Prosecution Insights
Last updated: April 19, 2026

Examiner: PEO, JONATHAN M

Tech Center 1700 • Art Units: 1779

This examiner grants 48% of resolved cases

Performance Statistics

48.5%
Allow Rate
-16.5% vs TC avg
487
Total Applications
+48.1%
Interview Lift
1528
Avg Prosecution Days
Based on 433 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
13.2%
§102 Novelty
48.6%
§103 Obviousness
35.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17768734 MICROFLUIDIC SYSTEMS FOR PULSED ELECTRIC FIELD STERILIZATION Non-Final OA President and Fellows of Harvard College
17802602 METHOD AND APPARATUS FOR PRODUCING EMULSION Non-Final OA NITTO DENKO CORPORATION
18555612 VIRAL FILTRATION MEDIA, ARTICLES, AND METHODS Non-Final OA Solventum Intellectual Properties Company
18102626 POLYMERIC FOAM COMPOSITES FOR WASTEWATER TREATMENT AT ROOM TEMPERATURE Final Rejection QATAR UNIVERSITY
15723550 PERITONEAL DIALYSATE TEMPERATURE REGULATION SYSTEM Non-Final OA Medtronic, Inc.
17978613 SINGLE USE DISPOSABLE TIME INDICATION DEVICES Final Rejection CareFusion 303, Inc.
18022866 AUTOMATIC REINFUSION OF BLOOD FOLLOWING A BLOOD TREATMENT THERAPY Final Rejection B. Braun Avitum AG
18562529 LIQUID STORAGE RESERVOIR Non-Final OA NIPRO CORPORATION
17770494 A WATER PURIFICATION APPARATUS, AND A METHOD FOR COOLING A RO-MEMBRANE IN A WATER PURIFICATION APPARATUS Final Rejection BAXTER HEALTHCARE SA
17642968 SELECTIVE REMOVAL OF CHARGED SPECIES Non-Final OA Oxford University Innovation Limited
18289374 HOLLOW-FIBRE MEMBRANE FILTER HAVING IMPROVED SEPARATION PROPERTIES Non-Final OA FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
17798567 FLUID FLOW CONTROL OF A BLOOD TREATMENT DEVICE Non-Final OA FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
18055799 FLUID SENSOR SYSTEM Final Rejection Analog Devices International Unlimited Company
18602164 Dialysis Devices And Sensor Caps And Systems And Methods Incorporating The Same Non-Final OA Life Technologies Corporation
18447780 Pressure Output Device for Extracorporeal Hemodialysis Machine Non-Final OA Fresenius Medical Care Holdings, Inc.
18067711 METHOD FOR THE SEPARATION OF ANIONIC, CATIONIC, NEUTRAL AND ZWITTERIONIC ARSENIC SPECIES Final Rejection DIONEX CORPORATION
18500482 Process and Device for Removing Contaminants from a Fluid Stream Non-Final OA Celanese International Corporation
18651365 FLUID CIRCULATION CHAMBER MEMBRANE, A CHAMBER AND PUMP FOR ARTIFICIAL CIRCULATORY ASSISTANCE AND A PUMPING SYSTEM Non-Final OA ZAMMI INSTRUMENTAL LTDA
18483253 VACUUM DRIVEN GEL FILTRATION METHOD Non-Final OA Waters Technologies Corporation
18231263 DEVICE AND PROCESS FOR ELECTROCHEMICAL TREATMENT OF WASTEWATER WITH SCREENING CURRENT COLLECTOR-BASED FLOW ANODE Non-Final OA Guangdong University of Technology
18574595 Membranes with Controlled Porosity for Serial Filtration Non-Final OA Gradiant Corporation
18033825 BLOOD PURIFICATION APPARATUS Non-Final OA Nikkiso Co., Ltd.
17800529 DIALYSIS MACHINE AND METHOD FOR RINSING SAME Non-Final OA PHYSIDIA
18494037 HOLDING MECHANISM Non-Final OA DIONEX SOFTRON
18310484 DIALYSIS BIOMARKER MONITORING Final Rejection ROCKLEY PHOTONICS LIMITED
18450177 METHOD FOR TRANSFERRING A RADIOISOTOPE BETWEEN TWO STATIONARY PHASES CONTAINED IN TWO CHROMATOGRAPHY COLUMNS Final Rejection ORANO MED
17293185 METHOD FOR TRANSFERRING A RADIOISOTOPE BETWEEN TWO STATIONARY PHASES CONTAINED IN TWO CHROMATOGRAPHY COLUMNS Non-Final OA ORANO MED
18366651 FILTER FOR A BASKET, BASIN, OR SINK Non-Final OA BEARD BIN, LLC
17827578 METHODS AND SYSTEMS FOR CONTROLLING DIALYSATE SALT CONCENTRATION Non-Final OA DIALITY INC.
18215425 SYSTEMS AND METHODS OF OPERATING WATER FILTRATION SYSTEMS Non-Final OA Clean H2O Technologies, LLC

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