Prosecution Insights
Last updated: April 19, 2026

Examiner: CHAU, LISA N

Tech Center 1700 • Art Units: 1785 1794

This examiner grants 25% of resolved cases

Performance Statistics

24.8%
Allow Rate
-40.2% vs TC avg
557
Total Applications
+14.4%
Interview Lift
1771
Avg Prosecution Days
Based on 500 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
13.9%
§102 Novelty
53.9%
§103 Obviousness
24.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17760796 PROCESS FOR THE PREPARATION OF AN ASPHALT MIX COMPOSITION Non-Final OA BASF SE
17619008 STABILIZED GYPSUM PARTICLES Final Rejection BASF SE
17813168 SOFT MAGNETIC ALLOY RIBBON AND MAGNETIC CORE Non-Final OA SEIKO EPSON CORPORATION
17649078 UPGRADING ASPHALT BY INCORPORATION OF BIO-OILS Final Rejection ExxonMobil Technology and Engineering Company
18666635 OXIDATION RESISTANCE OF LUBRICANT WITH MODIFIED EPOXIDE-BASED LINKAGES Non-Final OA Western Digital Technologies, Inc.
18656812 MEDIA LUBRICANTS SYNTHESIS WITH CLICK CHEMISTRY Non-Final OA Western Digital Technologies, Inc.
18593481 HIGH TEMPERATURE LUBRICANTS FOR MAGNETIC MEDIA HAVING MORE THERMALLY STABLE END GROUPS Non-Final OA Western Digital Technologies, Inc.
18308576 Magnetic Read Sensors Having Reduced Signal Imbalance Final Rejection Western Digital Technologies, Inc.
16283936 MAGNETIC MATERIAL, PERMANENT MAGNET, ROTARY ELECTRICAL MACHINE, AND VEHICLE Final Rejection KABUSHIKI KAISHA TOSHIBA
17696714 USE OF ANIMAL BY-PRODUCTS FOR CEMENT PRODUCTION Non-Final OA University of Kentucky Research Foundation
17992409 SOFT MAGNETIC POWDER, MAGNETIC CORE, MAGNETIC COMPONENT, AND ELECTRONIC DEVICE Non-Final OA TDK CORPORATION
17082389 MAGNETIC CORE AND COIL COMPONENT Non-Final OA TDK CORPORATION
18039527 Composition for Activating Super Sulfated Cement Final Rejection Amrize Technology Switzerland LLC
18363524 MAGNET ASSEMBLY FOR ORIENTATION AND ORIENTATION METHOD FOR ACTIVE MATERIAL LAYER USING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
18090438 ELECTRONIC DEVICE WITH ELECTROMAGNET Non-Final OA Advanced Semiconductor Engineering, Inc.
18347894 CONSTRUCTION MATERIALS PRODUCED USING WASTE VIA CARBON SEQUESTRATION Final Rejection The Hong Kong University of Science and Technology
18918416 MAGNETS COMPRISING A COATING INCLUDING AN ALUMINUM LAYER Final Rejection Xtalic Corporation
16923235 CLEANABLE FILTER MEDIUM Non-Final OA JOHNS MANVILLE
17607356 AUTOCLAVED CEMENT COMPOSITIONS Non-Final OA IMERTECH SAS
18757992 MAGNETIC DISK SUBSTRATE AND MAGNETIC DISK USING THE SAME Non-Final OA UACJ Corporation
18556133 MAGNETOSTRICTIVE MEMBER AND METHOD FOR MANUFACTURING MAGNETOSTRICTIVE MEMBER Non-Final OA SUMITOMO METAL MINING CO., LTD.
17137823 MAGNETIC CORE WITH DISTRIBUTED GAP AND FLUX DENSITY OFFSET Non-Final OA Power Integrations, Inc.
16804535 CELLULOSIC FIBERS COMPRISING EMBEDDED SILVER NANOPARTICLES AND USES THEROF Non-Final OA The United States of America, as Represented by the Secretary of Agriculture
17762453 EXPANDED GRANULAR MATERIAL CONSISTING OF MINERAL MATERIAL Non-Final OA Omya International AG
17995637 PARTIALLY PROTONATED ALKANOLAMINE COMPOSITION, AND USE IN A MILL Final Rejection CHRYSO
17937213 Asphalt Coating Compositions and Methods Final Rejection Asphalt Systems, Inc.

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