Prosecution Insights
Last updated: April 19, 2026

Examiner: GURTOWSKI, RICHARD C

Tech Center 1700 • Art Units: 1772 1773 1778

This examiner grants 72% of resolved cases

Performance Statistics

71.7%
Allow Rate
+6.7% vs TC avg
790
Total Applications
+39.2%
Interview Lift
1042
Avg Prosecution Days
Based on 755 resolved cases, 2023–2026

Rejection Statute Breakdown

2.4%
§101 Eligibility
19.8%
§102 Novelty
43.7%
§103 Obviousness
29.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17973638 SYSTEMS AND METHODS FOR GENERATING LABORATORY WATER AND DISTRIBUTING LABORATORY WATER AT DIFFERENT TEMPERATURES Final Rejection Regeneron Pharmaceuticals, Inc.
18352387 SEPARATING IONS IN WATER USING PLASTIC ICE VII Non-Final OA International Business Machines Corporation
18404913 WATER TREATMENT SYSTEM Final Rejection WOTA CORP.
18264088 METHOD FOR PURIFYING BRINE GENERATED IN AROMATIC COMPOUND PRODUCING PROCESS Non-Final OA HANWHA SOLUTIONS CORPORATION
18284356 METHOD AND APPARATUS FOR PURIFYING NON-AQUEOUS LIQUID, AND ION EXCHANGE RESIN PRODUCTION METHOD AND PRETREATMENT APPARATUS Non-Final OA ORGANO CORPORATION
18026600 WAFER CLEANING WATER SUPPLY SYSTEM AND WAFER CLEANING WATER SUPPLY METHOD Final Rejection KURITA WATER INDUSTRIES LTD.
18355919 INTERNAL PERFORMANCE MONITORING FOR WATER FILTER Final Rejection Haier US Appliance Solutions, Inc.
18661582 Intelligent Adjustment of Computing Device Operations Non-Final OA KATA Gardner Technologies
18416999 BIAS ENHANCED ELECTROLYTIC PHOTOCATALYSIS (BEEP) CLEANING SYSTEM Final Rejection Waterdrape, LLC
18342675 CHEMICAL CONTROLLER SYSTEM AND METHOD Non-Final OA PENTAIR WATER POOL AND SPA, INC.
18571848 A WATER PURIFICATION SYSTEM AND USES THEREOF Non-Final OA TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LIMITED
18572023 METHOD FOR THE TREATMENT OF BLACK WATER Non-Final OA NOAH WATER SOLUTIONS BV
18571278 WATER TREATMENT DEVICE BASED ON MAGNETIC FIELDS APPLICATION Non-Final OA TAVALAEI, NAHID
18540048 BUFFERING DEVICE FOR FILTER BOTTLE Non-Final OA Ching-Hsiung LIN
18530743 FILTER ASSEMBLY FOR EARTH RETAINING STRUCTURES Non-Final OA Jet Filter Systems, LLC
18566426 PLANT-DERIVED VESICLES INCORPORATING TRANS-MEMBRANE PROTEINS Non-Final OA AQUAPORIN A/S
18387850 DEVICES, SYSTEMS, AND METHODS TO FACILITATE CRITICAL METAL EXTRACTION FROM WATER Non-Final OA Katz Water Tech, LLC
18498795 WATER FILTRATION APPARATUS Non-Final OA Oyster Products LLC
18497523 OSCILLATING BUBBLE REACTOR Non-Final OA University of Utal Research Foundation
18288272 INSTALLATION FOR TREATING WASTEWATER FROM A TOILET AND SANITARY UNIT COMPRISING SUCH AN INSTALLATION Non-Final OA MIZUFALLS SA
18382983 FLOW CONTROL DEVICE FOR FLUID FILTERING ASSEMBLY Non-Final OA GRAYL Inc.
18552057 METHOD AND SYSTEM FOR TREATING INDUSTRIAL PROCESS FLUIDS Non-Final OA Wallenius Water Innovation AB
18368115 ROTATING IRRIGATION SCREEN APPARATUS Non-Final OA BLUE ARC IRON WORKS, LLC
18452051 Reinforced Gas Permeable Blood Storage Bags, and Methods of Preparation Thereof Non-Final OA Hemanext Inc.
18276250 FILTERING DEVICE Non-Final OA YIMAO ENVIRONMENTAL TECHNOLOGY CO., LTD.
18213240 SYSTEM FOR CONDITIONING WATER QUALITY Non-Final OA Caron Products and Services, Inc.
18300003 Fluid Modifying and Dispensing System Final Rejection Struktur Inc.
18131839 Production Efficiency Optimization For Bipolar Electrodialysis Device Non-Final OA Ebb Carbon, Inc.
17527729 System and Method for Monitoring and Adding Disinfectant in Animal Drinking Water Using Oxidation-Reducing Potential Final Rejection NCH Corporation

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