Prosecution Insights
Last updated: October 02, 2026

Examiner: AYALEW, TINSAE B

Tech Center 3700 • Art Units: 1711 1714 1718 1749 3754

This examiner grants 76% of resolved cases

Analysis

Tinsae B. Ayalew is an examiner in Tech Center 3700 and Art Unit 1711. He has managed 619 resolved cases with an allowance rate pct of 75.8%. This 75.8% rate indicates that a majority of the applications in his portfolio result in a grant. The median days to allowance for these cases is 967, which establishes a timeline for practitioners to expect when prosecuting in this art unit. For the 619 resolved cases, this 967-day period represents the median duration from filing to issuance for successful applications.

The data shows an interview lift pct of 9.1%. This 9.1% lift is an increase in the probability of allowance when an interview is conducted compared to the 75.8% baseline allowance rate. This suggests that direct communication with the examiner is a method for resolving outstanding rejections. Practitioners can use the 9.1% lift to evaluate the impact of an interview, as it correlates with a higher success rate than the baseline. The 967-day median suggests that the process in Art Unit 1711 is relatively efficient for the 619 resolved cases.

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

Performance Statistics

75.8%
Allow Rate
+5.8% vs TC avg
645
Total Applications
+9.1%
Interview Lift
967
Avg Prosecution Days
Based on 619 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
16.9%
§102 Novelty
56.3%
§103 Obviousness
24.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18879508 CLOTHING TREATMENT APPARATUS Non-Final OA LG Electronics Inc.
18701391 LAUNDRY TREATING APPARATUS Final Rejection LG ELECTRONICS INC.
18418827 CHEMICAL SUPPLY APPARATUS, SEMICONDUCTOR FABRICATION SYSTEM INCLUDING THE SAME, AND SUBSTRATE PROCESSING METHOD USING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18293502 WIPING SYSTEM AND CONTROL OF CLEANING FLUID INJECTION IN A WIPING SYSTEM Non-Final OA VALEO SYSTEMES D'ESSUYAGE
18647420 TRAY COUPLING MODULE FOR A CLEANING MACHINE Non-Final OA Ecolab USA Inc.
18959723 WET PROCESS SYSTEM AND PROCESS FOR USING THE SAME Final Rejection TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
18813870 HORIZONTAL NON-CONTACT CLEAN STATION FOR CHEMICAN MECHANICAL POLISHING CLEANER Non-Final OA Applied Materials, Inc.
19082876 SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD Non-Final OA Tokyo Electron Limited
18799028 MULTI-STAGE WASHER INCLUDING A WATER TREATMENT SYSTEM Non-Final OA Stolle Machinery Company, LLC
18889420 SUBSTRATE PROCESSING APPARATUS Final Rejection SCREEN HOLDINGS CO., LTD.
18442486 SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD Non-Final OA SEMES CO., LTD.
18510663 SUBSTRATE TREATING APPARATUS AND CLEANING METHOD THEREOF Final Rejection SEMES CO., LTD.
18561531 SEMICONDUCTOR WAFER CLEANING DEVICE, SEMICONDUCTOR WAFER CLEANING METHOD, AND METHOD FOR MANUFACTURING SILICON WAFER Non-Final OA SUMCO Corporation

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