Prosecution Insights
Last updated: April 19, 2026

Examiner: ELLINGTON, MARRIAH C G

Tech Center 1700 • Art Units: 1773

This examiner grants 43% of resolved cases

Performance Statistics

42.9%
Allow Rate
-22.1% vs TC avg
60
Total Applications
+27.1%
Interview Lift
1260
Avg Prosecution Days
Based on 28 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
12.8%
§102 Novelty
44.5%
§103 Obviousness
38.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17834387 GRAPHENE-POLYAMIDE COMPOSITE MEMBRANES AND MICROPARTICLES, METHODS OF MANUFACTURE, AND METHODS OF USE Final Rejection University of Connecticut
17652617 FILTRATION FILTER Non-Final OA Murata Manufacturing Co., Ltd.
17606266 DIALYSIS SOLUTION REGENERATION METHOD Non-Final OA TORAY INDUSTRIES, INC.
17421757 MEMBRANE WITH IMMOBILIZED ANTICOAGULANT AND PROCESS FOR PRODUCING SAME Non-Final OA GAMBRO LUNDIA AB
18008955 PURE WATER PRODUCTION METHOD Non-Final OA KURITA WATER INDUSTRIES LTD.
17927734 REVERSE OSMOSIS MEMBRANE PROCESSING METHOD Final Rejection KURITA WATER INDUSTRIES LTD.
17921202 ANAEROBIC MEMBRANE BIOREACTOR COUPLED WITH UV ADVANCED DISINFECTION PROCESS FOR WASTEWATER TREATMENT Final Rejection KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
18011031 CLOSED-LOOP, BIOREGENERATIVE WATER PURIFICATION SYSTEMS AND METHODS Final Rejection UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF NASA
17619204 Method in Bioprocess Purification System Non-Final OA Cytiva Sweden AB
17632699 FILTRATION ASSEMBLY COMPRISING A FILTERING CARTRIDGE AND AN AUXILIARY DEVICE Final Rejection UFI FILTERS S.P.A.
17642909 MULTI-STAGE APPARATUS AND PROCESS FOR ADVANCED OXIDATION TREATMENT OF WASTEWATER Non-Final OA Nanjing University & Yancheng Academy of Environmental Protection Technology And Engineering
17253407 Apparatus and Method for Producing Alkaline Water Non-Final OA WET HOLDINGS (GLOBAL) LIMITED
17469046 FILTERING WATER BOTTLE Final Rejection HYDROS BOTTLE, LLC
17331681 SYSTEMS AND METHODS FOR CONTROLLED DEVELOPMENT AND DELIVERY OF GAS AND LIQUID MIXTURES Non-Final OA ChartWater, LLC

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month