Prosecution Insights
Last updated: May 29, 2026

Examiner: NGUYEN, BOI-LIEN THI

Tech Center 1700 • Art Units: 1779 1787

This examiner grants 26% of resolved cases

Performance Statistics

25.9%
Allow Rate
-39.1% vs TC avg
99
Total Applications
+47.4%
Interview Lift
1287
Avg Prosecution Days
Based on 54 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
0%
§102 Novelty
93.3%
§103 Obviousness
6.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18469942 DESALINATION SYSTEM AND METHOD FOR DESALINATION OF WATER Non-Final OA KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
16902567 WATER INJECTION INTO A HYDROCARBON RESERVOIR Non-Final OA CONOCOPHILLIPS COMPANY
18557818 GREEN ALTERNATIVE POLYURETHANE ADHESIVE Non-Final OA Henkel AG & Co. KGaA
18704081 RECOVERING POLY(VINYL BUTYRAL) POLYMER Non-Final OA SOLUTIA INC.
17281242 Control of TOC, Perchlorate and PFAS through Advanced Oxidation and Selective Ion Exchange Process Final Rejection Evoqua Water Technologies LLC
17400917 WATER MANAGEMENT SYSTEM FOR ORE MINING OPERATION Final Rejection EXTRAKT PROCESS SOLUTIONS, LLC
18283869 INTERMEDIATE POWER STORE FOR POWER GENERATING SYSTEMS Non-Final OA TECHNISCHE UNIVERSITÄT DARMSTADT
17627935 FLOTATION CELL Non-Final OA Metso Outotec Finland Oy
17265003 Flotation Cell Non-Final OA Metso Outotec Finland Oy
18144669 METHOD OF CYCLONIC SEPARATION OF A FLOW OF MULTI-PHASE FLUID Final Rejection EnXL LLC
17914326 A Novel Single Hybrid Airlift Bioreactor for Wastewater Treatment Non-Final OA Mohammed Tofigh Rayhani
17797699 WASTEWATER TREATMENT SYSTEMS AND METHODS Non-Final OA WASE LTD
17763532 WASTEWATER TREATMENT APPARATUS Non-Final OA DE NORA WATER TECHNOLOGIES ITALY S.R.L.
17592692 REACTOR ALLOWING THE CONTINUOUS FILTRATION OF LIQUID FLOWING THROUGH A FILTER WITH IN SITU ELECTROCHEMICAL REGENERATION OF THE FILTER Non-Final OA UNIVERSITÉ GUSTAVE EIFFEL
17622162 METHOD FOR REDISTRIBUTING A FLAKE MATERIAL INTO AT LEAST TWO FLAKE SIZE FRACTIONS Non-Final OA Grafren AB
17442142 SEWAGE TREATMENT METHOD Non-Final OA EVOCRA PTY LIMITED
17274000 RAPID SEPARATION AND RECOVERY OF PATHOGENS FROM FOOD SAMPLES BY MICROFILTRATION ASSISTED COUNTERFLOW ELUTRIATION (MACE) Final Rejection PathOTrak Inc.
16169199 APPARATUS AND METHODS TO REMOVE TOXINS FROM BLOOD BY PLASMAPHERESIS Final Rejection DD Innovations Lab, LLC

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