Prosecution Insights
Last updated: April 19, 2026

Examiner: MASKELL, MICHAEL P

Tech Center 3700 • Art Units: 2878 2881 3752

This examiner grants 86% of resolved cases

Performance Statistics

86.2%
Allow Rate
+16.2% vs TC avg
1081
Total Applications
+10.1%
Interview Lift
853
Avg Prosecution Days
Based on 1064 resolved cases, 2023–2026

Rejection Statute Breakdown

3.2%
§101 Eligibility
37.4%
§102 Novelty
38.3%
§103 Obviousness
15.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18035668 METHOD AND APPARATUS FOR MASS SPECTROMETRY Non-Final OA Ohio State Innovation Foundation
18567350 SAMPLE LIQUID ATOMIZATION DEVICE AND ANALYSIS DEVICE Non-Final OA Hitachi High-Tech Corporation
18246748 OPTICAL COMPONENT FOR DEEP ULTRAVIOLET LIGHT SOURCE Non-Final OA Cymer, LLC
18565850 SYSTEM AND METHODS FOR SAMPLE PROCESSING WITH MASS SPECTROMETRY INCORPORATING MAGNETIC BEADS Non-Final OA DH Technologies Development Pte. Ltd.
18254625 SYSTEM AND METHODS FOR SEGMENTED FLOW ANALYSIS Non-Final OA DH Technologies Development Pte. Ltd.
18516040 Method and System for Imaging a Sample Non-Final OA FEI Company
18545900 SYSTEM AND METHOD FOR DELIVERY OF AN ANALYTE AND A REFERENCE Non-Final OA Thermo Fisher Scientific (Bremen) GmbH
18251853 MAGNET POSITIONING SYSTEM FOR ION SOURCE Non-Final OA Thermo Finnigan LLC
18294051 MAGNETIC ROTATION DEVICE FOR HIGH VACUUM APPLICATIONS SUCH AS ION AND ISOTOPE PRODUCTION Non-Final OA SHINE Technologies, LLC
18293524 METHOD FOR ANTIFUNGAL TREATMENT OF TURF Non-Final OA TEAM GREEN LIGHT
18574412 A MULTI-MODE LOW-VOLTAGE ELECTRON MICROSCOPE Non-Final OA DELONG INSTRUMENTS A.S.
18559065 A PORTABLE DEVICE CONFIGURED TO PERFORM PROCESSING OPERATIONS IN RESPECT OF FLUID STORED IN A CONTAINER Non-Final OA NUVOE PTY LTD
18316184 FILTER SYSTEM AND SEPARATION METHOD Non-Final OA KETEK GmbH Halbleiter-und Reinraumtechnik
18165013 METHOD AND SYSTEM FOR IDENTIFYING STRUCTURE OF COMPOUND Final Rejection OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
18009569 FILTER FOR SANITIZING AIR IN INDOOR ENVIRONMENTS Final Rejection Promau Engineering S.r.l.

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