Prosecution Insights
Last updated: April 19, 2026

Examiner: MITCHELL, EDWIN COLEMAN

Tech Center 1600 • Art Units: 1619

This examiner grants 31% of resolved cases

Performance Statistics

31.1%
Allow Rate
-28.9% vs TC avg
157
Total Applications
+62.8%
Interview Lift
1424
Avg Prosecution Days
Based on 90 resolved cases, 2023–2026

Rejection Statute Breakdown

2.0%
§101 Eligibility
7.0%
§102 Novelty
46.1%
§103 Obviousness
28.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18072449 ANTIGEN-PRESENTING CELL-MIMETIC SCAFFOLDS AND METHODS FOR MAKING AND USING THE SAME Non-Final OA President and Fellows of Harvard College
18199625 OZONE-BASED LOW TEMPERATURE SILICON OXIDE COATING FOR PHARMACEUTICAL APPLICATIONS Final Rejection Applied Materials, Inc.
16935963 IN VIVO CROSSLINKING OF EMBOLIC HYDROGELS USING BIOORTHOGONAL CLICK CHEMISTRY Non-Final OA Boston Scientific Scimed, Inc.
18391998 POLYMERIC IMPLANTS WITH HIGH DRUG LOADING AND LONG-ACTING DRUG RELEASE AND METHODS OF MAKING THE SAME Non-Final OA The University of North Carolina at Chapel Hill
18576185 PASTE-LIKE SILICONE COMPOSITION, METHOD FOR PRODUCING THE SAME, AND COSMETICS Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
17421618 Titanium Dioxide Coatings for Medical Devices Made by Atomic Layer Deposition Non-Final OA Northeastern University
18585517 Dry Shampoo Spray Foam Technology Non-Final OA Henkel AG & Co. KGaA
18450086 TRIPLE STABILIZER SYSTEM Non-Final OA Bayer Aktiengesellschaft
17765625 LIPOSOMAL CANNABINOIDS AND USES THEREOF Final Rejection YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD
17973481 SYSTEM AND METHOD OF ISOLATION, SELECTION, AND USE OF INDIGENOUS MICROBES FOR CARBON CAPTURE AND INCREASING THE WATER HOLDING CAPACITY IN AGRICULTURAL SOILS Final Rejection MYLAND COMPANY, INC.
18269119 HAIR CARE COMPOSITION Final Rejection Conopco, Inc., d/b/a UNILEVER
18036268 WASH COMPOSITION Non-Final OA Conopco, Inc., d/b/a UNILEVER
17430837 Extracellular Vesicle Functionalization Using Oligonucleotide Tethers Final Rejection Carnegie Mellon University
18585269 METHOD AND SYSTEM FOR ASSOCIATING SECONDARY MATERIALS WITH A TISSUE GRAFT AND MODIFIED TISSUE GRAFTS Non-Final OA CellTherX Corp
17760390 COMPOSITIONS AND APPLICATIONS THEREOF Non-Final OA Kenvue Brands LLC
18250570 CRYSTAL-FREE HIGH-CONCENTRATION TESTOSTERONE CYPIONATE FORMULATIONS Final Rejection Pfizer Inc.
18691620 COSMETIC COMPOSITION Non-Final OA SHISEIDO COMPANY, LTD.
18278304 TRANSDERMAL PATCH FOR TREATING OSTEOARTHRITIS Non-Final OA HISAMITSU PHARMACEUTICAL CO., INC.
18293863 PLANT PROTEIN-BASED MICROCAPSULES Non-Final OA Firmenich SA
17761863 NOVEL HEADGROUP LIPID COMPOUNDS AND COMPOSITIONS FOR INTRACELLULAR DELIVERY OF THERAPEUTIC AGENTS Final Rejection ModernaTX, Inc.
17534956 Stable Liquid Lipid Nanoparticle Formulations Final Rejection Translate Bio, Inc.
17611020 IMPROVED PROCESS OF PREPARING MRNA-LOADED LIPID NANOPARTICLES Non-Final OA Translate Bio, Inc.
18293058 COMPOSITIONS AND METHODS Non-Final OA Glasport Bio Limited
17925957 HYDROGEL PRODUCING DEVICE FOR SAMPLING OF THE INTESTINAL LUMEN Final Rejection Danmarks Tekniske Universitet
18543539 ORAL FELINE FEED AND METHODS FOR CONTROLLING FLEA INFESTATIONS IN A FELINE Non-Final OA In the Bowl Animal Health, Inc.
18544271 SPRAYABLE COMPOSITIONS CONTAINING OIL-IN-WATER DISPERSIONS OF HYDROPHOBIC AGENTS AND POLYMER OR COPOLYMER FRAGMENTS, OR COMBINATIONS THEREOF, AND METHODS OF USE THEREOF Non-Final OA Leading Edge Innovations, LLC
18526027 Method and Product for the Identification of Diseased Animals Non-Final OA Sideris Pet Pharmaceuticals, LP
18563311 APPLICATION OF PHARMACEUTICAL COMPOSITION HAVING SPECIFIC DRUG-TO-LIPID RATIO IN ANTITUMOR Non-Final OA Highfield Biopharmaceuticals Corporation
17970503 PHYSIOLOGICAL SALINE SOLUTION AND METHODS FOR MAKING AND USING SAME Final Rejection THE CHILDREN'S HOSPITAL OF PHILADELPHIA
17916998 DECELLULARIZED MENISCAL CARTILAGE AND USES THEROF Final Rejection The Children's Hospital of Philadelphia

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