Prosecution Insights
Last updated: April 19, 2026

Examiner: MENON, KRISHNAN S

Tech Center 1700 • Art Units: 1619 1772 1777 1797

This examiner grants 60% of resolved cases

Performance Statistics

59.6%
Allow Rate
-5.4% vs TC avg
1547
Total Applications
+11.7%
Interview Lift
1155
Avg Prosecution Days
Based on 1475 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
29.4%
§102 Novelty
31.5%
§103 Obviousness
26.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18460101 PENTA-AMINE-IMPREGNATED ULTRAFILTRATION SUPPORT MATRIX FOR RAPID FABRICATION OF A HYPER-CROSS-LINKED POLYAMIDE MEMBRANE Non-Final OA KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
18364639 POLYIMIDE-BASED MEMBRANES FOR DESALINATION Non-Final OA KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
18266516 PREVENTION OF MINERAL SCALE ON ELECTRICALLY CONDUCTING MEMBRANES Non-Final OA The Regents of the University of California
18110292 METHOD FOR PREPARING ACTIVATED CARBON Final Rejection The Regents of the University of California
18375985 AUTODIVERSION SAND SYSTEMS AND SYSTEMS AND METHODS TO PERFORM AUTODIVERSION OF A SAND SYSTEM Non-Final OA Halliburton Energy Services, Inc.
18378679 Systems And Methods For Collecting A Platelet Product Having A Target Concentration Non-Final OA Fenwal Inc.
18284147 Gas Separation Membranes Non-Final OA Fujifilm Corporation
18224806 Feedstock Solution Flow Concentration System Non-Final OA Asahi Kasei Kabushiki Kaisha
17893215 Method for fabricating oleophilic-hydrophobic nanofiber membrane and separation of water-in-oil emulsion using same method and waste heat Final Rejection POSTECH Research and Business Development Foundation
18456090 SIMULTANEOUS QUANTIFICATION OF ANIONS USING ION CHROMATOGRAPHY AND SUPPRESSED ION CONDUCTIVITY DETECTION Non-Final OA Arizona Board of Regents on Behalf of Arizona State University
18526487 METHODS OF TREATING COMPOUNDS USING VISIBLE LIGHT-ENABLED ACTIVATION OF PEROXYDISULFATE Non-Final OA THE TEXAS A&M UNIVERSITY SYSTEM
17980985 MEMBRANE FOR REMOVING ANIONIC MATERIALS Non-Final OA ENTEGRIS, INC.
18408144 WASTE MANAGEMENT SYSTEM WITH BUILT-IN PIEZOELECTRIC BASED INTERFACES FOR WATER RECOVERY AND STERILIZATION VIBRATION Non-Final OA Hamilton Sundstrand Corporation
17980979 COMPOSITE SEMIPERMEABLE MEMBRANE, SPIRAL MEMBRANE ELEMENT, WATER TREATMENT SYSTEM, AND WATER TREATMENT METHOD Non-Final OA NITTO DENKO CORPORATION
17974875 COMPOSITE REVERSE OSMOSIS MEMBRANE AND PRODUCTION METHOD THEREOF Final Rejection NITTO DENKO CORPORATION
18280146 FILTRATION MEMBRANE FROM A BLEND COMPRISING POLYSULFONE AND POLYOXAZOLINE AND METHOD MAKING THEREOF Non-Final OA Solventum Intellectual Properties Company
18259689 REVERSE OSMOSIS FILTRATION SYSTEM Final Rejection Solventum Intellectual Properties Company
18266484 Polymeric Membrane Non-Final OA Solventum Intellectual Properties Company
18330401 SYSTEM FOR REVERSE OSMOSIS AND FOR PRESSURE RETARDED OSMOSIS Final Rejection Danfoss A/S
18281095 PACKING MATERIAL AND METHOD FOR PRODUCING THE SAME, AND COLUMN FOR SIZE EXCLUSION CHROMATOGRAPHY Non-Final OA Resonac Corporation
17631819 METHOD FOR CONTROLLING THE AMOUNT OF ANTICOAGULANT PRESENT IN COLLECTED PLASMA AFTER APHERESIS Final Rejection GRIFOLS WORLDWIDE OPERATIONS LIMITED
18542624 ULTRASONIC EXTRACTION DEVICE FOR PLANT POLYPHENOLS Non-Final OA Zhejiang University
17768516 DETERMINING INTERNAL FILTRATION RATE WITHIN A CAPILLARY HEMODIALYZER Final Rejection GAMBRO LUNDIA AB
18574522 AEROBIC GRANULE FORMING METHOD AND AEROBIC GRANULE FORMING DEVICE Non-Final OA ORGANO CORPORATION
18268249 METHOD FOR CLEANING A FILTER MODULE, AND FILTER MODULE FOR CARRYING OUT SAID METHOD Non-Final OA FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
18016895 MULTI-STAGE MEMBRANE DISTILLATION DEVICE AND METHOD Non-Final OA KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
18317604 DISCRETE VAPOR COMPRESSION DISTILLATION URINE PROCESSOR ASSEMBLY AND METHOD OF USE THEREOF Final Rejection Hamilton Sundstrand Space Systems International, Inc.
18547660 BYPASS CONTROL SLEEVE FOR SANITARY SPIRAL WOUND FILTER Non-Final OA BL TECHNOLOGIES, INC.
18251806 MICROPOROUS ARTICLES AND CORRESPONDING FORMATION METHODS Final Rejection SYENSQO SPECIALTY POLYMERS USA, LLC
18289491 Sealing Assembly and Method of Use Thereof Non-Final OA William N. TALLY

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