interview lift is +10.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Leo B Tentoni take to allow a patent?

Applications allowed by Leo B Tentoni took 1,012 days on average from filing to allowance.

Which art unit does examiner Leo B Tentoni work in?

Leo B Tentoni examines applications in Art Unit 1742 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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