Prosecution Insights
Last updated: April 19, 2026

Examiner: NORRIS, CLAIRE A

Tech Center 1700 • Art Units: 1778 1779

This examiner grants 65% of resolved cases

Performance Statistics

65.3%
Allow Rate
At TC average
875
Total Applications
+28.2%
Interview Lift
1060
Avg Prosecution Days
Based on 827 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
15.9%
§102 Novelty
42.6%
§103 Obviousness
31.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18556671 FILTRATION DEVICE FOR A DOWN-FLOW HYDROPROCESSING REACTOR Non-Final OA CHEVRON U.S.A INC.
18465692 WATER OIL SEPARATOR VESSEL WITH HYDROPHOBIC MESH TUBES Non-Final OA Saudi Arabian Oil Company
18972007 PROCESS OF AFFINITY CHROMATOGRAPHY Non-Final OA Kashiv BioSciences, LLC
18501778 DEVICES AND METHODS UTILIZING CARBON NANOTUBE MEMBRANE FILTRATION Non-Final OA Kohler Co.
18556986 OXIDATION OF SULPHUR SPECIES Non-Final OA METSO FINLAND OY
18012687 WASTE TREATMENT SYSTEM AND WASTE TREATMENT METHOD Non-Final OA MITSUBISHI HEAVY INDUSTRIES, LTD.
18309365 NANOCOMPOSITE PREPARATION, METHOD FOR MAKING THE SAME AND USE THEREOF Non-Final OA INSTITUTE OF SOIL SCIENCE, CHINESE ACADEMY OF SCIENCES
18540481 Method for High Purity High Throughput Isolation of Extracellular Vesicles Using Size Exclusion Chromatography Non-Final OA Northeastern University
18013087 A CONTROL SYSTEM OF A WASTEWATER TREATMENT PLANT Final Rejection KEMIRA OYJ
18643059 MAGNETIC FILTER APPARATUS AND METHOD Non-Final OA MEDISIEVE LTD
18254180 DEVICE FOR FORMING TURBULENCE IN A LIQUID, ESPECIALLY FOR SOLID/LIQUID MIXTURES Final Rejection SAATI S.P.A.
18508983 WASTEWATER TREATMENT WITH PRIMARY TREATMENT AND MBR OR MABR-IFAS REACTOR Non-Final OA BL TECHNOLOGIES, INC.
17967838 Sequencing Batch Reactor Systems and Methods Final Rejection Evoqua Water Technologies LLC
18574373 COMPOSITE MATERIAL FOR MECHANICAL FILTRATION AND CHEMICAL BINDING OF SUBSTANCES, BACTERIA AND VIRUSES FROM SOLUTIONS Non-Final OA INSTRACTION GmbH
18533129 LAGOON BASED ANAEROBIC SBR/UAC REACTOR SYSTEM WITH MULTIPLE CELLS Non-Final OA SUSTAIN TECHNOLOGIES, LLC
18563081 FILTER CARTRIDGE FOR FILTRATION OF LIQUIDS Non-Final OA BRITA SE
18022334 FLUID RECYCLING UNIT FOR AIRCRAFT Non-Final OA MAG Aerospace Industries, LLC
18501426 THERMAL CONDUCTIVE AND BREATHABLE MEMBRANE Non-Final OA UC Bacon Company Limited
18288522 A FILTER UNIT FOR FILTERING MICROPARTICLES AND A FILTER CAGE FOR USE IN A FILTER UNIT Non-Final OA Xeros Limited
18552742 PROCESS FOR ISOLATION AND/OR PURIFYING OF GLYCOLIPIDS Non-Final OA BIO BASE EUROPE PILOT PLANT VZW
18143052 MANUFACTURING PROCESS FOR PRODUCING AMMONIA FROM ANAEROBIC DIGESTATE LIQUID Non-Final OA NATURAL AMMONIA PRODUCTS, LLC
18305324 Systems and Methods for Systems and Methods Using Thermophilic Microbes for the Treatment of Wastewater Final Rejection Advanced Innovators, Inc.
17877941 Systems and Methods for Reducing Pollutants, Including Carbon in Public Utilities, Agriculture and Manufacturing Non-Final OA Advanced Innovators Inc.
18247575 METHODS FOR ENHANCED BIOLOGICAL PHOSPHORUS REMOVAL Final Rejection HIAS HOW2O AS
18029631 METHOD AND INSTALLATION FOR CONTROLLED MICROBIOME SHIFT FOR BIOMASS DENSIFICATION IN A BIOLOGICAL TREATMENT OF A RAW INFLUENT Final Rejection NEWPORT GMBH
18246929 Wastewater Treatment System and Method Using Aerobic Granular Sludge With Immersed Membrane Separation Non-Final OA Carollo Engineers, Inc.
18027237 A LIQUID FILTER Non-Final OA CHARLES AUSTEN PUMPS LTD.
18041379 BIOFILM CARRIER FOR MOVING BED BIOFILM REACTORS Non-Final OA VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
18076860 CONCURRENT RAW AND AERATED WASTEWATER TREATMENT METHOD USING BIOELECTROCHEMICAL SYSTEM Non-Final OA OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
18145759 METHODS FOR INCREASING BIOSOLIDS CAKE DRYNESS THROUGH A FORCED VENTILATION AERATED STATIC PILE BIOLOGICAL DRYING PROCESS Non-Final OA JACOBS ENGINEERING GROUP, INC.

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