Prosecution Insights
Last updated: October 01, 2026

Examiner: CHOWDHURY, SULTAN U.

Tech Center 2800 • Art Units: 2422 2835 2878 2882

This examiner grants 90% of resolved cases

Analysis

Sultan U. Chowdhury operates in Art Unit 2422 of Tech Center 2800 and has 1498 resolved cases. The allowance rate is 89.6 percent. This percentage reflects the high frequency of grants within the examiner's portfolio. The median days to allowance is 745, which measures the time from the initial filing to the final issuance.

The interview lift is 6.4 percent. This figure indicates the increase in the probability of success for cases that include an interview. Practitioners can use this 6.4 percent lift to evaluate the impact of oral advocacy. The 1498 cases provide a robust foundation for these observations in Art Unit 2422.

The 745 median days to allowance acts as a guide for prosecution timelines in Tech Center 2800. With an allowance rate of 89.6 percent, the data shows the frequency of successful outcomes. These metrics 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

89.6%
Allow Rate
+21.6% vs TC avg
1,507
Total Applications
+6.4%
Interview Lift
745
Avg Prosecution Days
Based on 1498 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
25.3%
§102 Novelty
50.7%
§103 Obviousness
14.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18951544 Augmented Reality Room Projector Non-Final OA Apple Inc.
18941605 DISPLAY DEVICE Non-Final OA ALPS ALPINE CO., LTD.
18806631 PROJECTION OPTICAL SYSTEM AND PROJECTION TYPE DISPLAY DEVICE Non-Final OA FUJIFILM Corporation
18968401 OPTICAL ARRANGEMENT FOR A DISPLAY Non-Final OA Snap Inc.
18966328 DISPLAY, DISPLAY SYSTEM, IMAGE PROJECTION SYSTEM, AND MOVABLE OBJECT Non-Final OA Panasonic Automotive Systems Co., Ltd.
19036484 PROJECTOR Non-Final OA SEIKO EPSON CORPORATION
19036449 CALIBRATION METHOD, SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM Non-Final OA SEIKO EPSON CORPORATION
19013098 DISPLAY CONTROL METHOD, DISPLAY DEVICE, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING DISPLAY CONTROL PROGRAM Non-Final OA SEIKO EPSON CORPORATION
18806796 PROJECTION METHOD, PROJECTOR, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM Non-Final OA SEIKO EPSON CORPORATION
18606005 LIGHT SOURCE DEVICE AND PROJECTOR Final Rejection SEIKO EPSON CORPORATION
18903454 IMAGE DISPLAY APPARATUS Non-Final OA SONY GROUP CORPORATION
18838060 OPTICAL MEMBER, LIGHT SOURCE DEVICE, AND HEAD-UP DISPLAY Non-Final OA KOITO MANUFACTURING CO., LTD.
18942810 ILLUMINATION SYSTEM AND PROJECTION DEVICE Non-Final OA Coretronic Corporation
18817195 OPTICAL ENGINE MODULE AND PROJECTOR Non-Final OA Coretronic Corporation
18769409 ILLUMINATION SYSTEM AND PROJECTION DEVICE Non-Final OA Coretronic Corporation
18765313 ILLUMINATION SYSTEM AND PROJECTION DEVICE Non-Final OA Coretronic Corporation

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