Prosecution Insights
Last updated: April 19, 2026

Examiner: ROSENAU, DEREK JOHN

Tech Center 3700 • Art Units: 2834 2837 3746

This examiner grants 77% of resolved cases

Performance Statistics

77.4%
Allow Rate
+7.4% vs TC avg
1263
Total Applications
+8.2%
Interview Lift
1136
Avg Prosecution Days
Based on 1229 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
29.3%
§102 Novelty
50.8%
§103 Obviousness
17.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17866329 ULTRASONIC LENS CLEANING SYSTEM WITH CALIBRATION Non-Final OA TEXAS INSTRUMENTS INCORPORATED
17488891 STAIR STEP FRAME STRUCTURES IN PIEZOELECTRIC RESONATORS Non-Final OA TEXAS INSTRUMENTS INCORPORATED
18181609 ACTUATOR Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18296009 ELECTRONIC DEVICE Non-Final OA SEIKO EPSON CORPORATION
17804998 Electromechanical Transducer Mount Non-Final OA SIM IP HXR LLC
17932303 ACOUSTIC DEVICES Final Rejection SHENZHEN SHOKZ CO., LTD.
17802778 POWER GENERATOR AND POWER GENERATION SYSTEM Final Rejection TDK CORPORATION
18124592 ACOUSTIC WAVE DEVICE Non-Final OA Murata Manufacturing Co., Ltd.
18113228 ACOUSTIC WAVE DEVICE Non-Final OA Murata Manufacturing Co., Ltd.
18108075 ELECTRONIC DEVICE Non-Final OA Murata Manufacturing Co., Ltd.
17974322 SUBSTRATE Final Rejection Murata Manufacturing Co., Ltd.
17969724 ACOUSTIC WAVE DEVICE Non-Final OA Murata Manufacturing Co., Ltd.
17691488 PIEZOELECTRIC ELEMENT AND METHOD FOR PRODUCING THE SAME Final Rejection Murata Manufacturing Co., Ltd.
17998769 MULTIFUNCTIONAL MULTI-PIEZO MATERIAL HAVING PIEZOELECTRIC PROPERTIES AND MECHANOLUMINESCENCE PROPERTIES, AND MULTIFUNCTIONAL PIEZOELECTRIC BODY, MEMS DEVICE, ROBOT, STRAIN/FATIGUE/DAMAGE DIAGNOSIS DEVICE, AND NON-DESTRUCTIVE INSPECTION METHOD USING SAME Non-Final OA NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
18188756 ACOUSTIC WAVE DEVICE WITH MULTILAYER INTERDIGITAL TRANSDUCER ELECTRODE Non-Final OA Skyworks Solutions, Inc.
18188808 MULTILAYER INTERDIGITAL TRANSDUCER ELECTRODE FOR SURFACE ACOUSTIC WAVE DEVICE Non-Final OA Skyworks Solutions, Inc.
18054631 BOUNDARY ACOUSTIC WAVE DEVICE WITH MULTI-LAYER PIEZOELECTRIC SUBSTRATE Non-Final OA Skyworks Solutions, Inc.
17938274 MULTILAYER PIEZOELECTRIC SUBSTRATE SURFACE ACOUSTIC WAVE DEVICE WITH SPURIOUS SHIFTING Final Rejection Skyworks Solutions, Inc.
17886725 MULTILAYER PIEZOELECTRIC SUBSTRATE DEVICE WITH POLYCRYSTALLINE SUBSTRATE Final Rejection SKYWORKS SOLUTIONS, INC.
17810918 MULTILAYER PIEZOELECTRIC SUBSTRATE DEVICE WITH REDUCED PIEZOELECTRIC MATERIAL CUT ANGLE Final Rejection Skyworks SOLUTIONS, INC.
18182379 ULTRASONIC TRANSDUCER MODULE Non-Final OA Qisda Corporation
17769276 MEMBRANE TRANSDUCER WITH IMPROVED BANDWIDTH Non-Final OA Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
17937137 BULK ACOUSTIC WAVE DEVICE WITH STACKED PIEZOELECTRIC LAYERS Non-Final OA Skyworks Global Pte. Ltd.
18179071 COMPOSITE SUBSTRATES INCLUDING EPITAXIAL MONOCRYSTALLINE PIEZOELECTRIC LAYERS BONDED TO SUBSTRATES, AND ACOUSTIC WAVE DEVICES FORMED WITH SUCH COMPOSITE SUBSTRATES Non-Final OA Soitec
18189777 Ultrasonic Transducer Non-Final OA KROHNE AG
17767438 Dielectric Transducer, Method for the Production Thereof and Actuator, Sensor or Generator Final Rejection Universität des Saarlandes
17945707 SURFACE-ACOUSTIC-WAVE RESONATOR AND FILTER UTILIZING EFFECTIVE REFLECTING STRUCTURE Non-Final OA TAI-SAW Technology Co., Ltd.
17760570 Doubly Rotated Quartz Crystal Resonators With Reduced Sensitivity to Acceleration Non-Final OA Michael Shawn MICILROY

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