Prosecution Insights
Last updated: October 02, 2026

Examiner: BESLER, CHRISTOPHER JAMES

Tech Center 4100 • Art Units: 3616 3722 3723 3726 4100

This examiner grants 68% of resolved cases

Analysis

Christopher James Besler is an examiner in Tech Center 4100 and Art Unit 3616 with 894 resolved cases. He has an allowance rate of 68.3 percent and a median days to allowance of 1172. These metrics provide a picture of the prosecution landscape for the 894 cases he has handled. The 1172-day median is a benchmark for the duration of applications in the 4100 tech center.

The interview lift of 41.4 percent is a significant figure compared to the 68.3 percent allowance rate. It suggests that interviews are a productive way to increase the probability of a grant. With 894 cases resolved, the 1172-day median pendency is a factor for applicants to manage. The 41.4 percent lift is an indicator that verbal communication can help resolve issues that written responses might not. Practitioners should use the 1172-day median to set expectations while utilizing the 41.4 percent lift to improve their odds.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

68.4%
Allow Rate
+8.4% vs TC avg
939
Total Applications
+41.5%
Interview Lift
1170
Avg Prosecution Days
Based on 896 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
18.5%
§102 Novelty
39.4%
§103 Obviousness
37.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18794206 POSITIONING STRUCTURE Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18740993 VEHICLE STAND Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18414773 SUBSTRATE PLANARIZATION DEVICE, DEPOSITION SYSTEM INCLUDING THE SAME, AND METHOD OF OPERATING SUBSTRATE PLANARIZATION DEVICE Non-Final OA Samsung Display Co., Ltd.
18551552 TOOL BIT EXTRACTOR Final Rejection MILWAUKEE ELECTRIC TOOL CORPORATION
18791670 Cable Feeding Device Having a Coupling Unit for Detachably Coupling to a Pulling Means Non-Final OA Robert Bosch GmbH
18693799 Multipurpose Jig For Manufacturing Rechargeable Battery And Setting Method Of Manufacturing Apparatus Using The Same Final Rejection LG Energy Solution, Ltd.
18666356 VEHICLE FINAL ASSEMBLY LINE AND VEHICLE FINAL ASSEMBLY METHOD Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18527026 PALLET, BATTERY PROCESSING DEVICE, AND BATTERY PRODUCTION LINE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18550999 POSITIONER Non-Final OA FANUC CORPORATION
19053703 LOW PRESSURE TURBINE SHAFT INSTALLATION TOOL Non-Final OA RTX Corporation
18719362 HEXAPOD-BASED PEDESTAL SYSTEMS FOR USE IN SEMICONDUCTOR PROCESSING OPERATIONS Non-Final OA Lam Research Corporation
18792987 SUBSTRATE HOLDER SURFACE TREATMENTS PROVIDING CORROSION RESISTANCE AND WEAR RESISTANCE Non-Final OA Applied Materials, Inc.
18384235 PNEUMATIC SYSTEMS AND METHODS FOR PROVIDING HIGH FLOW VACUUM ACQUISITION IN AUTOMATED SYSTEMS Final Rejection Berkshire Grey Operating Company, Inc.
18664942 PROCESS AND SYSTEM FOR INSTALLING REPLACEMENT DOOR Non-Final OA Masonite Corporation
18833303 HOLDING MEMBER AND METHOD OF MANUFACTURING HOLDING MEMBER Non-Final OA Niterra Co., Ltd.
18726891 POSITIONING DEVICE AND MOUNTING DEVICE USING SAME Non-Final OA TORAY ENGINEERING CO., LTD.
18290302 PLANAR POSITIONING APPARATUS AND WORKBENCH Final Rejection PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
18522038 STAGE ACTUATOR PARTICLE SHIELD Final Rejection Onto Innovation Inc.
18812989 VACUUM HOLE CONNECTOR, SUBSTRATE SUPPORT, SUBSTRATE TREATMENT APPARATUS Non-Final OA SEMES CO., LTD.
18676963 FIXTURE Non-Final OA GlobalFoundries U.S. Inc.
18824131 CHAIN RESTRAINT Final Rejection Wireman Pty Limited
18913169 CLAMPING MECHANISM AND CLAMPING APPARATUS Non-Final OA Qingzhou Pengcheng Packaging Machinery Co., Ltd.
18198632 CONDUIT COUPLING Non-Final OA S-P Products, Inc.
18822517 CLAMPING DEVICE Non-Final OA FCS SYSTEM SRL
18793532 WORKBENCH SYSTEM Non-Final OA Automata Technologies Limited
18790299 Trailer Tongue Jack Assembly with Manual and Torque Limited Power Drill Driver Non-Final OA Dutton-Lainson Company
18833000 WORKPIECE CARRIER FRAME AND WORKPIECE CARRIER FRAME SYSTEM Non-Final OA ZELL Systemtechnik GmbH
18728721 Fixing device and method for fixing a belt connector to a belt band end of a transport belt Non-Final OA MATO GMBH & CO. KG
18755481 Wheel Component Handling Device Non-Final OA Prowse Holdings Pty Ltd
18642482 Nut Restrainer, and Methods of Use Non-Final OA Atlas Tube Connections, LLC

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