Prosecution Insights
Last updated: August 17, 2026

Examiner: KLIMOWICZ, WILLIAM JOSEPH

Tech Center 2600 • Art Units: 2627 2686 2687 2688

This examiner grants 81% of resolved cases

Performance Statistics

80.8%
Allow Rate
+18.8% vs TC avg
1,341
Total Applications
+18.2%
Interview Lift
752
Avg Prosecution Days
Based on 1304 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
29.7%
§102 Novelty
44.3%
§103 Obviousness
18.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19156540 MAGNETIC RECORDING MEDIUM Non-Final OA SONY GROUP CORPORATION
19150473 MAGNETIC RECORDING MEDIUM Non-Final OA SONY GROUP CORPORATION
19112457 MAGNETIC TAPE AND TAPE CARTRIDGE Final Rejection Sony Group Corporation
19316201 MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC TAPE APPARATUS Non-Final OA FUJIFILM Corporation
18791466 MAGNETIC TAPE CARTRIDGE AND MANUFACTURING METHOD OF MAGNETIC TAPE CARTRIDGE Non-Final OA FUJIFILM CORPORATION
18339550 RESONATOR DEVICE Final Rejection SEIKO EPSON CORPORATION
18580480 HYBRID ELECTROMECHANICAL TRANSFORMER Non-Final OA University of Florida Research Foundation, Inc.
19027299 MTJ DEVICE PERFORMANCE BY ADDING STRESS MODULATION LAYER TO MTJ DEVICE STRUCTURE Final Rejection Taiwan Semiconductor Manufacturing Company, Ltd.
19244507 Magnetic Recording Head with A Cross-Track Current Flow In A Low Resistance Path Non-Final OA Western Digital Technologies, Inc.
19227025 HARD DISK DRIVE INTERPOSE SWAGE Non-Final OA Western Digital Technologies, Inc.
19221385 HARD DISK DRIVE SUSPENSION FINE ACTUATOR WITH MINIATURIZED SINGLE-LAYER PIEZOELECTRIC ELEMENTS Non-Final OA Western Digital Technologies, Inc.
19201452 Middle Shields Two-Dimensional Magnetic Recording Read Heads Non-Final OA Western Digital Technologies, Inc.
19076557 SUSPENSION ARM AND SLIDER CONTACT FOR MAGNETIC STORAGE DEVICE Non-Final OA Western Digital Technologies, Inc.
18890207 Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof Non-Final OA Western Digital Technologies, Inc.
18830299 INTER-COVER PLACEMENT OF GAS-PRODUCING SUBSTANCES IN DATA STORAGE DEVICES Final Rejection Western Digital Technologies, Inc.
18749413 Dual Free Layer TMR Reader with Shaped Rear Bias and Methods of Forming Thereof Final Rejection Western Digital Technologies, Inc.
18758384 LOW CROSSTALK PIGGY-BACK TAPE HEAD Non-Final OA International Business Machines Corporation
18616936 TAPE PATH WITH MOVABLE TAPE SUPPORT Final Rejection International Business Machines Corporation
18616915 TAPE GUIDE ASSEMBLY Final Rejection International Business Machines Corporation
18393739 ACOUSTIC WAVE DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA RichWave Technology Corp.
18403964 PMUT With Partially Inactive Piezoelectric Non-Final OA InvenSense, Inc.

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