Prosecution Insights
Last updated: April 19, 2026

Examiner: KNIGHT, TERESA E

Tech Center 1600 • Art Units: 1631 1632 1634 1657

This examiner grants 65% of resolved cases

Performance Statistics

64.6%
Allow Rate
+4.6% vs TC avg
498
Total Applications
+50.4%
Interview Lift
1354
Avg Prosecution Days
Based on 475 resolved cases, 2023–2026

Rejection Statute Breakdown

7.6%
§101 Eligibility
17.3%
§102 Novelty
40.8%
§103 Obviousness
22.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18062992 CELL PROCESSING METHOD AND CELL PROCESSING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
18285006 METHOD FOR PRODUCING CELL SHEET Non-Final OA KANEKA CORPORATION
18311459 SPATIALLY CONTROLLED FABRICATION OF MULTI-SPHEROID TISSUES USING MAGNETIC BIOPRINTING Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18036284 EARLY MESENCHYMAL STEM CELLS WITH REDUCED AGING AND PRESERVED STEM CELL ABILITY, AND CULTURING METHOD THEREFOR Non-Final OA SAMSUNG LIFE PUBLIC WELFARE FOUNDATION
18029863 ORGANOID RECOMBINATION Non-Final OA CHILDREN'S HOSPITAL MEDICAL CENTER
17907122 SUPPORTING BATH FOR THREE-DIMENSIONAL (3D) TISSUE CULTURE Non-Final OA OSAKA UNIVERSITY
18256801 NOVEL HUMAN ERYTHROID PROGENITOR CELL LINE HIGHLY PERMISSIVE TO B19 INFECTION AND USES THEREOF Non-Final OA LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
18539055 THREE DIMENSIONAL TISSUE COMPOSITIONS AND METHODS OF USE Non-Final OA Avery Therapeutics, Inc.
18383601 Extracranial Methods For Facilitating Cerebrospinal Fluid Drainage Non-Final OA Korea Advanced Institute of Science & Technology
18490773 ENGINEERED MITOCHONDRIA AND PREPARATION METHOD THEREOF Non-Final OA CHONGQING UNIVERSITY OF TECHNOLOGY
18482493 METHODS OF MODULATING CELL PHENOTYPE BY WAY OF REGULATING THE GASEOUS ENVIRONMENT Non-Final OA XCELL BIOSCIENCES, INC.
18548360 HYDROGEL-BASED STAMPING FOR SOLUTION-FREE BLOOD CELL STAINING Non-Final OA NOUL CO., LTD.
17696904 MEMBRANE AND METHOD FOR CULTURE AND DIFFERENTIATION OF CELLS Final Rejection OUJIANG LABORATORY
18036815 SECRETOME FRACTIONS AND USES THEREOF Non-Final OA NOVEOME BIOTHERAPEUTICS, INC.
18304305 CELL CULTURE METHOD AND CELL CULTURE DEVICE USED WITH CELL CULTURE METHOD Non-Final OA YAMAGUCHI UNIVERSITY
18041174 COMPOSITIONS AND METHODS FOR EMBRYONIC STEM CELL EXPANSION Non-Final OA LINEAGE CELL THERAPEUTICS, INC.
18077038 METHODS AND COMPOSITIONS FOR IMPROVING ENDOTHELIAL CELL BARRIER Non-Final OA United Therapeutics Corporation
17968631 MESENCHYMAL STEM CELL COMPOSITIONS AND METHODS OF MAKING Non-Final OA Vitti Labs

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