Prosecution Insights
Last updated: April 19, 2026

Examiner: STOFFA, WYATT A

Tech Center 2800 • Art Units: 2872 2881 2892

This examiner grants 80% of resolved cases

Performance Statistics

80.1%
Allow Rate
+12.1% vs TC avg
1084
Total Applications
+22.5%
Interview Lift
908
Avg Prosecution Days
Based on 1003 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
23.2%
§102 Novelty
37.3%
§103 Obviousness
29.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18131485 PET CARE ROBOT STATION Non-Final OA Samsung Electronics Co., Ltd.
18202197 MULTI-ELEMENT ATOM ARRAY Final Rejection The University of Chicago
18119971 HAND-HELD STERILE CONNECTION DEVICE, SYSTEM, AND METHOD OF USE Final Rejection Fenwal, Inc.
18319453 ENDOSCOPE STERILIZATION DEVICE AND ENDOSCOPE STERILIZATION SYSTEM Final Rejection FUJIFILM Corporation
18424564 METHODS AND SYSTEMS FOR PHASE GATES IN QUANTUM COMPUTERS Non-Final OA Universal Quantum Ltd
18160016 METHOD FOR MASS SPECTROMETRY AND MASS SPECTROMETER Non-Final OA SHIMADZU CORPORATION
18695398 LIQUID CRYSTAL ELASTOMER PRECURSOR SOLUTION MATERIAL AND PHOTOPOLYMERIZATION APPARATUS FOR PREPARING LIQUID CRYSTAL ELASTOMER WITH THE SAME Final Rejection Seoul National University R&DB Foundation
18228599 DEVICES AND PROCESSES FOR MASS SPECTROMETRY UTILIZING VIBRATING SHARP-EDGE SPRAY IONIZATION Non-Final OA West Virginia University Board of Governors on Behalf of West Virginia University
18681404 Charged Particle Beam Device Non-Final OA Hitachi High-Tech Corporation
17860084 DRY-TYPE CLEANSING APPARATUS FOR WAFERS Final Rejection SEMES CO., LTD.
18397896 CHARGED PARTICLE ASSESSMENT SYSTEM AND METHOD OF ALIGNING A SAMPLE IN A CHARGED PARTICLE ASSESSMENT SYSTEM Non-Final OA ASML Netherlands B.V.
18085501 METHOD AND SYSTEM FOR PROVIDING MULTIPLE SEALS FOR A COMPACT VACUUM CELL Non-Final OA ColdQuanta, Inc.
17687643 COHERENT OSCILLATORY MATTERWAVE RESONATOR SYSTEM Final Rejection ColdQuanta, Inc.
18510705 EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18163529 EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18406500 ATOMIC OBJECT CONFINEMENT APPARATUS WITH RADIO FREQUENCY ELECTRODE SHAPING FOR PERIODIC BOUNDARY CONDITIONS Non-Final OA Quantinuum LLC
18685534 Extending Operational Lifetime of a Mass Spectrometer Non-Final OA DH Technologies Development Pte. Ltd.
18276609 Method of Performing Ms/Ms of High Intensity Ion Beams Using a Bandpass Filtering Collision Cell to Enhance Mass Spectrometry Robustness Non-Final OA DH Technologies Development Pte. Ltd.
18258359 DYNAMIC EJECTION DELAY TIME FOR ACOUSTIC EJECTION MASS SPECTROMETRY Final Rejection DH Technologies Development Pte. Ltd.
18037582 Method of Performing MS/MS of High Intensity Ion Beams Using a Bandpass Filtering Collision Cell to Enhance Mass Spectrometry Robustness Non-Final OA DH Technologies Development Pte. Ltd.
18556409 NEBULISER OUTLET Non-Final OA Micromass UK Limited
18260285 SAMPLE ANALYSIS Non-Final OA Micromass UK Limited
18725706 MIRROR ARRANGEMENT FOR MAGNETO-OPTICAL TRAP Non-Final OA Atomionics Pte Ltd
18476964 ADAPTIVE SLICE DEPTH IN SLICE & VIEW WORKFLOW Non-Final OA FEI Company
18355956 METHOD OF EXAMINING A SAMPLE USING A CHARGED PARTICLE MICROSCOPE Final Rejection FEI Company
18474329 MULTI CHARGED PARTICLE BEAM WRITING APPARATUS Final Rejection NuFlare Technology, Inc.
18265897 CHARGED PARTICLE MICROSCOPY MEMS SAMPLE SUPPORT Final Rejection UNIVERSITEIT ANTWERPEN
18039400 VEHICLE LAVATORY UV LIGHT SANITIZATION SYSTEM Non-Final OA Safran Cabin Inc.
18225837 Quantum Devices with Left-Handed Ring Resonators Non-Final OA Forschungszentrum Jülich GmbH
18339809 ELECTRICAL ISOLATION OF DEVICES OPERATING AT CRYOGENIC TEMPERATURES Final Rejection IonQ, Inc.

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