Prosecution Insights
Last updated: October 02, 2026

Examiner: MEBRAHTU, EPHREM ZERU

Tech Center 2800 • Art Units: 2872

This examiner grants 75% of resolved cases

Analysis

Ephrem Zeru Mebrahtu is a patent examiner in Tech Center 2800, working within Art Unit 2872. The examiner has 510 resolved cases and an allowance rate of 74.7 percent. This 74.7 percent rate reflects the proportion of applications that reach a grant. For the 510 cases handled, this data provides a basis for understanding the probability of success during the examination process. The volume of resolved cases reflects the examiner's experience within Tech Center 2800.

The median days to allowance for this examiner is 1019. This 1019-day timeline represents the duration for an application to move from filing to a grant. Applicants should consider this period when planning their patent strategy and resource allocation. The volume of 510 resolved cases suggests that this duration is a consistent aspect of the examiner's workflow in Art Unit 2872. This median provides a specific metric for evaluating the expected length of prosecution.

The data shows an interview lift of 8.8 percent. This 8.8 percent lift represents the change in the likelihood of allowance when an interview is conducted. It suggests that direct communication is a method for addressing the probability of a grant. For practitioners, utilizing an interview is an option to navigate the prosecution process and achieve a positive outcome. Practitioners can use this lift to evaluate the potential benefits of direct engagement.

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

Performance Statistics

74.7%
Allow Rate
+6.7% vs TC avg
522
Total Applications
+8.8%
Interview Lift
1019
Avg Prosecution Days
Based on 510 resolved cases, 2023–2026

Rejection Statute Breakdown

1.4%
§101 Eligibility
23.0%
§102 Novelty
51.7%
§103 Obviousness
19.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19018647 IMAGING OPTICAL SYSTEM, AND IMAGING DEVICE AND CAMERA SYSTEM PROVIDED WITH SAME Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18925480 LENS BARREL, AND OPTICAL DEVICE Non-Final OA CANON KABUSHIKI KAISHA
18748491 ACCESSORY Non-Final OA NIKON CORPORATION
18979436 OPTICAL ELEMENT DRIVING MECHANISM Non-Final OA Actutek Corporation
18906682 OPTICAL SYSTEM Non-Final OA Actutek Corporation
18870551 OPTICAL SYSTEM AND CAMERA MODULE COMPRISING SAME Non-Final OA LG INNOTEK CO., LTD.
18941687 SPACER AND LENS ASSEMBLY INCLUDING SPACER Non-Final OA Samsung Electro-Mechanics Co., Ltd.
18355819 LENS ASSEMBLY AND LENS MODULE INCLUDING THE SAME Non-Final OA SAMSUNG ELECTRO-MECHANICS CO., LTD.
17369655 LENS ASSEMBLY Non-Final OA SAMSUNG ELECTRO-MECHANICS CO., LTD.
19061047 HEAD-UP DISPLAY DEVICE Non-Final OA Yazaki Corporation
18870782 PROJECTION SYSTEM AND HEAD-MOUNTED DISPLAY Non-Final OA Goertek Optical Technology Co., Ltd.
18870746 PROJECTION LENS AND PROJECTION DEVICE Non-Final OA Goertek Optical Technology Co., Ltd.

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