Prosecution Insights
Last updated: October 01, 2026

Examiner: KASS, BENJAMIN JOSEPH

Tech Center 1700 • Art Units: 1632 1656 1682 1737 1758 1796 1797 1798 1799

This examiner grants 33% of resolved cases

Analysis

Examiner BENJAMIN JOSEPH KASS is assigned to Tech Center 1700 and Art Unit 1632. The examiner has 43 resolved cases, which provides a solid statistical basis for understanding prosecution trends. This 43 case volume is sufficient to identify consistent patterns in allowance rates and timelines.

The allowance rate is 32.6 percent. While this 32.6 percent rate indicates a rigorous examination environment, the interview lift is 58.9 percent. This 58.9 percent lift is very high, suggesting that interviews are a highly effective tool for improving the chances of a grant compared to the 32.6 percent baseline. Practitioners in Art Unit 1632 should prioritize interviews to overcome the challenges reflected in the overall allowance rate.

The median days to allowance is 1395. This 1395 day timeframe is the median duration for successful applications to reach issuance. The 32.6 percent allowance rate and the 1395 day median highlight the importance of a strategic approach in Tech Center 1700. The 58.9 percent interview lift offers a clear and effective path for applicants to improve their results.

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

Performance Statistics

32.6%
Allow Rate
-32.4% vs TC avg
104
Total Applications
+58.9%
Interview Lift
1395
Avg Prosecution Days
Based on 43 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
18.7%
§102 Novelty
51.5%
§103 Obviousness
27.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17780194 MICROFLUIDIC CHIP AND MICROFLUIDIC DEVICE Final Rejection BOE TECHNOLOGY GROUP CO., LTD.
17524840 Device, System and Method for Fluid Delivery for Sequencing Non-Final OA LIFE TECHNOLOGIES CORPORATION
18070887 FLOW CELLS AND METHODS OF USE THEREOF Non-Final OA 10x Genomics, Inc.
17756254 APPARATUS, SYSTEMS, AND METHODS OF TRANSFERRING LIQUIDS CONTAINING AGGREGATES Final Rejection Siemens Healthcare Diagnostics Inc.
18564531 FLUORESCENCE DETECTION VIA OUTCOUPLERS Final Rejection Hewlett-Packard Development Company, L.P.
18016860 IDENTIFYING TARGET NUCLEIC ACIDS USING IMMOBILIZED NUCLEASE Non-Final OA Hewlett-Packard Development Company, L.P.
18370181 COMBINABLE NUCLEIC ACID PRE-PROCESSING APPARATUS Non-Final OA Delta Electronics, Inc.
17509229 DEVICES AND SYSTEMS FOR DELIVERY OF MATERIALS TO CELLS Non-Final OA Massachusetts Institute of Technology
17996602 AUTOMATIC ANALYZER Final Rejection HITACHI HIGH-TECH CORPORATION
17781965 Automatic Analysis Device Final Rejection Hitachi High-Tech Corporation
17768288 AUTOMATIC ANALYZER Final Rejection Hitachi High-Tech Corporation
18536537 BIO-ENHANCED REMEDIATION AND OIL RECOVERY MODEL SYSTEM AND METHODS Non-Final OA REGENTS OF THE UNIVERSITY OF MINNESOTA
17693773 MICROFLUIDIC CARTRIDGES FOR ENHANCED AMPLIFICATION OF POLYNUCLEOTIDE-CONTAINING SAMPLES Final Rejection BECTON, DICKINSON AND COMPANY
17942296 MICROCHANNEL DEVICE Final Rejection Shimadzu Corporation
17576968 Liquid Biological Sample Test Cartridge Non-Final OA Purdue Research Foundation
17622147 Method and Apparatus for Interrogating Biological Systems Final Rejection Arizona Board of Regents on Behalf of the University of Arizona
17590865 DEVICE FOR MOVING PROBES Non-Final OA STRATEC SE
17719014 Vaporizer Device Microfluidic Systems and Apparatuses Non-Final OA JUUL Labs, Inc.
18542447 FLOW CELLS Non-Final OA ILLUMINA, INC.
17790077 FLOW CELL ASSEMBLIES AND RELATED REAGENT SELECTOR VALVES Final Rejection ILLUMINA, INC.
18373019 LIQUID TRANSFER DEVICE AND METHOD, BIOCHEMICAL SUBSTANCE REACTION DEVICE, AND BIOCHEMICAL SUBSTANCE ANALYSIS DEVICE AND METHOD Non-Final OA MGI Tech Co., Ltd.
17766545 FLUID CONTAINER DEVICE COMPRISING A SEPTUM MEMBER, AND METHOD OF DELIVERING FLUID FROM SUCH A DEVICE Final Rejection BIO-RAD EUROPE GMBH
17686900 PACKAGING FOR ASSAYS AND RELATED METHODS Final Rejection Meso Scale Technologies, LLC.
18293283 EXTRACTION OF LIQUID FROM PIERCEABLE LIQUID STORAGE CONTAINER Non-Final OA OSLER DIAGNOSTICS LIMITED
17915996 LIQUID HANDLING DEVICE Non-Final OA Osler Diagnostics Limited
17423202 FLUID HANDLING APPARATUS FOR A BIOPROCESSING SYSTEM Final Rejection GLOBAL LIFE SCIENCES SOLUTIONS USA LLC

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