Prosecution Insights
Last updated: August 18, 2026

Examiner: HUANG, RYAN

Tech Center 3700 • Art Units: 1777 3754

This examiner grants 52% of resolved cases

Performance Statistics

52.4%
Allow Rate
-17.6% vs TC avg
612
Total Applications
+31.5%
Interview Lift
1212
Avg Prosecution Days
Based on 557 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
14.4%
§102 Novelty
50.6%
§103 Obviousness
25.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18026661 LAMINATE Non-Final OA DAIKIN INDUSTRIES, LTD.
18296830 CERAMIC FILTRATION ELEMENT Final Rejection MANN+HUMMEL LIFE SCIENCES & ENVIRONMENT HOLDING SINGAPORE PTE. LTD.
18192110 POLYSULFONE-BASED MEMBRANE FOR FRACTIONATION OF ERICHROME BLACK T (EBT)/DIVALENT SALTS, AND A METHOD OF MAKING THE SAME Final Rejection KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
18319884 ENHANCING WATER CHEMISTRY FOR IMPROVED WELL PERFORMANCE Final Rejection Chevron U.S.A. Inc.
17995999 FLOW-THROUGH PROCESSES AND DEVICES FOR PURIFYING A TARGET MOLECULE Non-Final OA Solventum Intellectual Properties Company
18673492 SYSTEMS AND METHODS FOR FAILURE MODE DETECTION IN PROCESS CHROMATOGRAPHY Non-Final OA Regeneron Pharmaceuticals, Inc.
16474455 Bioprocess Purification System and Method Final Rejection Cytiva Sweden AB
16474412 Monitoring Performance in Continuous Chromatography Final Rejection CYTIVA SWEDEN AB
17136377 BLOOD FILTERING OF INFLAMMATORY BIOMARKERS TO TREAT POST-RESUSCITATION SYNDROME Non-Final OA ZOLL Medical Corporation
18606845 METHODS AND SYSTEMS INCLUDING FLOW AND MAGNETIC MODULES Non-Final OA 10x Genomics, Inc.
18018987 COATED ULTRAFILTRATION DEVICES Final Rejection CORNING INCORPORATED
17795262 AN OUTLET COVER FOR A RECESSED PLATE-TYPE FILTER, A FILTER PLATE, A FILTER PLATE ASSEMBLY AND A RECESSED PLATE-TYPE FILTER Final Rejection Metso Finland Oy
16767809 METHODS OF MAKING POROUS MEMBRANES Non-Final OA King Abdullah University of Science and Technology
18168913 WATER FILTRATION ASSEMBLY WITH ENHANCED CONTAMINANT REDUCTION PERFORMANCE Final Rejection Haier US Appliance Solutions, Inc.
17789357 HIGHLY SELECTIVE ULTRATHIN POLYMER NANOFILM COMPOSITE MEMBRANE AND PROCESS FOR PREPARATION THEREOF Final Rejection COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
18024844 WATER TREATMENT SYSTEM, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM Non-Final OA ORGANO CORPORATION
18007489 NANO MEMBRANE, NANO MEMBRANE ASSEMBLY, AND METHOD FOR MANUFACTURING NANO MEMBRANE Non-Final OA KOLON INDUSTRIES, INC.
18345284 SUPER-HIGH-PERMEANCE THIN-FILM COMPOSITE NANOFILTRATION MEMBRANE INCORPORATING SILK NANOFIBER INTERLAYER Non-Final OA The University of Hong Kong
18001980 A METHOD OF PROVIDING A HOMOGENEOUS FEED STREAM WITHIN A PLUG FLOW REACTOR Final Rejection Boehringer Ingelheim International GmbH
18035142 POROUS HOLLOW-FIBER MEMBRANE AND METHOD FOR TESTING INTEGRITY Final Rejection ASAHI KASEI LIFE SCIENCE CORPORATION

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