Prosecution Insights
Last updated: October 27, 2026

Suberr L Chi, USPTO Patent Examiner

Listed by the USPTO as CHI, SUBERR L

Tech Center 2800 • Art Units: 2800 2817 2818 2829 2893 2898

This examiner grants 85% of resolved cases

Analysis

CHI, SUBERR L works in tech center 2800 and art unit 2800, with 663 resolved cases. The allowance rate is 84.6%, and the median time to allowance is 1017 days. The interview lift is 2.7%, indicating only a small positive association compared with the favorable allowance rate.

The leading companies are Samsung Electronics Co., Ltd., Taiwan Semiconductor Manufacturing Company, Ltd., and United Microelectronics Corp. The leading firms are CHRISTENSEN O'CONNOR JOHNSON KINDNESS PLLC, CROWE & DUNLEVY - ST, and F. CHAU & ASSOCIATES, LLC. Practitioners can prioritize clear written prosecution and use interviews selectively.

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

Performance Statistics

84.6%
Allow Rate
+16.6% vs TC avg
693
Total Applications
+2.7%
Interview Lift
1017
Avg Prosecution Days
Based on 663 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
24.0%
§102 Novelty
44.5%
§103 Obviousness
28.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18637849 MAGNETIC TUNNELING JUNCTION DEVICE AND MEMORY DEVICE INCLUDING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18628099 IMAGE SENSORS AND METHODS OF FABRICATING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18649886 FIELD-EFFECT TRANSISTOR AND METHOD FOR PRODUCING A FIELD-EFFECT TRANSISTOR Non-Final OA Robert Bosch GmbH
18427571 DISPLAY DEVICE Non-Final OA LG Display Co., Ltd.
18732807 DISPLAY DEVICE AND A METHOD FOR MANUFACTURING THE SAME Non-Final OA SAMSUNG DISPLAY CO., LTD.
18577992 Display Substrate, Manufacturing Method therefor, and Display Device Non-Final OA BOE Technology Group Co., Ltd.
17886278 ALTERNATING HIGH K LAYERS ON GLASS PILLARS FOR SUPER CAPACITORS ON GLASS SUBSTRATES Non-Final OA Intel Corporation
17883736 THICK GATE OXIDE TRANSISTOR DEVICE AND METHOD Non-Final OA Micron Technology, Inc.
18618447 OPTICAL PACKAGE WITH ELECTROMAGNETIC SHIELDING Non-Final OA STMicroelectronics International N.V.
18582288 BACK END LINE OF MEMORY DEVICE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18488953 MANUFACTURING METHOD OF LAYOUT STRUCTURE OF STORAGE CELL Non-Final OA TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
18673546 ISOLATION STRUCTURES IN TRANSISTOR DEVICES AND METHODS OF FORMING Non-Final OA Taiwan Semiconductor Manufacturing Co., Ltd.
18519092 SEMICONDUCTOR DEVICE Final Rejection UNITED MICROELECTRONICS CORP.
18502091 MEMORY STRUCTURE AND MANUFACTURING METHOD THEREOF Final Rejection United Microelectronics Corp.

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Frequently Asked Questions

What is examiner Suberr L Chi's allowance rate?

84.6% of resolved applications examined by Suberr L Chi were allowed (663 resolved cases), compared with 69.7% across Art Unit 2800 over the last five years.

Does an interview help with examiner Suberr L Chi?

This examiner's interview lift is +2.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Suberr L Chi take to allow a patent?

Applications allowed by Suberr L Chi took 1,017 days on average from filing to allowance.

Which art unit does examiner Suberr L Chi work in?

Suberr L Chi examines applications in Art Unit 2800 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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