Prosecution Insights
Last updated: May 29, 2026

Examiner: HUANG, RYAN

Tech Center 1700 • Art Units: 1777

This examiner grants 52% of resolved cases

Performance Statistics

51.8%
Allow Rate
-13.2% vs TC avg
609
Total Applications
+32.2%
Interview Lift
1209
Avg Prosecution Days
Based on 546 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
7.0%
§102 Novelty
83.9%
§103 Obviousness
4.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18657920 PROCESS FOR PREPARATION OF STABLE PROTEIN SOLUTION Non-Final OA Kashiv BioSciences, LLC
17995999 FLOW-THROUGH PROCESSES AND DEVICES FOR PURIFYING A TARGET MOLECULE Final Rejection Solventum Intellectual Properties Company
18026661 LAMINATE Final Rejection DAIKIN INDUSTRIES, LTD.
18254301 POROUS AND MONOLITHIC CARBON MEMBRANES AND THEIR USE Non-Final OA The University of Chicago
18103337 MEMBRANES AND METHOD FOR REMOVING TRACE METALS Non-Final OA ENTEGRIS, INC.
17136377 BLOOD FILTERING OF INFLAMMATORY BIOMARKERS TO TREAT POST-RESUSCITATION SYNDROME Non-Final OA ZOLL Medical Corporation
17099269 SELF CONTAINED, AUTOMATIC WATER QUALITY MONITORING AND TREATMENT SYSTEM Non-Final OA FLUID HANDLING LLC.
18024844 WATER TREATMENT SYSTEM, INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM Final Rejection ORGANO CORPORATION
18176842 COMPOSITE SEMIPERMEABLE MEMBRANE AND SPIRAL MEMBRANE ELEMENT Final Rejection NITTO DENKO CORPORATION
18028866 POLYAMIDE POROUS MEMBRANE AND METHOD FOR PRODUCING SAME Non-Final OA NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
18168913 WATER FILTRATION ASSEMBLY WITH ENHANCED CONTAMINANT REDUCTION PERFORMANCE Non-Final OA Haier US Appliance Solutions, Inc.
18159302 METHOD AND SYSTEM FOR IMPROVING SOLID-LIQUID SEPARATION PERFORMANCE OF SLUDGE BY IN-SITU CRYSTALLIZATION OF WATER Final Rejection Tongji University
18195124 3D HIERARCHICAL NANOPOROUS GRAPHENE MEMBRANE FOR OIL/WATER SEPARATION Non-Final OA Khalifa University of Science and Technology
18023656 POLYAMIDE REVERSE OSMOSIS MEMBRANE HAVING EXCELLENT DURABILITY AND ANTIFOULING PROPERTIES, AND METHOD FOR MANUFACTURING SAME Final Rejection Toray Advanced Materials Korea Inc.
16474412 Monitoring Performance in Continuous Chromatography Non-Final OA CYTIVA SWEDEN AB
17312833 METHOD AND DEVICE FOR DETERMINING AT LEAST ONE OPERATING PARAMETER OF A FILTER OR A FILTER CARTRIDGE ARRANGED IN THE FILTER, AND FILTER CARTRIDGE Non-Final OA HENGST SE
18127011 MICROFLUDIC PURIFICATION DEVICE Non-Final OA ORIENTAL SYSTEM TECHNOLOGY INC.
17795262 AN OUTLET COVER FOR A RECESSED PLATE-TYPE FILTER, A FILTER PLATE, A FILTER PLATE ASSEMBLY AND A RECESSED PLATE-TYPE FILTER Non-Final OA Metso Outotec Finland Oy
18296830 CERAMIC FILTRATION ELEMENT Non-Final OA MANN+HUMMEL LIFE SCIENCES & ENVIRONMENT HOLDING SINGAPORE PTE. LTD.
18035142 POROUS HOLLOW-FIBER MEMBRANE AND METHOD FOR TESTING INTEGRITY Non-Final OA ASAHI KASEI LIFE SCIENCE CORPORATION
18245625 METHOD AND APPARATUS FOR PROLONGING CONTINUOUS OPERATION PERIOD OF METHANOL-TO-OLEFINS WATER WASHING PROCESS Final Rejection SINOPEC GUANGZHOU ENGINEERING CO., LTD.
17789357 HIGHLY SELECTIVE ULTRATHIN POLYMER NANOFILM COMPOSITE MEMBRANE AND PROCESS FOR PREPARATION THEREOF Non-Final OA COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
18021074 ASYMMETRIC HYDROPHOBIC POLYOLEFIN HOLLOW FIBER MEMBRANE, PREPARING METHOD, AND USE OF THE SAME Final Rejection HANGZHOU COBETTER TECHNOLOGY CO., LTD.
18018078 METHODS OF PREPARING SOLID PARTICULATE MATERIALS Non-Final OA MICROPORE TECHNOLOGIES LIMITED
17800418 OPTIMIZED METHOD FOR BEVACIZUMAB PURIFICATION Non-Final OA PRESTIGE BIOPHARMA PTE LTD.
17377844 METHODS OF PREPARING DUAL-LAYER POLYVINYLIDENE FLUORIDE HOLLOW FIBER MEMBRANES AND USES THEREOF Final Rejection New Mexico Tech University Research Park Corporation

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