Prosecution Insights
Last updated: May 29, 2026

Examiner: ASFAW, MESFIN T

Tech Center 2800 • Art Units: 2851 2882 2884

This examiner grants 83% of resolved cases

Performance Statistics

82.7%
Allow Rate
+14.7% vs TC avg
997
Total Applications
+14.2%
Interview Lift
980
Avg Prosecution Days
Based on 969 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
16.5%
§102 Novelty
78.3%
§103 Obviousness
0.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18783670 EXPOSURE EQUIPMENT Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18740139 STRUCTURES FOR PATTERNING AND RELATED METHODS AND SYSTEMS Final Rejection ASM IP Holding B.V.
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
18542169 EXPOSURE APPARATUS, CONTROL METHOD, AND DEVICE MANUFACTURING METHOD Final Rejection NIKON CORPORATION
18776559 RETICLE ENCLOSURE FOR LITHOGRAPHY SYSTEMS Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18844757 METHOD FOR CORRECTING MEASUREMENTS IN THE MANUFACTURE OF INTEGRATED CIRCUITS AND ASSOCIATED APPARATUSES Non-Final OA ASML Netherlands B.V.
18844478 SETUP AND CONTROL METHODS FOR A LITHOGRAPHIC PROCESS 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 Final Rejection ASML Netherlands B.V.
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.
18588670 METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING SYSTEM Final Rejection NANYA TECHNOLOGY CORPORATION
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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