Prosecution Insights
Last updated: April 19, 2026

Examiner: NGUYEN, NGHI V

Tech Center 1600 • Art Units: 1641 1653 1699

This examiner grants 54% of resolved cases

Performance Statistics

53.8%
Allow Rate
-6.2% vs TC avg
520
Total Applications
+50.2%
Interview Lift
1391
Avg Prosecution Days
Based on 478 resolved cases, 2023–2026

Rejection Statute Breakdown

5.4%
§101 Eligibility
18.0%
§102 Novelty
42.8%
§103 Obviousness
17.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18557836 METHOD FOR PRODUCING CELLS Non-Final OA Takeda Pharmaceutical Company Limited
18375035 A METHOD OF PRODUCING A CARDIOMYOCYTE SPHEROID Non-Final OA KANEKA CORPORATION
17960655 PRODUCTS AND METHODS TO ISOLATE MITOCHONDRIA Final Rejection Beth Israel Deaconess Medical Center, Inc.
17434912 A NUTRITIONAL COMPOSITION FOR USE TO ENHANCE EXECUTIVE FUNCTION Final Rejection SOCIETE DES PRODUITS NESTLE S.A.
18034278 FIXATIVE COMPOSITIONS AND METHODS OF PRESERVING BIOLOGICAL SAMPLES Non-Final OA UNIVERSITY HEALTH NETWORK
17915086 METHODS, COMPOSITIONS, AND SYSTEMS FOR ENHANCING EX-VIVO ORGAN PERFUSION Non-Final OA University Health Network
17908810 METHODS AND SYSTEMS TO PRINT AND MATURE TISSUES OVER TIME IN A THREE-DIMENSIONAL SUPPORT MATRIX Non-Final OA The General Hospital Corporation
18267230 METHOD FOR MASS PRODUCTION OF HIGHLY PURE, STEM CELL-DERIVED EXTRACELLULAR VESICLE BY USING PEPTIDE Non-Final OA KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORP
18342676 METHODS OF GENERATING MYCELIAL SCAFFOLDS AND APPLICATIONS THEREOF Non-Final OA Ecovative LLC
17769663 BIOLOGICALLY SYNTHESIZED HYDROXYAPATITE FOR BONE REGENERATION AND TISSUE ENGINEERING Non-Final OA BIOVENTURES, LLC
18310510 GENERATING ARTERIAL ENDOTHELIAL CELL POPULATIONS Non-Final OA WISCONSIN ALUMNI RESEARCH FOUNDATION
18459381 CELL CULTURE PROCESS Non-Final OA Pfizer Inc.
17560680 ENHANCED DIFFERENTIATION OF BETA CELLS Non-Final OA Vertex Pharmaceuticals Incorporated
18234470 METHODS FOR CELL EXPANSION, DIFFERENTIATION, AND/OR HARVESTING OF NATURAL KILLER CELLS USING HOLLOW-FIBER MEMBRANES Non-Final OA Terumo BCT, Inc.
18038489 COMPOSITION OF PREDATORY NEMATODES AND METHODS OF USING SAME Non-Final OA The State of Israel, Ministry of Agriculture & Rural Development, Agricultural Research Organization
18264396 MESENCHYMAL STEM CELLS AND ADIPOCYTES FOR PREPARING MITOKINE MIXTURE, AND THERAPEUTIC OR PROPHYLACTIC DRUG Non-Final OA TOKYO UNIVERSITY OF SCIENCE FOUNDATION
18556783 MESENCHYMAL STEM CELLS HAVING ENHANCED OSTEOGENIC DIFFERENTIATION CAPACITY, AND USE THEREOF Non-Final OA SUNGKWANG MEDICAL FOUNDATION
18553904 METHOD FOR PRODUCING CELL GROWTH MEDIUM Non-Final OA Solar Foods Oyj
18551075 STEM CELLS FOR USE IN REDUCING THE IMMUNE RESPONSE FOLLOWING ORGAN TRANSPLANTATION Non-Final OA Amniotics AB
18452726 SKIN TISSUE Final Rejection THE UNIVERSITY OF DURHAM
18363642 PREVENTION AND TREATMENT OF REPRODUCTIVE FAILURE BY REGENERATIVE CELLS AND ADJUVANTS Non-Final OA CREATIVE MEDICAL TECHNOLOGIES, INC.
17771290 PROTEIN-BASED BIOMATERIAL WITH VISCOELASTIC BEHAVIOUR, PROCESS FOR OBTAINING IT AND USES THEREOF Non-Final OA INSERM - Institut National de la Santé et de la Recherche Médicale
18256866 PHARMACEUTICAL COMPOSITION INCLUDING ADIPOSE-DERIVED REGENERATIVE CELLS (ADRCS) FOR USE IN PREVENTION AND TREATMENT OF LIVER FIBROSIS OR LIVER CIRRHOSIS Non-Final OA CYTORI THERAPEUTICS K.K.
18039381 OPTOGENETIC MODULATION OF ACTION-POTENTIAL PROPERTIES Non-Final OA RAMBAN MEDTECH LTD.
15107152 CONVERGENCE OF AGGREGATION RATE WITH VALIDATED PERIPHERAL DIAGNOSTIC FOR ALZHEIMER'S DISEASE Final Rejection West Virginia University
18034645 ARTIFICIAL AXON BUNDLE Final Rejection Jiksak Bioengineering Inc.
18031736 CONTINUOUS HIGH CELL-DENSITY CULTURE WITH DUAL-VESSEL TANGENTIAL FLOW FILTRATION Non-Final OA AGC BIOLOGICS, INC.
18021650 DEVICE AND A METHOD FOR ORGAN PRESERVATION Non-Final OA A.A. Cash Technology Ltd.
17905590 MODULATORS OF ARALAR FOR TREATING NEUROLOGICAL DISORDERS Non-Final OA Universite de Lausanne
18018490 AQUEOUS SOLUTION TO PRESERVE NUCLEIC ACIDS Non-Final OA Biofarma S.r.l.

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