Prosecution Insights
Last updated: October 02, 2026

Examiner: EYASSU, MARRIT

Tech Center 3700 • Art Units: 2855 2856 2861 3732

This examiner grants 74% of resolved cases

Analysis

Marrit Eyassu examines applications in Tech Center 3700 and Art Unit 2855, with 576 resolved cases. The examiner maintains an allowance rate of 73.8 percent. This 73.8 percent rate is higher than the 15.0 percent interview lift. This suggests a consistent path to grant for applications within this technical field. Practitioners can use the 576 resolved cases to predict a positive outcome.

The data indicates an interview lift of 15.0 percent. While the 73.8 percent allowance rate is the baseline, engaging in an interview provides an additional boost to the probability of success. This 15.0 percent lift can be a factor in resolving rejections across the 576 resolved cases. Direct communication remains a valuable tool in Art Unit 2855.

The median days to allowance is 1052. For the resolved cases, this timeline represents the duration for patent prosecution. Practitioners can use the 1052 day figure and the 73.8 percent allowance rate to set expectations for clients. The 1052 day median reflects an efficient path to grant in Tech Center 3700.

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

Performance Statistics

73.8%
Allow Rate
+3.8% vs TC avg
593
Total Applications
+15.0%
Interview Lift
1052
Avg Prosecution Days
Based on 576 resolved cases, 2023–2026

Rejection Statute Breakdown

2.6%
§101 Eligibility
7.3%
§102 Novelty
60.9%
§103 Obviousness
19.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18885072 LIQUID PROCESSING APPARATUS AND LIQUID PROCESSING SYSTEM INCLUDING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18853691 Multi-Use Sensor Holder Non-Final OA Merck Patent GmbH
18750445 Vibrational Measurement Assembly for Determining Multiphase Fluid Properties Non-Final OA Saudi Arabian Oil Company
18404722 3D PRINTED SIGHT-GLASS FOR CHEMICAL DOSING APPLICATION Non-Final OA SAUDI ARABIAN OIL COMPANY
18853920 AUTOMATIC ANALYSIS SYSTEM AND MOBILE TERMINAL Non-Final OA Hitachi High-Tech Corporation
18727568 GAS CHROMATOGRAPH ANALYSIS METHOD AND GAS CHROMATOGRAPH ANALYSIS PROGRAM Non-Final OA SHIMADZU CORPORATION
18876934 METHOD OF MEASURING FEATURE WITH PROBE MICROSCOPE Non-Final OA INFINITESIMA LIMITED
18682935 IMPLANTABLE WIRELESS SENSOR APPARATUS AND ULTRASONIC ACTUATOR THEREOF Final Rejection KOC UNIVERSITESI
17908160 PROBE AND METHOD FOR MONITORING FRESH CONCRETE USING AN ELECTROMECHANICAL ACTUATOR Final Rejection COMMAND ALKON INCORPORATED

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