Prosecution Insights
Last updated: April 19, 2026

Examiner: ASFAW, MESFIN T

Tech Center 2800 • Art Units: 2851 2882 2884

This examiner grants 83% of resolved cases

Performance Statistics

82.6%
Allow Rate
+14.6% vs TC avg
994
Total Applications
+14.2%
Interview Lift
1028
Avg Prosecution Days
Based on 961 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
38.4%
§102 Novelty
53.6%
§103 Obviousness
3.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18783670 EXPOSURE EQUIPMENT Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18776559 RETICLE ENCLOSURE FOR LITHOGRAPHY SYSTEMS Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18775344 METHOD FOR DETERMINING A LOCATION OF AN OBJECT SURFACE Non-Final OA Carl Zeiss SMT GmbH
18590076 EUV LITHOGRAPHY SYSTEM COMPRISING A GAS-BINDING COMPONENT IN THE FORM OF A FOIL Final Rejection Carl Zeiss SMT GmbH
18714640 DIGITAL EXPOSURE SYSTEM Non-Final OA KOREA INSTITUTE OF MACHINERY & MATERIALS
18844757 METHOD FOR CORRECTING MEASUREMENTS IN THE MANUFACTURE OF INTEGRATED CIRCUITS AND ASSOCIATED APPARATUSES Non-Final OA ASML Netherlands B.V.
18843936 METHOD FOR DETERMINING A SPATIAL DISTRIBUTION OF A PARAMETER OF INTEREST OVER AT LEAST ONE SUBSTRATE OR PORTION THEREOF Non-Final OA ASML NETHERLANDS B.V.
18705509 DETERMINING AN ETCH EFFECT BASED ON AN ETCH BIAS DIRECTION Non-Final OA ASML NETHERLANDS B.V.
18690979 METHOD FOR FOCUS METROLOGY AND ASSOCIATED APPARATUSES Non-Final OA ASML Netherlands B.V.
18753608 OVERLAPPING RETICLE PLACEMENT FOR LITHOGRAPHIC FABRICATION OF A DIE Non-Final OA SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
18825486 CHAMBER, EXTREME ULTRAVIOLET LIGHT GENERATION SYSTEM, AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18807533 LINE NARROWING LASER DEVICE, AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18807607 DIFFERENTIAL EVACUATION DEVICE AND ELECTRONIC DEVICE MANUFACTURING METHOD Non-Final OA Gigaphoton Inc.
18709099 DETERMINATION OF A PROPERTY OF AN EXPOSURE LIGHT BEAM Non-Final OA Cymer, LLC
18725049 ALIGNMENT METHOD BASED ON HOLOGRAPHIC LITHOGRAPHY, SYSTEM AND DEVICE Non-Final OA HYPER-OPTICS (BEIJING) TECHNOLOGIES LTD.
18741659 Determination of Imaging Transfer Function of a Charged-Particle Exposure Apparatus Using Isofocal Dose Measurements Non-Final OA IMS Nanofabrication GmbH
18736307 HIGH RESOLUTION PHOTOLITHOGRAPHY Non-Final OA TERA-PRINT LLC
18709199 TEMPERATURE STABILIZATION OF CLIMATE CHAMBER Non-Final OA Mycronic AB

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