Prosecution Insights
Last updated: October 26, 2026

Surafel Yilmakassaye, USPTO Patent Examiner

Listed by the USPTO as YILMAKASSAYE, SURAFEL

Tech Center 2800 • Art Units: 2639 2899

This examiner grants 57% of resolved cases

Analysis

YILMAKASSAYE, SURAFEL is assigned to tech center 2800 and art unit 2639. His profile covers 47 resolved cases, with an allowance rate of 57.4% and a median of 945 days to allowance. Interviews show a 37.1% lift, indicating a positive association with allowance outcomes.

The listed companies are Sony Group, Canon, and Samsung Electronics. The listed firms are CHIP LAW GROUP, BIRCH STEWART KOLASCH & BIRCH, LLP, and Fox Rothschild LLP. The modest case volume calls for caution, but interview preparation may be useful when addressing substantive objections.

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

Performance Statistics

57.4%
Allow Rate
-10.6% vs TC avg
79
Total Applications
+37.1%
Interview Lift
945
Avg Prosecution Days
Based on 47 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
32.4%
§102 Novelty
61.0%
§103 Obviousness
5.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19054903 CONTROL DEVICE, IMAGING SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM Non-Final OA FUJIFILM Corporation
18586581 SHAKE CORRECTION DEVICE AND IMAGING APPARATUS Non-Final OA FUJIFILM Corporation
18925220 IMAGE SENSOR AND DRIVING METHOD THEREOF Final Rejection Samsung Electronics Co., Ltd.
18668720 Light Source Module with Adaptive Illumination Non-Final OA Apple Inc.
18393276 COMMUNICATION CONTROL APPARATUS, COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND STORAGE MEDIUM Final Rejection CANON KABUSHIKI KAISHA
18179625 IMAGE CAPTURING APPARATUS, METHOD OF CONTROLLING IMAGE CAPTURING APPARATUS, AND STORAGE MEDIUM Final Rejection CANON KABUSHIKI KAISHA
18172725 IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD Final Rejection CANON KABUSHIKI KAISHA
18998695 IMAGING DEVICE, IMAGING METHOD, PROGRAM, AND IMAGE PROCESSING METHOD AND PROGRAM Final Rejection Sony Group Corporation
18839683 IMAGING DEVICE, IMAGING CONTROL METHOD, AND PROGRAM Non-Final OA Sony Group Corporation
18842207 SOLID-STATE IMAGING ELEMENT, IMAGING DEVICE, AND METHOD FOR CONTROLLING SOLID-STATE IMAGING ELEMENT Final Rejection SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18251310 IMAGING DEVICE AND IMAGING METHOD Final Rejection SONY SEMICONDUCTOR SOLUTIONS CORPORATION
19053024 MULTI-RESOLUTION WARPING Non-Final OA QUALCOMM Incorporated
18563660 IMAGING ELEMENT AND IMAGING DEVICE Final Rejection NIKON CORPORATION
18322264 AUTONOMOUS ROTATING SENSOR DEVICE AND CORRESPONDING DATA PROCESSING OPTIMIZATION METHOD Final Rejection LG INNOTEK CO., LTD.

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Frequently Asked Questions

What is examiner Surafel Yilmakassaye's allowance rate?

57.4% of resolved applications examined by Surafel Yilmakassaye were allowed (47 resolved cases), compared with 88.6% across Art Unit 2639 over the last five years.

Does an interview help with examiner Surafel Yilmakassaye?

This examiner's interview lift is +37.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Surafel Yilmakassaye take to allow a patent?

Applications allowed by Surafel Yilmakassaye took 945 days on average from filing to allowance.

Which art unit does examiner Surafel Yilmakassaye work in?

Surafel Yilmakassaye examines applications in Art Unit 2639 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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