Prosecution Insights
Last updated: October 01, 2026

Examiner: SUL, STEPHEN SANGJIN

Tech Center 2800 • Art Units: 2835 2838 2841

This examiner grants 80% of resolved cases

Analysis

Stephen Sangjin Sul examines cases in Art Unit 2835 of Tech Center 2800. A total of 513 resolved cases are included in the data for this profile. The 80.3 percent allowance rate shows the portion of resolved applications that result in a grant. The 26.3 percent lift indicates the increase in the probability of a grant following an interview. This lift is a comparison to the baseline allowance rate of 80.3 percent. Practitioners can use the 26.3 percent figure to evaluate the impact of direct communication.

The median time to allowance is 809 days. This 809-day timeframe measures the span from application to patent issuance. Art Unit 2835 is the group where these 513 resolved cases were processed. Tech Center 2800 provides the broader organizational context for the examiner's work. Practitioners can use these metrics to set expectations for the length of the prosecution cycle. The data provides a basis for evaluating the impact of interviews during the patent application process.

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

Performance Statistics

80.4%
Allow Rate
+12.4% vs TC avg
537
Total Applications
+26.1%
Interview Lift
809
Avg Prosecution Days
Based on 514 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
19.2%
§102 Novelty
62.1%
§103 Obviousness
13.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18956878 FRAME STRUCTURE AND ELECTRONIC DEVICE INCLUDING SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18692127 BREAKER DEVICE Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18886537 ALUMINUM ALLOY MINIATURE CARTRIDGE FUSES Final Rejection Eaton Intelligent Power Limited
18956415 TRANSISTOR UNIT FOR A POWER CONVERTER, POWER CONVERTER AND METHOD FOR MANUFACTURING A POWER CONVERTER Non-Final OA ZF Friedrichshafen AG
18728456 THERMAL CONTROL DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE, AND ASSOCIATED THERMAL CONTROL UNIT Final Rejection VALEO SYSTEMES THERMIQUES
18403183 DEVICE INCLUDING ACTIVE AIR-MOVING DEVICE WITH POP-OUT MODE FOR IMPROVED COOLING AND RELATED METHODS Non-Final OA QUALCOMM Incorporated
18846280 ELECTRIC CIRCUIT BREAKER DEVICE Non-Final OA Daicel Corporation
18840920 ELECTRIC CIRCUIT SWITCHING DEVICE Non-Final OA Daicel Corporation
18839729 ELECTRIC CIRCUIT SWITCHING DEVICE Non-Final OA Daicel Corporation
17699513 FAN ON PRINTED CIRCUIT BOARD Final Rejection Intel Corporation
18819754 PRINTED CIRCUIT BOARD MODULE AND ELECTRONIC DEVICE Non-Final OA LG INNOTEK CO., LTD.
18646921 EDGE DATA CENTER WITH INTEGRATED GEOTHERMAL COOLING Final Rejection INTERNATIONAL BUSINESS MACHINES CORPORATION
17461235 METHODS AND APPARATUS TO THERMALLY ACTUATE MICROELECTROMECHANICAL STRUCTURES DEVICES Final Rejection Texas Instruments Incorporated
18955360 SYSTEM FOR COOLING IN A HEADSET DISPLAY Non-Final OA Meta Platforms Technologies, LLC
18900764 INFORMATION HANDLING SYSTEM WITH HEAT PIPE EXTENDER FOR A LIQUID COOLING PLATE Non-Final OA DELL PRODUCTS L.P.
18891828 ELECTRONIC EQUIPMENT CHASSIS WITH HYBRID COOLING COMPARTMENTS Non-Final OA Dell Products L.P.
18853655 PROTECTIVE ELEMENT Non-Final OA DEXERIALS CORPORATION
18688017 PROTECTIVE ELEMENT Non-Final OA DEXERIALS CORPORATION
18798127 THERMAL CONDUCTIVE STRUCTURE AND PHOTOELECTRIC CONVERSION MODULE Non-Final OA Lumentum Operations LLC

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