Prosecution Insights
Last updated: October 02, 2026

Examiner: TSUI, YUNG-SHENG M

Tech Center 1700 • Art Units: 1675 1684 1742 1743

This examiner grants 66% of resolved cases

Analysis

Yung-Sheng M Tsui has handled 550 resolved cases in Art Unit 1675. The examiner's allowance rate is 66.4 percent. The data shows an interview lift of 6.6 percent, indicating a slight improvement in allowance probability when an interview is conducted. This 6.6 percent lift suggests that while written prosecution is often sufficient, verbal communication can provide an additional advantage. Practitioners should consider the 66.4 percent allowance rate as a moderate baseline for success in Tech Center 1700.

The median days to allowance is 1040. This timeline and the 66.4 percent allowance rate are key metrics for practitioners to use when planning their strategy. The 1040-day median helps in managing client expectations regarding the duration of the process. With 550 resolved cases, the examiner has a consistent history of dispositions. While the 6.6 percent interview lift is not as high as some other examiners, it still represents a useful tactical option. Overall, the data provides a clear picture of the prosecution landscape.

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

Performance Statistics

66.4%
Allow Rate
+1.4% vs TC avg
575
Total Applications
+6.6%
Interview Lift
1040
Avg Prosecution Days
Based on 550 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
29.3%
§102 Novelty
38.0%
§103 Obviousness
22.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18646871 METHOD FOR MANUFACTURING THREE-DIMENSIONAL OBJECT Final Rejection SEIKO EPSON CORPORATION
18305524 INFORMATION PROCESSING APPARATUS AND THREE-DIMENSIONAL SHAPING APPARATUS Final Rejection SEIKO EPSON CORPORATION
18777988 METHOD AND DEVICE FOR PRODUCING A PARTICLE FOAM PART AND A METHOD FOR CALIBRATING THE PRODUCTION PROCESS Final Rejection adidas AG
18628080 METHODS, SYSTEMS, AND KITS FOR DUAL INDEXING NUCLEIC ACIDS Non-Final OA 10x Genomics, Inc.
18773227 COUPLING OF PRODUCTION MACHINE AND STRETCH BLOW MOLDING MACHINE VIA AIR TRANSPORT Final Rejection Krones AG
18593465 POWDER CONTROL FOR ADDITIVE MANUFACTURING SYSTEMS Non-Final OA Rolls-Royce plc
17980582 CONTROLLED LOCAL MODIFICATION OF VOLUMETRIC PHYSICAL PROPERTIES Non-Final OA DENTSPLY SIRONA Inc.
18862392 NEAR-FIELD MICROWAVE 3D PRINTING OF FUNCTIONAL DEVICES Final Rejection National University of Singapore
18558035 METHODS FOR MAKING LIBRARIES FOR NUCLEIC ACID SEQUENCING Final Rejection BECTON, DICKINSON AND COMPANY
18409612 METHODS AND COMPOSITIONS FOR MUTAGENESIS SCREENING IN MAMMALIAN CELLS Non-Final OA THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
18701094 PROTEINACEOUS MOLECULES AND USES THEREFOR Non-Final OA The University of Tokyo
18757330 Systems for Printing Three-Dimensional Objects Non-Final OA Relativity Space, Inc.
18664102 DIGITAL MICROFLUIDIC SYSTEM FOR SINGLE-CELL ISOLATION AND CHARACTERIZATION OF ANALYTES Non-Final OA Illumina, Inc.
18680611 Methods of Detecting Bladder Cancer Non-Final OA Cepheid
18557184 HIGH COMPLEXITY MICROCOMPARTMENT-BASED INTERACTION SCREENING Non-Final OA European Molecular Biology Laboratory

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