Prosecution Insights
Last updated: October 01, 2026

Examiner: CHUNG, DAVID Y

Tech Center 3600 • Art Units: 1741 2871 2872 3612

This examiner grants 70% of resolved cases

Analysis

David Y. Chung serves in Art Unit 1741 of Tech Center 3600, where the examiner has 727 resolved cases. The allowance rate is 70.4 percent. This metric indicates the proportion of applications that result in a patent grant. The median days to allowance is 1049, representing the duration of the prosecution period.

The interview lift is 7.4 percent. This figure shows the increase in the allowance rate when an interview is conducted. Practitioners can use this 7.4 percent lift to assess the potential impact of oral advocacy. The 727 cases provide a substantial foundation for these observations in Art Unit 1741.

The 1049 median days to allowance serves as a benchmark for applicants in Tech Center 3600. With an allowance rate of 70.4 percent, the majority of applications reach a grant. These data points offer a comprehensive view of the examiner's historical performance. The volume of resolved cases supports the reliability of these metrics.

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

Performance Statistics

70.4%
Allow Rate
+18.4% vs TC avg
744
Total Applications
+7.4%
Interview Lift
1049
Avg Prosecution Days
Based on 727 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
27.3%
§102 Novelty
66.0%
§103 Obviousness
3.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18999004 VEHICLE MIRROR DEVICE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18953133 DISPLAY APPARATUS Non-Final OA BOE TECHNOLOGY GROUP CO., LTD.
18706196 ARRAY SUBSTRATE AND DISPLAY APPARATUS Non-Final OA BOE TECHNOLOGY GROUP CO., LTD.
18294344 LIGHT ADJUSTMENT DEVICE AND VEHICLE Final Rejection BOE TECHNOLOGY GROUP CO., LTD.
18283823 Array Substrate, Liquid Crystal Display Panel and Display Apparatus Non-Final OA BOE Technology Group Co., Ltd.
18607430 DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA Samsung Display Co., Ltd.
18921862 POLARIZING PLATE, APPARATUS, HEAD-MOUNTED DISPLAY, ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE, AND IMAGING SYSTEM Non-Final OA FUJIFILM Corporation
18890877 FORMING METHOD, OPTICAL FILM, CHOLESTERIC LIQUID CRYSTAL LAYER, OPTICAL LAMINATE, AND PRODUCTION METHOD OF CURVED-SHAPED OPTICALLY FUNCTIONAL LAYER Non-Final OA FUJIFILM Corporation
18852132 Liquid Crystal Cell and Optical Device Final Rejection LG Chem, Ltd.
19081002 INTELLIGENT REFLECTING SURFACE HAVING INTEGRATED DISPLAY PART Non-Final OA Japan Display Inc.
19023036 DYNAMIC OPACITY VARIATION FOR VEHICLE ROOF GLASS SYSTEM Non-Final OA Rivian IP Holdings, LLC
18708478 HARD COAT FILM FOR PROJECTION SCREEN AND PROJECTION SCREEN Non-Final OA LINTEC CORPORATION
18826044 HIGH-CONTRAST LASER-ILLUMINATED LIQUID CRYSTAL ON SILICON DISPLAY Non-Final OA Meta Platforms Technologies, LLC
18921716 REFLECTION MODULE AND CAMERA MODULE INCLUDING THE SAME Non-Final OA Samsung Electro-Mechanics Co., Ltd.
18898986 ELECTRIC CONTROL GLASS DEVICE AND VEHICLE Non-Final OA HON HAI PRECISION INDUSTRY CO., LTD.
18921301 Display Device Having a Narrow Bezel Design Non-Final OA Dell Products L.P.
18864822 ANTIVIRAL OPTICAL FILM, IMAGE DISPLAY PANEL, AND IMAGE DISPLAY DEVICE Non-Final OA DAI NIPPON PRINTING CO., LTD.
18845498 DISPLAY SYSTEM, DISPLAY METHOD, DISPLAY BODY, AND METHOD FOR MANUFACTURING DISPLAY BODY Non-Final OA NITTO DENKO CORPORATION
18966876 MIRROR AND MIRROR SUBSTRATE WITH HIGH ASPECT RATIO, AND METHOD AND MEANS FOR PRODUCING SUCH A MIRROR SUBSTRATE Non-Final OA SCHOTT AG

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