Prosecution Insights
Last updated: April 19, 2026

Examiner: ROYCE, LIAM A

Tech Center 1700 • Art Units: 1777

This examiner grants 65% of resolved cases

Performance Statistics

64.9%
Allow Rate
At TC average
561
Total Applications
+21.7%
Interview Lift
1055
Avg Prosecution Days
Based on 522 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
17.8%
§102 Novelty
44.3%
§103 Obviousness
33.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18111160 ULTRAPURE WATER MANUFACTURING FACILITY Final Rejection Samsung Electronics Co., Ltd.
18750081 NATURAL MATERIAL FOR SEPARATING OIL-IN-WATER EMULSIONS Non-Final OA Saudi Arabian Oil Company
17903187 Systems And Methods For Separating Cells Incorporating A Magnetic Selector Non-Final OA Fenwal, Inc.
17632625 VOLATILE FATTY ACID CONTROL Non-Final OA ECOLAB USA INC.
18319653 CONTINUOUS AND RAPID PERPETUAL ELECTROSTATIC COALESCENCE PHASE SEPARATION AND DEMULSIFICATION OF OIL, WATER, AND SOLIDS USING PLASMA AT STANDARD CONDITIONS Final Rejection The Texas A&M University System
18541022 Water Purification System And Method Non-Final OA Merck Patent GmbH
18879511 RESIDENTIAL HYDRONIC MAGNETIC, SEDIMENT, AND AIR SEPARATION DEVICE WITH MAINTENANCE INDICATOR Final Rejection FLUID HANDLING LLC
17631653 PHYTO-MEDIATED WASTEWATER TREATMENT BIOREACTOR (PWBR) Non-Final OA ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
16972958 CORE-SHELL IRON OXIDE-POLYMER NANOFIBER COMPOSITES FOR REMOVAL OF HEAVY METALS FROM DRINKING WATER Final Rejection UNIVERSITY OF IOWA RESEARCH FOUNDATION
17842905 Fold Protection for Spiral Filtration Modules Utilizing UV Cured Polyurethane and Method of Providing Same Non-Final OA Henkel AG & Co. KGaA
18628760 SEA STRAINER Non-Final OA Miller-Leaman, Inc.
18246312 PROCESS FOR PREPARING EXTRACELLULAR VESICLES Non-Final OA LONZA SALES AG
18258352 FILTRATE VAT ASSEMBLY FOR A FILTER PRESS Non-Final OA METSO OUTOTEC FINLAND OY
17788768 HIGHLY PERMEABLE ULTRATHIN POLYMER NANOFILM COMPOSITE MEMBRANE AND A PROCESS FOR PREPARATION THEREOF Final Rejection Council of Scientific & Industrial Research
18256794 FILTER UNIT AND BASE UNIT OF AN OIL-WATER-SEPARATING DEVICE FOR REMOVING OIL-CONTAINING CONSTITUENTS FROM AN OIL-WATER MIXTURE Non-Final OA BEKO TECHNOLOGIES GMBH
18255240 COMPOSITIONS AND METHODS FOR RAPID DEGRADATION AND AMELIORATION OF MARINE OIL SPILLS Non-Final OA 683107 Alberta Ltd.
18196343 Silica-based nanoparticles for PFAS remediation Final Rejection The Connecticut Agricultural Experiment Station
18179822 SPINNING VESSEL SYSTEMS AND METHODS FOR MIXING, SUSPENDING PARTICULATES, ALIQUOTING, WASHING MAGNETIC BEADS, AND CONCENTRATING ANALYTES Non-Final OA V&P Scientific, Inc.
18116935 Power Unit Used for Swimming Pool Cleaning Machine and Swimming Pool Cleaning Machine Non-Final OA Yunda H&H Tech (Tianjin) Co., Ltd.
18042984 SYSTEM AND METHOD FOR THE TREATMENT OF POLLUTED WATERS, IN PARTICULAR WITH HEAVY METALS Final Rejection ECOSPRAY TECHNOLOGIES S.R.L.
17876510 Waste Liquid Treatment System and Method Final Rejection INBOX BEVERAGE, INC.

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