Prosecution Insights
Last updated: August 18, 2026

Examiner: CHU, CHRIS H

Tech Center 2800 • Art Units: 2874

This examiner grants 53% of resolved cases

Performance Statistics

53.2%
Allow Rate
-14.8% vs TC avg
704
Total Applications
+9.3%
Interview Lift
1120
Avg Prosecution Days
Based on 662 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
20.5%
§102 Novelty
74.6%
§103 Obviousness
1.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17396114 WAVEGUIDE FOR HEAD-UP DISPLAY, INCLUDING REFLECTIVE OUTPUT COUPLING STRUCTURE Non-Final OA Snap Inc.
18089934 OPTICAL SEMICONDUCTOR PACKAGE AND METHOD Non-Final OA Intel Corporation
18188499 WAVEGUIDE WITH ORGANIC SOLID CRYSTAL SUBSTRATE Non-Final OA Meta Platforms Technologies, LLC
17895680 ELECTRICAL AND OPTICAL CONNECTOR Final Rejection Avago Technologies International Sales Pte. Limited
16714100 OPTICAL GLASS, AND OPTICAL ELEMENT, OPTICAL SYSTEM, CEMENTED LENS, INTERCHANGEABLE CAMERA LENS, AND OPTICAL DEVICE USING SAME Final Rejection NIKON CORPORATION
18786922 MODE CONVERSION WAVEGUIDE SYSTEM Non-Final OA The Boeing Company
18452613 SINGLE-MODE OPTICAL FIBER WITH THIN COATING FOR HIGH DENSITY CABLES AND INTERCONNECTS Non-Final OA CORNING INCORPORATED
18211696 CO-ALKALI DOPED OPTICAL FIBERS Final Rejection CORNING INCORPORATED
18229936 ANNEALED SUBUNITS IN BUNDLED DROP ASSEMBLY AND PROCESS OF ANNEALING SUBUNITS IN BUNDLED DROP ASSEMBLY Final Rejection CORNING RESEARCH & DEVELOPMENT CORPORATION
18206268 MULTICORE OPTICAL FIBER SYSTEM CONNECTIVITY IN DATA CENTERS Non-Final OA CORNING RESEARCH & DEVELOPMENT CORPORATION
18469607 OPTICAL FIBER Final Rejection FURUKAWA ELECTRIC CO., LTD.
18157626 OPTICAL COUPLER FOR VERTICAL OPTICAL COUPLING Final Rejection Cisco Technology, Inc.
18755868 RESIN COMPOSITION FOR COLORED COATING ON OPTICAL FIBER, OPTICAL FIBER, AND OPTICAL FIBER RIBBON Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18686932 OPTICAL FIBER Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
17519411 Integrated Optical Switch Having Doped Fiber/Waveguide Amplifiers Packaged in A Transposer Final Rejection Mellanox Technologies, Ltd.
18501602 PHOTODETECTORS WITH A NOTCHED LIGHT-ABSORBING LAYER Non-Final OA GlobalFoundries U.S. Inc.
17452197 METHOD FOR MANUFACTURING A SEMICONDUCTOR STRUCTURE Non-Final OA Soitec
18556117 IMPROVED PHOTONIC PACKAGING Non-Final OA Sentea NV

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