Prosecution Insights
Last updated: May 29, 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
1,320
Total Applications
+18.6%
Interview Lift
751
Avg Prosecution Days
Based on 1292 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
15.8%
§102 Novelty
67.1%
§103 Obviousness
7.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17988178 VIBRATOR DEVICE Final Rejection SEIKO EPSON CORPORATION
18791466 MAGNETIC TAPE CARTRIDGE AND MANUFACTURING METHOD OF MAGNETIC TAPE CARTRIDGE Non-Final OA FUJIFILM CORPORATION
19200292 Magnetic Recording Head With Assisting Electric Current In Trailing Shield Non-Final OA Western Digital Technologies, Inc.
19040639 RuAl and MgTiO Lamination For Effective Buffer and Interlayers For Topological Material Layers Non-Final OA Western Digital Technologies, Inc.
18890207 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 Non-Final OA International Business Machines Corporation
18616915 TAPE GUIDE ASSEMBLY Non-Final OA International Business Machines Corporation
18608520 Tunnel Magneto-Resistive Sensor With Thin Nonmagnetic Material In Free Layer Non-Final OA Headway Technologies, Inc.
18911425 OPTICAL DISC DRIVE AND ELECTRONIC EQUIPMENT Non-Final OA Sony Interactive Entertainment Inc.
19176589 MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE Non-Final OA TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
18985652 DISK DEVICE Non-Final OA Toshiba Electronic Devices & Storage Corporation
18829872 DISK DEVICE Non-Final OA Toshiba Electronic Devices & Storage Corporation
17863457 ACOUSTIC WAVE DEVICE INCLUDING ELECTRODE FINGER WITH AND SECOND PORTIONS Non-Final OA Murata Manufacturing Co., Ltd.
19027299 MTJ DEVICE PERFORMANCE BY ADDING STRESS MODULATION LAYER TO MTJ DEVICE STRUCTURE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
19067574 Improved YPtBi Composition in Spin Orbit Torque Devices Non-Final OA INSTITUTE OF SCIENCE TOKYO
18958794 ENCLOSURE FOR COUPLING STORAGE DEVICE TO A COMPUTER Non-Final OA Sphere Entertainment Group, LLC
18245099 METHODS FOR DEPOSITING PIEZOELECTRIC MATERIALS, AND MATERIALS DEPOSITED THEREWITH Non-Final OA Qorvo US, Inc.
18055774 FLUID CONTROL DEVICE, VAPORIZATION SYSTEM, AND PIEZO ACTUATOR Final Rejection HORIBA STEC, Co., Ltd.
18027401 PIEZOELECTRIC DEVICE, FORCE SENSOR, AND BIOLOGICAL INFORMATION ACQUISITION DEVICE Non-Final OA MITSUI CHEMICALS, INC.
18042948 SURFACE ACOUSTIC WAVE SENSOR DEVICE FORMED ON A QUARTZ SUBSTRATE Final Rejection Soitec
17793357 ACOUSTICALLY-DRIVEN QUANTUM SPIN SENSOR Final Rejection Cornell University

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