Prosecution Insights
Last updated: October 02, 2026

Examiner: SUN, CAITLYN MINGYUN

Tech Center 3700 • Art Units: 1645 1795 3791

This examiner grants 64% of resolved cases

Analysis

Caitlyn Mingyun Sun serves as a patent examiner in Tech Center 3700, working within Art Unit 1645. The examiner has reached a resolution in 325 cases. The allowance rate for these cases is 63.4 percent. This 63.4 percent rate provides a measure of how often applications are granted. Practitioners can use this data to evaluate the probability of a favorable outcome when an application is assigned to this examiner.

The record shows an interview lift of 11.7 percent. This positive 11.7 percent lift indicates that applications involving an interview are more likely to be allowed than those that are not. This suggests that direct discussion with the examiner is a productive method for resolving issues. Practitioners should consider the 11.7 percent lift when deciding whether to request an interview during prosecution in Tech Center 3700.

The median days to allowance for this examiner is 1105. This 1105 figure represents the middle point of the time required to move from filing to a patent grant. With 325 resolved cases, this median offers a benchmark for the duration of the prosecution process. These figures assist in managing expectations for both the timing and the results of applications in Art Unit 1645.

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

Performance Statistics

63.5%
Allow Rate
-6.5% vs TC avg
392
Total Applications
+11.9%
Interview Lift
1105
Avg Prosecution Days
Based on 326 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
16.6%
§102 Novelty
52.0%
§103 Obviousness
27.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18708750 METHOD FOR EVALUATING THE CORROSION RESISTANCE OF A SURFACE Final Rejection SAFRAN LANDING SYSTEMS
18302588 ELECTROCHEMICAL SENSOR FOR SIMULTANEOUS DETECTION OF DOPAMINE AND SEROTONIN AND MANUFACTURING METHOD THEREOF Final Rejection KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18440379 PYRUVATE SENSOR AND RELATED METHOD Final Rejection ABBOTT DIABETES CARE INC.
18635090 SENSOR UNIT OF A NUCLEIC ACID ANALYSIS SYSTEM Non-Final OA Robert Bosch GmbH
18438235 REGULATION OF A TWO-ELECTRODE ANALYTE SENSOR Non-Final OA Roche Diabetes Care, Inc.
18670230 REGENERATION OF A CHEMICAL SENSOR Final Rejection THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
18499024 NUCLEIC ACID SEQUENCING USING NANOPORES Non-Final OA Western Digital Technologies, Inc.
18675372 ELECTROCHEMICAL OXYGEN SENSOR Final Rejection Maxell, Ltd.
18871231 METHOD FOR CONTINUOUSLY USING SEPARATION MEDIUM Non-Final OA HITACHI HIGH-TECH CORPORATION
18836691 ELECTROPHORESIS DEVICE Final Rejection HITACHI HIGH-TECH CORPORATION
18294267 ELECTROLYTE ANALYZER AND ANALYSIS METHOD Non-Final OA HITACHI HIGH-TECH CORPORATION
18274028 ELECTROPHORETIC MOBILITY SHIFT AS A MOLECULAR BEACON-BASED READOUT FOR MIRNA DETECTION Non-Final OA Beth Israel Deaconess Medical Center
18056693 ELECTROCHEMICAL BIOSENSOR FOR DETECTING TARGET RNA Final Rejection Industry-Academic Cooperation Foundation, Yonsei University
18044458 OXYGEN INSENSITIVE AMPEROMETRIC BIOSENSORS Non-Final OA TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD.
18412083 STRESS-CONTROLLED DEFECT ENGINEERING IN CERIA NANOSTRUCTURES Final Rejection University of Central Florida Research Foundation, Inc.
17320352 HIGH DYNAMIC RANGE FAST CV SENSOR USING WIDE BANDGAP SILICON CARBIDE Final Rejection University of South Florida
18627836 GAS SENSOR Final Rejection Niterra Co., Ltd.
18386798 MULTIFUNCTIONAL SOFT BIOELECTRONICS Non-Final OA BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA
18476812 METAL NANOPARTICLE-MAGNETIC PARTICLE COMPLEX, METHOD OF PREPARING SAME, AND USE THEREOF Final Rejection KOREA ELECTRONICS TECHNOLOGY INSTITUTE
18027438 SOLUTE-PHASE ELECTROCHEMICAL APTAMER SENSORS FOR IMPROVED LONGEVITY AND SENSITIVITY Final Rejection University of Cincinnati
18027394 SOLUTE-PHASE APTAMER SENSING WITH APTAMER ISOLATION Final Rejection University Of Cincinnati
18570153 MATERIAL DEPOSITION ONTO AND RECOVERY FROM SURFACES VIA CONTACTLESS, REVERSIBLE DROPLET WETTING/DE-WETTING BY DIELECTRIC CHARGE INJECTION Non-Final OA THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
17276760 OXIDATION-REDUCTION POLYMER INCLUDING TRANSITION METAL COMPLEX, AND ELECTROCHEMICAL BIOSENSOR USING SAME Final Rejection I-SENS, INC.
18246009 DEVICES AND METHODS FOR URINE SAMPLE ANALYSIS Non-Final OA Roche Sequencing Solutions, Inc.
18879269 REGULATING THE ELECTROCHEMICAL REDOX BEHAVIOR OF SEMICONDUCTING POLYMERS ON SOFT AND STRETCHABLE SUBSTRATES AND METHODS OF USE Non-Final OA The University of Hong Kong
18914910 TUNABLE ELECTROOSMOTIC FLOW POLYMER COATED CAPILLARY Non-Final OA UNIVERSITY OF NOTRE DAME DU LAC
17178455 SUPER SENSITIVE SENSOR FOR THE DETECTION OF HYDROXYL FREE RADICALS WITH SCAVENGING PROPERTIES Non-Final OA The University of Toledo
18383357 SAMPLE ANALYSIS METHOD, CAPILLARY ELECTROPHORESIS SOLUTION, AND SAMPLE ANALYSIS KIT Non-Final OA ARKRAY, Inc.
18302390 ELECTRICAL SIGNAL SENSING COMPOSITION, ELECTRICAL SIGNAL SENSOR AND METHOD OF FORMING THE SAME Final Rejection National Yang Ming Chiao Tung University

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