Prosecution Insights
Last updated: April 19, 2026

Examiner: KURTZ, BENJAMIN M

Tech Center 1700 • Art Units: 1772 1778 1779 1797

This examiner grants 57% of resolved cases

Performance Statistics

56.8%
Allow Rate
-8.2% vs TC avg
1154
Total Applications
+17.4%
Interview Lift
1146
Avg Prosecution Days
Based on 1104 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
23.9%
§102 Novelty
43.0%
§103 Obviousness
25.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18219823 FILTER DEVICE Final Rejection ENGEL AUSTRIA GmbH
19194427 FILTER SYSTEM FOR HANDHELD CONTAINERS OF CONSUMABLE LIQUIDS Non-Final OA CAP ZERO, LLC
18281875 FILTER CARTRIDGE FOR INSERTION IN A FILTER HOUSING OF A FLUID FILTER Non-Final OA HENGST SE
17053848 Membrane for Capillary Microfiltration Final Rejection Solventum Intellectual Properties Company
19066133 Isolation of Ammonia from Wastewater with Struvite Non-Final OA Perseverance Water Guardian LLC
19015910 METHOD OF OPERATING A RAKE SYSTEM Non-Final OA Duperon Innovation LLC
18242331 In-mold piping filter Final Rejection JUN HE TECHNOLOGY CO., LTD.
16065983 FILTER ELEMENT AND A METHOD OF MANUFACTURING THEREOF Final Rejection BL Technologies, Inc.
18583824 FILTER ASSEMBLY WITH FILTER ELEMENT ENDCAP HAVING INTEGRAL EXTERNAL ROUNDED POLYGON SHAPED SEALING SURFACE Final Rejection Schroeder Industries, LLC
18289089 COMPOSITE METAL OXIDE Non-Final OA SETOLAS Holdings, Inc.
18448694 SELF-LOCKING FILTER CARTRIDGE AND ASSEMBLY Final Rejection Qingdao Ecopure Filter Co., Ltd.
18493201 OIL FILTER BASE ASSEMBLY Non-Final OA WENZHOU BONAI AUTO RADIATOR CO.,LTD
18383131 Filter and Frame Apparatus and Method of Use Non-Final OA Delcath Systems, Inc.
17769066 Filter Element With Gasket Surrounding Filter Head Non-Final OA Herding GmbH Filtertechnik
18460704 AUTOMATIC WATER FILTERING PURIFYING BOTTLE Non-Final OA GUANGZHOU LANQUAN HOUSEHOLD ELECTRICAL APPLIANCE CO., LTD
17887625 FILTER DEVICE AND FILTER ELEMENT Non-Final OA Hydac Filtertechnik GmbH
18237676 SYSTEMS AND METHODS FOR SEPARATION OF A FEED MATERIAL USING HYDROPHOBIC AND HYDROPHILIC MATERIALS Non-Final OA CarbonBridge Inc.
18274602 Installation Assistance Features and Methods for Installation of a Water Filter Non-Final OA Think Tank Investments, LLC
18355701 MODULAR FLUID PROCESSING APPARATUSES, MODULAR COMPONENTS AND RELATED METHODS Final Rejection PSI-Polymer Systems, Inc.
18223762 Filter Cartridge and Mounting Mechanism Non-Final OA Avidity Science, LLC
18271295 FILTER ASSEMBLIES WITH COMBINED AXIAL AND RADIAL SEALING Final Rejection CUMMINS FILTRATION INC.
18216791 FILTER SYSTEM WITH FLANGED FILTER CARTRIDGE Final Rejection Cummins Filtration Inc.
18269419 DEVICE FOR REMOVING FOREIGN MATTER FROM A LIQUID Final Rejection VITO AG
18196314 Packing material-containing microcolumn Non-Final OA ACE BioAnalysis, Inc.
18305234 PORTABLE ATMOSPHERIC WATER GENERATOR Non-Final OA Spout Ventures Inc.
18137193 WATER FILTER/SCREEN Final Rejection Dama Manufacturing Limited
18043849 FILTER CARTRIDGE Final Rejection ACLARIS WATER INNOVATIONS GMBH, LINDAU, ZWEIGNIEDERLASSUNG REBSTEIN
18059850 MONITORING SCHEME AND METHOD OF CORROSION AND FOULING REDUCTION FOR SCWO SYSTEM Non-Final OA 374Water Inc.
17962394 SUPPORT GRID ASSEMBLY FOR PRESSURE VESSEL Final Rejection Aqseptence Group, Inc.
17598082 BLOOD PURIFIER AND METHOD FOR MANUFACTURING SAME Non-Final OA ASAHI KASEI MEDICAL CO., LTD.

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