Prosecution Insights
Last updated: October 26, 2026

Stacy Khoo, USPTO Patent Examiner

Listed by the USPTO as KHOO, STACY

Tech Center 2600 • Art Units: 2623 2624 2629 2695

This examiner grants 82% of resolved cases

Analysis

KHOO, STACY is a USPTO patent examiner in tech center 2600 and art unit 2623. The profile covers 627 resolved cases, with an allowance rate of 82.1% and a median of 889 days to allowance. Interview lift is 14.2%, indicating a higher allowance outcome for interview-associated cases than for the corresponding cases without interviews.

The recorded companies are BOE Technology Group Co., Ltd., Samsung Display Co., Ltd., and Huawei Technologies Co., Ltd. The leading firms are Intellectual Valley Law, P.C., Novel Patent Services, and WHDA, LLP. The case volume provides useful historical context for practitioners evaluating prosecution before this examiner. Counsel can consider interviews within the response strategy, while the median timing helps structure scheduling and client communications.

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

Performance Statistics

82.1%
Allow Rate
+20.1% vs TC avg
647
Total Applications
+14.2%
Interview Lift
889
Avg Prosecution Days
Based on 627 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
17.5%
§102 Novelty
52.1%
§103 Obviousness
24.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19290329 SCAN DRIVER Non-Final OA SAMSUNG DISPLAY CO., LTD.
18610056 DISPLAY DEVICE Non-Final OA Samsung Display Co., Ltd.
19323301 DISPLAY PANEL Final Rejection BOE Technology Group Co., Ltd.
19037123 PIXEL DRIVING CIRCUIT, DISPLAY PANEL, METHOD OF DRIVING DISPLAY PANEL Final Rejection BOE Technology Group Co., Ltd.
18848529 Pixel Driving Circuit, Driving Method therefor, and Display Apparatus Non-Final OA BOE Technology Group Co., Ltd.
18839609 DISPLAY SUBSTRATE AND DISPLAY DEVICE Non-Final OA BOE Technology Group Co., Ltd.
18838464 GAMMA TUNING METHOD AND GAMMA TUNING DEVICE FOR DISPLAY DEVICE, AND DISPLAY DEVICE Non-Final OA BOE TECHNOLOGY GROUP CO., LTD.
18710492 INTERFACE DISPLAY METHOD AND APPARATUS Non-Final OA Huawei Technologies Co., Ltd.

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Frequently Asked Questions

What is examiner Stacy Khoo's allowance rate?

82.1% of resolved applications examined by Stacy Khoo were allowed (627 resolved cases), compared with 74.6% across Art Unit 2623 over the last five years.

Does an interview help with examiner Stacy Khoo?

This examiner's interview lift is +14.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Stacy Khoo take to allow a patent?

Applications allowed by Stacy Khoo took 889 days on average from filing to allowance.

Which art unit does examiner Stacy Khoo work in?

Stacy Khoo examines applications in Art Unit 2623 in Tech Center 2600 (Communications).

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