Prosecution Insights
Last updated: May 29, 2026

Examiner: GURTOWSKI, RICHARD C

Tech Center 1700 • Art Units: 1657 1772 1773 1778

This examiner grants 72% of resolved cases

Performance Statistics

71.9%
Allow Rate
+6.9% vs TC avg
795
Total Applications
+38.9%
Interview Lift
1003
Avg Prosecution Days
Based on 761 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
5.2%
§102 Novelty
76.7%
§103 Obviousness
10.4%
§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.
18364769 FLUID FILTRATION SYSTEM AND METHOD Non-Final OA ZF Friedrichshafen AG
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
18284658 BOWL FILTER CARTRIDGE ARRANGEMENT HAVING TRAP AND METHODS Final Rejection Donaldson Company, Inc.
18578262 VOLUME REDUCTION SOLIDS TREATMENT SYSTEM Non-Final OA Duke University
18131839 Production Efficiency Optimization For Bipolar Electrodialysis Device Non-Final OA Ebb Carbon, Inc.
18498844 DETECTING AND MONITORING OXYGEN-RELATED EVENTS IN HEMODIALYSIS PATIENTS Non-Final OA Fresenius Medical Care Holdings, Inc.
18561054 AQUEOUS BIOLOGICAL SYSTEMS WITH REDUCED PHOSPHATE LEVELS AND METHODS OF REDUCING PHOSPHATE LEVELS Non-Final OA CORN PRODUCTS DEVELOPMENT, 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
18544141 POOL CHEMICAL DISPENSING SYSTEM Non-Final OA Pentair Water Pool and Spa, Inc.
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
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
18288272 INSTALLATION FOR TREATING WASTEWATER FROM A TOILET AND SANITARY UNIT COMPRISING SUCH AN INSTALLATION Non-Final OA MIZUFALLS SA
18452051 Reinforced Gas Permeable Blood Storage Bags, and Methods of Preparation Thereof Non-Final OA Hemanext Inc.
18213240 SYSTEM FOR CONDITIONING WATER QUALITY Non-Final OA Caron Products and Services, Inc.
18300003 Fluid Modifying and Dispensing System Final Rejection Struktur 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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