Prosecution Insights
Last updated: April 19, 2026

Examiner: KASZTEJNA, MATTHEW JOHN

Tech Center 3900 • Art Units: 3739 3779 3795 3799 3993

This examiner grants 65% of resolved cases

Performance Statistics

64.7%
Allow Rate
+4.7% vs TC avg
933
Total Applications
+13.2%
Interview Lift
1326
Avg Prosecution Days
Based on 897 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
30.9%
§102 Novelty
41.3%
§103 Obviousness
20.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18490783 MEDICAL SUPPORT DEVICE, ENDOSCOPE APPARATUS, MEDICAL SUPPORT METHOD, AND PROGRAM Final Rejection FUJIFILM Corporation
18598397 Resealable Package Film Final Rejection TOPPAN Packaging Americas Holdings, Inc.
17382640 BACK EXOSKELETON TO ASSIST LIFTING Non-Final OA VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
18267654 MAGNETIC STIRRER Non-Final OA ELECTROLUX APPLIANCES AKTIEBOLAG
18258097 SYSTEM FOR DISPENSING INDIVIDUAL PORTIONS OF BEVERAGES PRECURSOR Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
18222138 BELT CONVEYOR WING PULLEY Non-Final OA Superior Industries, Inc.
16986119 GROOVES OF GOLF CLUB HEADS AND METHODS TO MANUFACTURE GROOVES OF GOLF CLUB HEADS Non-Final OA KARSTEN MANUFACTURING CORPORATION
16986109 GROOVES OF GOLF CLUB HEADS AND METHODS TO MANUFACTURE GROOVES OF GOLF CLUB HEADS Non-Final OA KARSTEN MANUFACTURING CORPORATION
18726111 CAPSULE ENDOSCOPE Non-Final OA Ankon Medical Technologies (Shanghai) Co., LTD
18654119 OROPHARYNGEAL CANNULA COMPATIBLE WITH BITE GUARD Non-Final OA INTERMED LABS LLC
18690714 AN ENDOSCOPY DEVICE Non-Final OA Singapore University of Technology and Design
18585503 ENDOSCOPIC DEVICE AND METHOD FOR OBTAINING LESION SIZE INFORMATION Final Rejection MEDINTECH INC.
18264620 COOKING EXPANSION MODULE Non-Final OA Sunbeam Products, Inc.
18273056 BEVERAGE PREPARATION DEVICE AND BEVERAGE MACHINE Non-Final OA Melitta Professional Coffee Solutions GmbH & Co. KG
18258513 FLAT BAKING TRAY FOR BAKING FOOD WITH A SYSTEM FOR COMPENSATING FOR THE DIFFERENCES IN THERMAL EXPANSION OF THE COMPONENTS THEREOF Non-Final OA OMEV SNC DI VIRGINIO E FIGLI
18034703 Valve Device Non-Final OA DE' LONGHI APPLIANCES S.R.L. CON UNICO SOCIO
17327235 Cooking Device Having Heat Sources in a Stacked Arrangement Non-Final OA Lifetime Products, Inc.
17952034 LIGHTING STRUCTURE Final Rejection Yi-Wen Tang

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