Prosecution Insights
Last updated: April 19, 2026

Examiner: CHAPEL, DEREK S

Tech Center 2800 • Art Units: 2872

This examiner grants 70% of resolved cases

Performance Statistics

70.0%
Allow Rate
+2.0% vs TC avg
996
Total Applications
+21.6%
Interview Lift
1077
Avg Prosecution Days
Based on 971 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
23.8%
§102 Novelty
41.2%
§103 Obviousness
24.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18340167 Systems With Coated Transparent Layers Non-Final OA Apple Inc.
18318306 Optical Assembly Non-Final OA 3M INNOVATIVE PROPERTIES COMPANY
18434243 WAVEGUIDE FOR MIXED REALITY VIEWING Non-Final OA GOOGLE LLC
18124200 TRANSPARENT PLATE AND FABRICATING METHOD THEREFOR, HOUSING, AND MOBILE TERMINAL Non-Final OA BYD COMPANY LIMITED
18451126 DISPLAY DEVICE Final Rejection Magnolia White Corporation
18472273 Apparatuses for a Microscope System, Microscope System, Methods and Computer Program Final Rejection Leica Microsystems CMS GmbH
18242903 Swept, Confocally-Aligned Planar Excitation (SCAPE) Microscopy Non-Final OA The Trustees of Columbia University in the City of New York
18125067 FAR-INFRARED RAY TRANSMISSION MEMBER AND METHOD FOR MANUFACTURING FAR-INFRARED RAY TRANSMISSION MEMBER Non-Final OA AGC Inc.
17791275 ROBOTIC MICROSCOPE AND CONTROL THEREOF Non-Final OA Brainlab AG
18452094 OPTICAL SYSTEM Non-Final OA TDK TAIWAN CORP.
18801853 RANGE FINDING BINOCULAR TELESCOPE Non-Final OA SHENZHEN RUIERXING ELECTRONIC CO., LTD
18382370 MULTI-LAYER DIELECTRIC COATINGS FOR HIGH-EFFICIENCY DIELECTRIC GRATINGS Final Rejection II-VI Delaware, Inc.
18359001 Lens Device Non-Final OA Asia Optical Co., Inc.
18567828 OPTICAL LAMINATE, POLARIZER, IMAGE DISPLAY DEVICE, AND METHOD FOR MANUFACTURING OPTICAL LAMINATE Non-Final OA DEXERIALS CORPORATION
17916714 CHROMATIC EFFECT LIGHT REFLECTIVE UNIT Non-Final OA CoeLux S.r.l.
18687042 AN IMAGING SYSTEM WITH A SCANNING MIRROR Non-Final OA OHB SYSTEM AG
18404812 OPTICAL IMAGE STABILIZATION DEVICE AND OPTICAL DEVICE Non-Final OA Changzhou AAC Raytech Optronics Co., Ltd.
18570127 Optical System and Method for Image Stabilization of such an Optical System Non-Final OA Acuvi AB
18363800 OPTICAL PRODUCT AND OPTICAL PRODUCT MANUFACTURING METHOD Final Rejection TOKAI OPTICAL CO. LTD.

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