Prosecution Insights
Last updated: October 27, 2026

Steven H Whitesell, USPTO Patent Examiner

Listed by the USPTO as WHITESELL, STEVEN H

Tech Center 2800 • Art Units: 1737 1759 2682 2813 2851 2882

This examiner grants 82% of resolved cases

Analysis

WHITESELL, STEVEN H is assigned to Tech Center 2800 and Art Unit 1737. His record includes 979 resolved cases, with an allowance rate of 82.0% and a median of 958 days to allowance. The 12.9% interview lift is positive, indicating that interviews may provide additional value in a docket with a high overall allowance rate.

The listed companies are ASML Holding N.V., Carl Zeiss SMT GmbH, and Taiwan Semiconductor Manufacturing Company, Ltd. The listed firms are Pillsbury Winthrop Shaw Pittman, LLP, Studebaker Brackett PLLC, and EDELL, SHAPIRO & FINNAN, LLC. The substantial case volume makes the observed pattern useful for planning. Practitioners should use interviews to resolve targeted issues while preserving commercially important scope, and should account for the 958-day median.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

82.0%
Allow Rate
+14.0% vs TC avg
1,029
Total Applications
+12.9%
Interview Lift
958
Avg Prosecution Days
Based on 979 resolved cases, 2023–2026

Rejection Statute Breakdown

3.2%
§101 Eligibility
27.9%
§102 Novelty
49.8%
§103 Obviousness
13.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19064395 HOLDING APPARATUS, SUBSTRATE PROCESSING APPARATUS AND ARTICLE MANUFACTURING METHOD Non-Final OA CANON KABUSHIKI KAISHA
18060593 LITHOGRAPHIC PROCESSES FOR MAKING POLYMER-BASED ELEMENTS Non-Final OA Intel Corporation
17896105 BUTTRESSED FIELD TARGET DESIGN FOR OPTICAL AND E-BEAM BASED METROLOGY TO ENABLE FIRST LAYER PRINT REGISTRATION MEASUREMENTS FOR FIELD SHAPE MATCHING AND RETICLE STITCHING IN HIGH NA LITHOGRAPHY Final Rejection Intel Corporation
18644211 SUBSTRATE TREATMENT APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18528903 EXPOSURE APPARATUS Final Rejection NIKON CORPORATION
19170138 DEVELOPING APPARATUS, DEVELOPING METHOD, AND COMPUTER PROGRAM Non-Final OA Tokyo Electron Limited
19169567 EUV WAFER DEFECT IMPROVEMENT AND METHOD OF COLLECTING NONCONDUCTIVE PARTICLES Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
19088255 REDUCE MASK DEFECT IMPACT BY CONTAMINATION DECOMPOSE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18787928 RETICLE ENCLOSURE FOR LITHOGRAPHY SYSTEMS Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18638982 RADIATION SOURCE APPARATUS AND METHOD FOR OPERATING THE SAME Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
18552906 DRAWING APPARATUS AND DRAWING METHOD Final Rejection SCREEN Holdings Co., Ltd.
19011092 SUBSTRATE HOLDER FOR USE IN A LITHOGRAPHIC APPARATUS Final Rejection ASML NETHERLANDS B.V
18859655 MIRROR ASSEMBLY FOR MICROMIRROR ARRAY Final Rejection ASML Netherlands B.V.
18716806 MACHINE LEARNING MODEL FOR ASYMMETRY-INDUCED OVERLAY ERROR CORRECTION Final Rejection ASML NETHERLANDS B.V.
18294202 AN OBJECT GRIPPER, A METHOD OF HOLDING AN OBJECT AND A LITHOGRAPHIC APPARATUS Final Rejection ASML NETHERLANDS B.V.
18533662 OBJECT TABLE, A STAGE APPARATUS AND A LITHOGRAPHIC APPARATUS Final Rejection ASML NETHERLANDS B. V.
18511454 PROCESS WINDOW BASED ON DEFECT PROBABILITY Final Rejection ASML NETHERLANDS B.V.
18025183 TARGET STRUCTURE AND ASSOCIATED METHODS AND APPARATUS Final Rejection ASML NETHERLANDS B.V.
17874582 COMPUTATIONAL METROLOGY BASED CORRECTION AND CONTROL Non-Final OA ASML NETHERLANDS B.V.
17277583 METROLOGY METHOD AND APPARATUS THEREFOR Non-Final OA ASML NETHERLANDS B.V.
19082444 METHOD FOR OPERATING A PROJECTION EXPOSURE SYSTEM Non-Final OA Carl Zeiss SMT GmbH
19073220 MICROELECTROMECHANICAL DEVICE Non-Final OA Carl Zeiss SMT GmbH
19018304 LENS ELEMENT FOR A MICROLITHOGRAPHIC PROJECTION EXPOSURE APPARATUS DESIGNED FOR OPERATION IN THE DUV, AND METHOD AND ARRANGEMENT FOR FORMING AN ANTIREFLECTION LAYER Non-Final OA Carl Zeiss SMT GmbH
18901513 DEVICE AND METHOD FOR ALIGNING TWO COMPONENTS Non-Final OA Carl Zeiss SMT GmbH
18895292 DRIVE DEVICE, OPTICAL SYSTEM AND LITHOGRAPHY APPARATUS Final Rejection Carl Zeiss SMT GmbH
18362630 METHOD FOR PRODUCING A MULTI-PART MIRROR OF A PROJECTION ILLUMINATION SYSTEM FOR MICROLITHOGRAPHY Final Rejection Carl Zeiss SMT Gmbh
18421454 OVERLAY METROLOGY TARGET FOR DIE-TO-WAFER OVERLAY METROLOGY Non-Final OA KLA Corporation
19106760 FOREIGN MATTER REMOVING DEVICE, PELLICLE PRODUCING DEVICE, PELLICLE FILM PRODUCING METHOD, AND PELLICLE Non-Final OA MITSUI CHEMICALS, INC.
18949144 APPARATUS AND METHOD FOR EXPOSURE OF RELIEF PRECURSORS Non-Final OA XSYS PREPRESS NV

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Frequently Asked Questions

What is examiner Steven H Whitesell's allowance rate?

82.0% of resolved applications examined by Steven H Whitesell were allowed (979 resolved cases), compared with 63.4% across Art Unit 1737 over the last five years.

Does an interview help with examiner Steven H Whitesell?

This examiner's interview lift is +12.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Steven H Whitesell take to allow a patent?

Applications allowed by Steven H Whitesell took 958 days on average from filing to allowance.

Which art unit does examiner Steven H Whitesell work in?

Steven H Whitesell examines applications in Art Unit 1737 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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