Prosecution Insights
Last updated: October 28, 2026

Inja Song, USPTO Patent Examiner

Listed by the USPTO as SONG, INJA

Tech Center 3700 • Art Units: 1744 2853 3711 3732 3783

This examiner grants 66% of resolved cases

Analysis

SONG, INJA works in tech center 3700 and art unit 1744. The profile covers 227 resolved cases, with an allowance rate of 66.5% and a median of 1030 days to allowance. The smaller case volume makes the record more limited than a high-volume examiner profile, but it still provides a meaningful basis for prosecution planning.

The interview lift is 47.7%, which is a significant feature of the available record and supports considering examiner interviews as part of case strategy. Stratasys Ltd., Canon Inc., and The Boeing Company are the principal companies listed. The leading firms are APEX JURIS, PLLC, CANTOR COLBURN LLP, and Chrisman Gallo Tochtrop LLC.

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

Performance Statistics

66.5%
Allow Rate
-3.5% vs TC avg
265
Total Applications
+47.7%
Interview Lift
1030
Avg Prosecution Days
Based on 227 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
12.3%
§102 Novelty
48.0%
§103 Obviousness
35.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18363957 FILM FORMING APPARATUS, FILM FORMING METHOD, MANUFACTURING METHOD OF ARTICLE, AND STORAGE MEDIUM Final Rejection CANON KABUSHIKI KAISHA
18323750 METHODS OF ADDITIVELY MANUFACTURING A MANUFACTURED COMPONENT, ADDITIVE MANUFACTURING SYSTEMS THAT PERFORM THE METHODS, AND STORAGE MEDIA THAT DIRECTS ADDITIVE MANUFACTURING SYSTEMS TO PERFORM THE METHODS Non-Final OA The Boeing Company
19265509 PRESSURE VESSEL AND METHOD OF MANUFACTURING PRESSURE VESSEL Non-Final OA KIA CORPORATION
18682731 UNDRAWN MULTIFILAMENT, METHOD FOR PRODUCING THE SAME, MULTIFILAMENT, METHOD FOR PRODUCING THE SAME, STAPLE, AND METHOD FOR PRODUCING THE SAME Non-Final OA KANEKA CORPORATION
17600322 ADDITIVE MANUFACTURING OF AN OBJECT MADE OF A POLYUREA MATERIAL Non-Final OA Stratasys Ltd.
18583995 WATER DISPERSIBLE SULFONATED THERMOPLASTIC COPOLYMER FOR USE IN ADDITIVE MANUFACTURING Non-Final OA Stratasys, Inc.
18490614 PHOTOTHERMAL CURING OF THERMOSET RESINS Final Rejection The Penn State Research Foundation
19059484 STIRRING AND FEEDING APPARATUS, FEEDING METHOD, AND PRODUCTION METHOD OF FIBROUS FILLER, AND PRODUCTION METHOD OF THERMOPLASTIC RESIN COMPOSITION Non-Final OA Mitsubishi Chemical Corporation
18533023 THREE-DIMENSIONAL PRINTED THERMAL EXPANSION STRUCTURE MANUFACTURING METHOD Final Rejection Bauer Hockey, LLC
18764235 MULTI-TECHNOLOGY PRINTING SYSTEM Non-Final OA PRECISE BIO 3D LTD

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Frequently Asked Questions

What is examiner Inja Song's allowance rate?

66.5% of resolved applications examined by Inja Song were allowed (227 resolved cases), compared with 48.7% across Art Unit 1744 over the last five years.

Does an interview help with examiner Inja Song?

This examiner's interview lift is +47.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Inja Song take to allow a patent?

Applications allowed by Inja Song took 1,030 days on average from filing to allowance.

Which art unit does examiner Inja Song work in?

Inja Song examines applications in Art Unit 1744 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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