Prosecution Insights
Last updated: April 19, 2026

Examiner: CHIU, TAK LIANG

Tech Center 1700 • Art Units: 1777

This examiner grants 53% of resolved cases

Performance Statistics

53.1%
Allow Rate
-11.9% vs TC avg
69
Total Applications
+37.2%
Interview Lift
1346
Avg Prosecution Days
Based on 32 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
17.6%
§102 Novelty
42.3%
§103 Obviousness
37.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18026480 CHARGED MEMBRANES INCORPORATED WITH POROUS POLYMER FRAMEWORKS Non-Final OA The Regents of the University of California
18036848 Nanofiltration Membrane for Precise Solute-Solute Separation Non-Final OA Georgia Tech Research Corporation
18022389 DRAINAGE TREATMENT SYSTEM AND DRAINAGE TREATMENT METHOD Final Rejection HITACHI, LTD.
17609072 COMPOSITION FOR FORMING SEPARATION MEMBRANE ACTIVE LAYER, METHOD FOR PRODUCING SEPARATION MEMBRANE, SEPARATION MEMBRANE, AND WATER TREATMENT MODULE Final Rejection LG CHEM, LTD.
18004678 WET AIR OXIDATION SYSTEM WITH SHELL AND TUBE HEAT EXCHANGER Final Rejection LUMMUS TECHNOLOGY LLC
18268454 POLYFLUORENE-BASED ANION EXCHANGE COMPOSITE MEMBRANE AND METHOD FOR PREPARING SAME Non-Final OA IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
18257903 A SEPARATION DEVICE AND COMPOSITE MEMBRANE Non-Final OA NATIONAL UNIVERSITY OF SINGAPORE
17924564 POROUS MEMBRANE LAMINATE, FILTER ELEMENT AND METHOD OF MANUFACTURING POROUS MEMBRANE LAMINATE Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18267974 AUTOMATIC MONITORING SYSTEM FOR SOLUTION-PHASE SYNTHESIS Non-Final OA Peking University
18025272 WATER TREATMENT SYSTEM, PURE WATER PRODUCTION METHOD, AND WATER TREATMENT METHOD Final Rejection ORGANO CORPORATION
18026878 MOLECULARLY POROUS CROSS-LINKED MEMBRANES Non-Final OA King Abdullah University of Science and Technology
17773898 POROUS ALUMINOSILICATE COMPOSITIONS FOR CONTAMINANT METAL REMOVAL IN WATER TREATMENT Final Rejection BASF Corporation
18371736 SAMPLE PURIFICATION DEVICE Non-Final OA STRATEC SE
18482437 PFAS ISOLATOR COLUMN SCOUTING Non-Final OA Waters Technologies Corporation
17770134 METHOD FOR INTERMITTENTLY CLEANING A FILTER, AND FILTER DEVICE FOR A METAL PRINTING DEVICE Non-Final OA Becker Additive Manufacturing Solutions GmbH
18091651 DEVICES AND METHODS FOR SAMPLE CHARACTERIZATION Final Rejection Intabio, LLC
17595901 A BIOCOMPATIBLE MEMBRANE COMPOSITE Final Rejection Viacyte, Inc.
17958006 SYSTEM FOR REMOVING IMPURITIES OUT OF TAURINE MOTHER LIQUOR AND TAURINE MOTHER LIQUOR RECOVERY Final Rejection QIANJIANG YONGAN PHARMACEUTICAL CO LTD
17634782 CONTROL OF GREEN MACROALGAE BLOOMS Non-Final OA ALGAR HOLDING LTD
17310264 FILTER FOR CHEMICAL REACTORS Final Rejection PHARMAFLUIDICS NV

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