Prosecution Insights
Last updated: April 19, 2026

Patterson + Sheridan, LLP - Western Digital

15 pending office actions • 4 clients

Portfolio Summary

15
Total Pending OAs
1
Final Rejections
14
Non-Final OAs

Client Portfolio (4 clients)

Client (Assignee)Pending OAs
Western Digital Technologies, Inc. 12
Institute Of Science Tokyo 1
Sandisk Technologies LLC 1
Tokyo Institute of Technology 1

Pending Office Actions

App #TitleClientExaminerArt UnitStatusFiled
19208323 DFL Reader Signal Sidebump Imbalance Reduction Western Digital Technologies, Inc. RENNER, CRAIG A 2688 Non-Final OA May 14, 2025
19067574 Improved YPtBi Composition in Spin Orbit Torque Devices Institute Of Science Tokyo KLIMOWICZ, WILLIAM JOSEPH 2688 Non-Final OA Feb 28, 2025
19041235 Shunt Reducing Migration Barrier Layer Materials and Insertion Techniques for Epitaxial Topological Materials Western Digital Technologies, Inc. RENNER, CRAIG A 2688 Non-Final OA Jan 30, 2025
19040639 RuAl and MgTiO Lamination For Effective Buffer and Interlayers For Topological Material Layers Western Digital Technologies, Inc. KLIMOWICZ, WILLIAM JOSEPH 2688 Non-Final OA Jan 29, 2025
18889747 Doping Process To Refine Grain Size For Smoother BiSb Film Surface Western Digital Technologies, Inc. TRAN, TAN N 2812 Non-Final OA Sep 19, 2024
18617335 Storage Device with Hybrid Encryption Levels Sandisk Technologies LLC SONG, HEE K 2497 Non-Final OA Mar 26, 2024
18506281 Peer-To-Peer Communication Using Drain Buffers In Multi-Function Device Western Digital Technologies, Inc. PHAN, DEAN 2184 Non-Final OA Nov 10, 2023
18505292 Optimizations For Payload Fetching In NVMe Commands Western Digital Technologies, Inc. KIM, ELIAS YOUNG 2135 Non-Final OA Nov 09, 2023
18461777 HMB Random and Sequential Access Coherency Approach Western Digital Technologies, Inc. BARTELS, CHRISTOPHER A. 2184 Non-Final OA Sep 06, 2023
18461939 RESOURCE ALLOCATION TO AVOID COMMAND TIMEOUTS IN A STORAGE DEVICE Western Digital Technologies, Inc. PINGA, JASON MICHAEL 2137 Non-Final OA Sep 06, 2023
18359674 ENSURING QUALITY OF SERVICE IN MULTI-TENANT ENVIRONMENT USING SGLS Western Digital Technologies, Inc. SWIFT, CHARLES M 2196 Non-Final OA Jul 26, 2023
18355090 ENHANCED READ RETRY (ERR) FOR DATA RECOVERY IN FLASH MEMORY Western Digital Technologies, Inc. RADKE, JAY W 2827 Non-Final OA Jul 19, 2023
18355102 Thermal Sensor insitu monitoring of Magnetic Recording head Tokyo Institute of Technology KIM, MICHELLE JINJU 2688 Non-Final OA Jul 19, 2023
18354174 USING INTERNAL OPERATION FILES HAVING KNOWN PATTERNS ACROSS MULTIPLE DEVICES Western Digital Technologies, Inc. ZECHER, CORDELIA P K 2100 Non-Final OA Jul 18, 2023
18308576 Magnetic Read Sensors Having Reduced Signal Imbalance Western Digital Technologies, Inc. CHAU, LISA N 1785 Final Rejection Apr 27, 2023

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