Prosecution Insights
Last updated: October 02, 2026

Examiner: SONG, HIMCHAN

Tech Center 3700 • Art Units: 3658 3731 3761

This examiner grants 86% of resolved cases

Analysis

Himchan Song is an examiner in Art Unit 3658 of Tech Center 3700. He has 264 resolved cases with an allowance rate of 86.4%. The median days to allowance is 864, which is an efficient timeframe for this tech center.

The interview lift is 12.2%. This indicates that interviews provide a helpful boost to the already high 86.4% allowance rate. Practitioners should find this examiner to be both efficient and receptive, with the 864-day median pendency serving as a reliable guide for planning. The 264 resolved cases suggest a consistent and predictable examination style. Using the 12.2% lift can help resolve any minor issues and ensure the application stays on its 864-day track toward allowance. This examiner's data reflects a high level of productivity and a favorable outcome rate for applicants in this specific art unit.

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

Performance Statistics

86.4%
Allow Rate
+16.4% vs TC avg
275
Total Applications
+12.2%
Interview Lift
864
Avg Prosecution Days
Based on 264 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
27.1%
§102 Novelty
39.1%
§103 Obviousness
31.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19421666 Hand-Held Power Tool Non-Final OA Robert Bosch GmbH
19422918 A METHOD FOR MANUFACTURING A PATCHING SHEET AND A CARDBOARD PROCESSING SYSTEM Non-Final OA BOBST MEX SA
19109013 MACHINE FOR FORMING FILTER BAGS FOR INFUSION PRODUCTS Non-Final OA I.M.A. INDUSTRIA MACCHINE AUTOMATICHE S.P.A.
19243338 HIGH EFFICIENCY PHARMACEUTICAL FILLING LINE Non-Final OA CORNING INCORPORATED

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