Prosecution Insights
Last updated: April 19, 2026

Examiner: MILLER-CRUZ, EKANDRA S.

Tech Center 1700 • Art Units: 1773 1778

This examiner grants 66% of resolved cases

Performance Statistics

65.6%
Allow Rate
+0.6% vs TC avg
363
Total Applications
+52.4%
Interview Lift
959
Avg Prosecution Days
Based on 331 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
16.5%
§102 Novelty
44.8%
§103 Obviousness
26.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18567150 Forward Osmosis Membrane and Forward Osmosis Membrane Module Including Same Non-Final OA Asahi Kasei Kabushiki Kaisha
18563151 Filter Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18564694 FILTER DEVICE AND FUEL CELL SYSTEM HAVING A FILTER DEVICE Non-Final OA Robert Bosch GmbH
18287290 Apparatus for Treating Water using a Plasma Source that is Protected from Water Non-Final OA The Board of Trustees of the Leland Stanford Junior University
18126291 DEVICES FOR PURIFYING A LIQUID, AND RELATED SYSTEMS AND METHODS Non-Final OA ENTEGRIS, INC.
18286590 CHROMATOGRAPH Non-Final OA HITACHI HIGH-TECH CORPORATION
18288249 HOLLOW FIBER MEMBRANE AND MANUFACTURING METHOD THEREFOR Non-Final OA Toray Industries, Inc.
18562135 ISOLATION AND PURIFICATION METHOD OF EXTRACELLULAR VESICLES Non-Final OA Daicel Corporation
17941018 APPARATUS AND METHOD FOR PROCESSING SUBSTRATE Final Rejection SEMES CO., LTD.
18503428 CENTRIFUGAL SEPARATOR Non-Final OA Syntegon Technology GmbH
18555307 AGRICULTURAL SAMPLING SYSTEM AND RELATED METHODS Non-Final OA Precision Planting LLC
17783716 HYBRID THERMAL - CHROMATOGRAPHIC SYSTEM FOR SIMULTANEOUS MINERAL PURIFICATION AND DESALINATION OF SALINE WATERS Final Rejection Alliance for Sustainable Energy, LLC
18495373 PROCESS FOR MANAGING WORMS IN MEMBRANE AERATED BIOFILM Final Rejection BL TECHNOLOGIES, INC.
18556048 AIR CLEANER ARRANGEMENT AND ASSOCIATED FILTER ELEMENTS Non-Final OA Donaldson Company, Inc.
18405391 WATER TREATMENT UNIT Non-Final OA International Water Treatment Maritime AS
18229922 LIQUID-COLLECTING MECHANISM WITH ARRAYED MESH COLLECTION AREA AND SMART TOILET CONTAINING SAME Final Rejection Shanghai Kohler Electronics, Ltd.
18559374 ELECTROCHEMICAL DEVICE FOR TREATING WATER Non-Final OA Alchim di Masante & C. S.a.s.
18552000 Water tank having a filter cartridge Non-Final OA ACLARIS WATER INNOVATIONS GMBH , LINDAU , ZWEIGNIEDERLASSUNG
18234715 ENERGY INTEGRATED WATER PURIFICATION AND RECOVERY SYSTEM AND METHOD FOR USING SAME Non-Final OA AIZACO LIMITED COMPANY
18199548 INTEGRATED THERMAL HYDROLYSIS AND VACUUM DIGESTION FOR TREATING FLUID USING A BIOCHEMICAL PROCESS Non-Final OA U.S. PEROXIDE, LLC
18196753 NON-CONTACT SENSOR FOR DETERMINING A F.O.G. LEVEL IN A SEPARATOR USING ROTOMOLDED PARTS Final Rejection Thermaco Incorporated
18035010 Filter Containing Flow Disrupter Non-Final OA Fernox Limited
18030708 MODULAR FRAME FOR HEAT OR MASS-EXCHANGE MODULE Non-Final OA ROCHEM SEPARATION SYSTEM INDIA (P) LTD.
18007634 COMPRESSED AIR JETTING MECHANISM, AND CONDUIT AND SEDIMENTATION BASIN USING THE SAME Non-Final OA UTSUNOMIYA KOGYO CO., LTD.

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