Prosecution Insights
Last updated: October 26, 2026

Calvin Y Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, CALVIN Y

Tech Center 4100 • Art Units: 2812 4127

This examiner grants 82% of resolved cases

Analysis

CHOI, CALVIN Y works in Tech Center 4100 and Art Unit 2812. The profile reports 869 resolved cases, with an 81.8% allowance rate and a median of 816 days to allowance. Interviews show a 17.6% lift, supporting their inclusion in prosecution planning.

Samsung Electronics Co., Ltd., X Display Company Technology Limited, and LG Display Co., Ltd. are the listed leading companies. JCIPRNET, SCHWEGMAN LUNDBERG & WOESSNER, P.A., and Bridgeway IP Law Group, PLLC are the listed leading firms. The reported timing and interview measures give practitioners two distinct factors for managing applications.

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

Performance Statistics

81.8%
Allow Rate
+21.8% vs TC avg
891
Total Applications
+17.6%
Interview Lift
816
Avg Prosecution Days
Based on 869 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
21.9%
§102 Novelty
68.1%
§103 Obviousness
5.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18651993 IMAGE SENSOR AND METHOD OF MANUFACTURING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18601447 SEMICONDUCTOR MEMORY DEVICE Non-Final OA Samsung Electronics Co., Ltd.
18545054 DISPLAY DEVICE AND DISPLAY PANEL Final Rejection LG Display Co., Ltd.
18583514 DISPLAY DEVICE Non-Final OA Samsung Display Co., Ltd.
18455197 TRANSISTOR HAVING HIGH ELECTRON MOBILITY (HEMT), TRANSISTOR ASSEMBLY, METHOD FOR CONTROLLING AN HEMT, AND METHOD FOR PRODUCING AN HEMT Final Rejection Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
18610288 SEMICONDUCTOR DEVICE Non-Final OA ROHM CO., LTD.
18426140 SEMICONDUCTOR DEVICE, SEMICONDUCTOR PACKAGE AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.
18848913 ADHESIVE FILM FOR SEMICONDUCTORS, INTEGRATED DICING/DIE BONDING FILM AND METHOD FOR PRODUCING SEMICONDUCTOR DEVICE Non-Final OA Resonac Corporation

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Frequently Asked Questions

What is examiner Calvin Y Choi's allowance rate?

81.8% of resolved applications examined by Calvin Y Choi were allowed (869 resolved cases), compared with 82.1% across Art Unit 2812 over the last five years.

Does an interview help with examiner Calvin Y Choi?

This examiner's interview lift is +17.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Calvin Y Choi take to allow a patent?

Applications allowed by Calvin Y Choi took 816 days on average from filing to allowance.

Which art unit does examiner Calvin Y Choi work in?

Calvin Y Choi examines applications in Art Unit 2812 in Tech Center 4100.

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