Prosecution Insights
Last updated: May 29, 2026

Examiner: LANKFORD JR, LEON B

Tech Center 1600 • Art Units: 1651 1657 1692

This examiner grants 70% of resolved cases

Performance Statistics

69.8%
Allow Rate
+9.8% vs TC avg
754
Total Applications
+31.0%
Interview Lift
1357
Avg Prosecution Days
Based on 726 resolved cases, 2023–2026

Rejection Statute Breakdown

4.6%
§101 Eligibility
6.1%
§102 Novelty
60.3%
§103 Obviousness
19.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18294902 Compositions, Systems and Methods for Atom Transfer Radical Addition Reaction Non-Final OA The Regents of the University of California
18268177 MEANS AND METHODS FOR MANUFACTURING RACEMIC ALANINE FOR THE MGDA SYNTHESIS Non-Final OA BASF SE
18236366 TRAINED NEURONAL CELL CULTURES FOR DRUG TESTING Non-Final OA MICROSOFT TECHNOLOGY LICENSING, LLC
18284239 COMPOSITION FOR ENHANCING PHYSIOLOGICAL EFFICACY OF LACTIC ACID BACTERIA Final Rejection SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
17600931 DUAL ANTIGEN-RECOGNIZING iPS CELL-DERIVED CHIMERIC ANTIGEN RECEPTOR-T-CELL THERAPY Non-Final OA THE UNIVERSITY OF TOKYO
18690537 POLYSACCHARIDE OR POLYSACCHARIDE MIXTURE PRODUCED BY PAENIBACILLUS POLYMYXA Non-Final OA Technische Universität München
18775257 HUMAN IPSC-DERIVED VASCULAR-RELATED AND HEMATOPOETIC CELLS FOR THERAPIES AND TOXICOLOGY/DRUG SCREENINGS Final Rejection The USA, as represented by the Secretary, Department of Health and Human Services
18621330 NOVEL PROTEASES AND USES THEREOF Non-Final OA CARBIOS
18546864 DNASE 1-LIKE 2 ENGINEERED FOR MANUFACTURING AND USE IN THERAPY Non-Final OA Neutrolis, Inc
18451280 CELL PENETRATING PEPTIDE, CONJUGATE COMPRISING SAME, AND COMPOSITION COMPRISING CONJUGATE Non-Final OA GemVax & KAEL CO., LTD.
17789378 APPLICATION OF CST1 IN PREVENTION AND/OR TREATMENT OF LIVER IMMUNE DYSREGULATION DISEASES Non-Final OA CENTER FOR EXCELLENCE IN MOLECULAR CELL SCIENCE, CHINESE ACADEMY OF SCIENCES
18330510 CORNEAL ENDOTHELIUM ECM THERAPEUTIC MEDICAMENTS Final Rejection SENJU PHARMACEUTICAL CO., LTD.
18035549 METHODS FOR SYSTEMATICALLY ASSESSING LOCAL INFLAMMATION AND ACTIVE REPAIR Non-Final OA KEYINTEL MEDICAL INC.
17747468 Inhibitors of DREAM Complex Assembly and/or Function For Use In Repairing DNA Damage Non-Final OA Björn Schumacher

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