Prosecution Insights
Last updated: April 19, 2026

Examiner: SIEFKE, SAMUEL P

Tech Center 1700 • Art Units: 1758 1772 1779 1797

This examiner grants 63% of resolved cases

Performance Statistics

63.1%
Allow Rate
-1.9% vs TC avg
1067
Total Applications
+17.0%
Interview Lift
1314
Avg Prosecution Days
Based on 1031 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
47.5%
§102 Novelty
30.1%
§103 Obviousness
11.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17993676 BIOSENSOR CARTRIDGES AND BIOSENSOR SYSTEM HAVING THE SAME Non-Final OA LG ELECTRONICS INC.
17993833 BIOSENSOR CARTRIDGE AND BIOSENSOR DIAGNOSTIC DEVICE FOR READING SAME Non-Final OA LG ELECTRONICS INC.
16972386 TRACELESS IMMOBILIZATION OF ANALYTES FOR SAMDI MASS SPECTROMETRY Final Rejection NORTHWESTERN UNIVERSITY
18006445 MICROFLUIDIC ELECTROCHEMICAL ANALYTE DETECTORS Non-Final OA Massachusetts Institute of Technology
17786383 APPARATUS AND METHOD FOR SOLID PHASE EXTRACTION Final Rejection GE HEALTHCARE LIMITED
18105398 MONITORING ANALYSIS DEVICE AND MONITORING ANALYSIS METHOD Final Rejection SHIMADZU CORPORATION
17516909 INTERNAL POSITIVE CONTROL FOR DIAGNOSTIC ASSAYS Final Rejection Analog Devices, Inc.
18014519 CALIBRATION CURVE GENERATION METHOD, AUTONOMOUS ANALYSIS DEVICE, AND CALIBRATION CURVE GENERATION PROGRAM Final Rejection HITACHI HIGH-TECH CORPORATION
17432955 USER DETECTION AND IDENTIFICATION IN A BATHROOM SETTING Final Rejection TOI LABS, INC.
17223211 UNIT DEVICE, METHOD, AND ASSEMBLY Non-Final OA Charm Sciences, Inc.
17918388 SAMPLING DEVICE Final Rejection Readygo Diagnostics Limited
18349506 MICROARRAY BASED SAMPLE DETECTION SYSTEM Non-Final OA Akonni Biosystems, Inc.
18090163 STABILIZED N,N-DIETHYL-P-PHENYLENEDIAMINE SOLUTION AND METHOD FOR DETECTING CHLORINE Final Rejection HACH COMPANY
18214801 SYSTEM FOR PORTABLE AND EASY-TO-USE DETECTION OF ANALYTES WITH MOBILE COMPUTING DEVICE Non-Final OA Siro Diagnostics, Inc.
18213388 BLOOD TESTING SYSTEM AND METHOD Non-Final OA C A Casyso GmbH
18176949 NON-TOXIC FORMULATION FOR COLLECTING BIOLOGICAL SAMPLES, AND DEVICE FOR CAPTURING AND ELUTING NUCLEIC ACIDS IN THE SAMPLES Non-Final OA Definitive Biotechnologies LLC
18016194 CONTAINER SYSTEM FOR RECEIVING A LIQUID SAMPLE Non-Final OA UNIVERSITÉ DE LIÈGE
18022187 DEVICE AND METHOD FOR IDENTIFYING PEPTIDES AND PROTEINS IN A FLUID SAMPLE Non-Final OA ILOF - INTELLIGENT LAB ON FIBER, LDA
18020883 MICROFLUIDIC BASED ASSAY FOR UNBOUND BILIRUBIN Non-Final OA Baebies, Inc.
17896790 SYSTEMS AND METHODS FOR FLUID SAMPLE COLLECTION AND TESTING USING A SWAB ASSEMBLY WITH INTEGRAL LATERAL FLOW TEST STRIPS Final Rejection Marshall Venture Partners LLC
18001755 BIOPSY CONTAINER ASSEMBLY Non-Final OA Stefano SANTONI
18059476 Gradient Structures Interfacing Microfluidics and Nanofluidics, Methods for Fabrication and Uses Thereof Non-Final OA Princeton University
17922399 SAMPLE COLLECTION AND DISPOSAL SWAB Non-Final OA Abbott Rapid Diagnostics International Unlimited Company
17902188 INTERMEDIATE STORAGE DOSING UNIT AND SYSTEM AND METHOD FOR TAKING SAMPLES OF A FLUID Final Rejection Deutsches GeoForschungsZentrum-GFZ
17796255 PIPETTING DEVICE AND A METHOD OF PROCESSING A FLUID SAMPLE Final Rejection Hombrechtikon Systems Engineering AG
17789441 DETECTION RESULT READING DEVICE Non-Final OA JIANGSU BIOPERFECTUS TECHNOLOGIES CO., LTD.
16875583 SCREENING DEVICE FOR ANALYSIS OF BODILY FLUIDS Non-Final OA Premier Biotech, LLC

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