Prosecution Insights
Last updated: April 19, 2026

Examiner: KOSACK, JOSEPH R

Tech Center 3900 • Art Units: 1626 3991

This examiner grants 75% of resolved cases

Performance Statistics

74.9%
Allow Rate
+14.9% vs TC avg
1301
Total Applications
-5.9%
Interview Lift
1009
Avg Prosecution Days
Based on 1285 resolved cases, 2023–2026

Rejection Statute Breakdown

2.7%
§101 Eligibility
24.9%
§102 Novelty
26.2%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18199216 NITROGEN-CONTAINING HETEROCYCLIC COMPOUND AND USE OF SAME Final Rejection Takeda Pharmaceutical Company Limited
18014469 LIGHT-EMITTING DEVICE AND INSOLUBLE FILM Non-Final OA SHARP KABUSHIKI KAISHA
18020478 COMPOUND FOR ORGANIC OPTOELECTRONIC ELEMENT, COMPOSITION FOR ORGANIC OPTOELECTRONIC ELEMENT, ORGANIC OPTOELECTRONIC ELEMENT, AND DISPLAY DEVICE Non-Final OA SAMSUNG SDI CO., LTD.
18070855 ULTRA-THIN FABRIC, DEVICES, AND METHODS Final Rejection ATEX Technologies, Inc.
18107623 SPIROFLUORENE SILICON COMPOUND AND ELECTROLUMINESCENCE USING THE SAME Non-Final OA Shanghai Tianma Micro-Electronics Co., Ltd.
18003595 Compound of Formula (I), a Semiconductor Material Comprising at Least One Compound of Formula (I), a Semiconductor Layer Comprising at Least One Compound of Formula (I) and an Electronic Device Comprising at Least One Compound of Formula (I) Non-Final OA Novaled GmbH
18377756 STABILISED PROTEIN COMPOSITIONS BASED ON SEMIFLUORINATED ALKANES Non-Final OA NOVALIQ GMBH
18235295 Bolus Dose of Hydroxycitric Acid with Glycerol Non-Final OA GLYKON TECHNOLOGIES GROUP, LLC

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