Prosecution Insights
Last updated: May 29, 2026

Examiner: PATEL, PRANAV N

Tech Center 1700 • Art Units: 1777

This examiner grants 68% of resolved cases

Performance Statistics

68.2%
Allow Rate
+3.2% vs TC avg
688
Total Applications
+22.1%
Interview Lift
1065
Avg Prosecution Days
Based on 641 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
4.6%
§102 Novelty
89.5%
§103 Obviousness
4.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18475317 REMOVING BIVALENT IONS FROM PRODUCED WATER Non-Final OA Saudi Arabian Oil Company
19309370 Cell Processing System And Method With Preliminary Process Evaluation Non-Final OA Fenwal, Inc.
18024626 AFFINITY CHROMATOGRAPHY DEVICES CONTAINING A HEAT TREATED FIBRILLATED POLYMER MEMBRANE AND MANIFOLDS CONTAINING THE SAME Non-Final OA W. L. GORE & ASSOCIATES, INC.
18284171 Gas Separation Membranes Non-Final OA Fujifilm Corporation
18313523 METHODS FOR REMOVING DEICING SALT IONS FROM WATER RUNOFF Final Rejection VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
17943514 CHROMATOGRAPHY SYSTEM Non-Final OA Sanofi
17424396 METHODS AND APPARATUS TO SELECTIVELY EXTRACT CONSTITUENTS FROM BIOLOGICAL SAMPLES Final Rejection BECTON DICKINSON AND COMPANY
18295481 CLEAN-IN-PLACE METHODS FOR FERMENTATION OPERATIONS Final Rejection ECOLAB USA INC.
17684989 AUTOMATED MODULATION OF ANTIMICROBIAL CHEMISTRY APPLICATION IN WATER SYSTEMS Non-Final OA ECOLAB USA INC.
18105977 APPARATUS AND METHOD FOR TESTING INTEGRITY OF AN ULTRAFILTER MEMBRANE Non-Final OA GAMBRO LUNDIA AB
18071899 VESSEL, SYSTEM, AND ASSOCIATED METHOD FOR PRODUCT CONCENTRATION Final Rejection Repligen Corporation
18563071 REVERSE OSMOSIS COMPOSITE MEMBRANE Non-Final OA NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
17878412 IN-LINE SENSORS FOR DIALYSIS APPLICATIONS Non-Final OA Baxter Healthcare SA
18249411 Methods for purifying bacterial polysaccharides Non-Final OA Pfizer Inc.
17970874 METHODS FOR ANION-EXCHANGE ANALYSIS OF NUCLEIC ACIDS Final Rejection Waters Technologies Corporation
18012935 SELECTIVE REMOVAL OF MICRO-CONTAMINANTS FROM SLUDGE Non-Final OA SUEZ INTERNATIONAL
18546574 SYSTEMS AND METHODS PROVIDING FOR REDUCING ENERGY AND EQUIPMENT REQUIRED IN PROGRESSIVE NANOFILTRATION CONCENTRATION Non-Final OA Fluid Technology Solutions (FTS), Inc.
18233185 COATED CROSSFLOW FILTER MEMBRANES AND FILTRATION SYSTEMS FOR FRACTIONAL SEPARATION OF BIOLOGICAL MATERIAL Non-Final OA SHENZEN XBIOME BIOTECH CO. LTD.
18262006 Filtration Device Non-Final OA Sani Membranes ApS
18028329 DEVICE FOR SUBSTANCE EXCHANGE AND METHOD FOR THE PRODUCTION THEREOF Final Rejection enmodes GmbH
18041935 Monolithic Membrane Filters Final Rejection InnoSpire Technologies GmbH
18160452 NOVEL SLOW DISSOLVE WATER TREATMENT COMPOSITIONS Final Rejection INNOVATIVE WATER CARE, LLC
18093116 WATER PURIFIER FILTER CARTRIDGE OF SIMPLE STRUCTURE Final Rejection Bluevua Inc.
18010563 PROCESS FOR PURIFYING A PHOSPHATE CONTAINING ACIDIC SOLUTION COMPRISING IMPURITIES AND APPARATUS FOR APPLYING SAME Non-Final OA Prayon
18078094 DEVICE AND METHOD FOR EXTRACTING BIOMOLECULES Non-Final OA LABTURBO BIOTECH CORPORATION
18056607 POROUS MATERIAL WITH SURFACE-MODIFIED NANOARRAYS AND APPLICATION THEREOF Final Rejection Tsinghua Shenzhen International Graduate School
17665459 Wind-Powered Direct Air Carbon Dioxide Capture Device for Ocean Sequestration Final Rejection Dehlsen Associates of the Pacific Limited
17616542 FORMING OF DISINFECTANT SOLUTIONS Non-Final OA Control Chemicals (Pty) Ltd
17595155 SYSTEMS AND METHODS FOR SENSORLESS ESTIMATION OF WATER SOFTENER SALT LEVEL AND REGENERATION CYCLING Non-Final OA Pentair Residential Filtration, LLC

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