Search

Sultan U. Chowdhury

Examiner (ID: 13868, Phone: (571)270-3336 , Office: P/2882 )

Most Active Art Unit
2882
Art Unit(s)
2882, 2878
Total Applications
1791
Issued Applications
1586
Pending Applications
80
Abandoned Applications
158

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17751098 [patent_doc_number] => 20220229303 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-07-21 [patent_title] => DISPLAY DEVICE MODULE AND HEAD-MOUNTED DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/716247 [patent_app_country] => US [patent_app_date] => 2022-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15840 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17716247 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/716247
Display device module and head-mounted display device Apr 7, 2022 Issued
Array ( [id] => 19978398 [patent_doc_number] => 12345872 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-01 [patent_title] => Reflective hollow singlet folded optical lens structure [patent_app_type] => utility [patent_app_number] => 17/715683 [patent_app_country] => US [patent_app_date] => 2022-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 3477 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 220 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17715683 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/715683
Reflective hollow singlet folded optical lens structure Apr 6, 2022 Issued
Array ( [id] => 17931390 [patent_doc_number] => 20220326515 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-13 [patent_title] => VEHICLE DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/714122 [patent_app_country] => US [patent_app_date] => 2022-04-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5745 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 338 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17714122 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/714122
Vehicle display device Apr 4, 2022 Issued
Array ( [id] => 18644361 [patent_doc_number] => 11768426 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2023-09-26 [patent_title] => Projection toy [patent_app_type] => utility [patent_app_number] => 17/711140 [patent_app_country] => US [patent_app_date] => 2022-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 2360 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 363 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17711140 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/711140
Projection toy Mar 31, 2022 Issued
Array ( [id] => 18677157 [patent_doc_number] => 20230314797 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => ASSEMBLY FOR AN EYE TRACKING SYSTEM AND A CORRESPONDING HEAD-MOUNTED DEVICE UTILIZING THE SAME [patent_app_type] => utility [patent_app_number] => 17/709462 [patent_app_country] => US [patent_app_date] => 2022-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4937 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17709462 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/709462
Assembly for an eye tracking system and a corresponding head-mounted device utilizing the same Mar 30, 2022 Issued
Array ( [id] => 19200171 [patent_doc_number] => 11997431 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-28 [patent_title] => Illumination device with projector and illumination device [patent_app_type] => utility [patent_app_number] => 17/705707 [patent_app_country] => US [patent_app_date] => 2022-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 7024 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17705707 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/705707
Illumination device with projector and illumination device Mar 27, 2022 Issued
Array ( [id] => 19000467 [patent_doc_number] => 11917340 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-02-27 [patent_title] => Projection device and brightness control method thereof [patent_app_type] => utility [patent_app_number] => 17/703966 [patent_app_country] => US [patent_app_date] => 2022-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 8 [patent_no_of_words] => 5386 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17703966 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/703966
Projection device and brightness control method thereof Mar 23, 2022 Issued
Array ( [id] => 19408441 [patent_doc_number] => 20240291952 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => CALIBRATION METHOD [patent_app_type] => utility [patent_app_number] => 18/569241 [patent_app_country] => US [patent_app_date] => 2022-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2586 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [patent_words_short_claim] => 146 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18569241 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/569241
CALIBRATION METHOD Mar 22, 2022 Pending
Array ( [id] => 20174285 [patent_doc_number] => 12393029 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-19 [patent_title] => Buried diffractive gratings for optical elements of augmented reality and virtual reality head-mounted displays [patent_app_type] => utility [patent_app_number] => 17/702507 [patent_app_country] => US [patent_app_date] => 2022-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 59 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17702507 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/702507
Buried diffractive gratings for optical elements of augmented reality and virtual reality head-mounted displays Mar 22, 2022 Issued
Array ( [id] => 18656996 [patent_doc_number] => 20230302899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => HEAD-UP DISPLAY SYSTEM HAVING A HOLOGRAPHIC PANEL COMPRISING A FIRST LAYER AND A SECOND LAYER [patent_app_type] => utility [patent_app_number] => 17/700916 [patent_app_country] => US [patent_app_date] => 2022-03-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5444 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 196 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17700916 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/700916
Head-up display system having a holographic panel comprising a first layer and a second layer Mar 21, 2022 Issued
Array ( [id] => 17884372 [patent_doc_number] => 20220299849 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => PROJECTION CONTROL APPARATUS, TERMINAL APPARATUS, AND PROJECTION METHOD [patent_app_type] => utility [patent_app_number] => 17/699951 [patent_app_country] => US [patent_app_date] => 2022-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9361 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 78 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17699951 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/699951
Projection control apparatus, terminal apparatus, and projection method Mar 20, 2022 Issued
Array ( [id] => 17884373 [patent_doc_number] => 20220299850 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => LIGHT SOURCE DEVICE AND PROJECTOR [patent_app_type] => utility [patent_app_number] => 17/699445 [patent_app_country] => US [patent_app_date] => 2022-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13211 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17699445 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/699445
Light source device and projector Mar 20, 2022 Issued
Array ( [id] => 17884301 [patent_doc_number] => 20220299778 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-09-22 [patent_title] => WAVEGUIDE SYSTEM FOR NEAR EYE OPTICAL DISPLAYS [patent_app_type] => utility [patent_app_number] => 17/655063 [patent_app_country] => US [patent_app_date] => 2022-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13050 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17655063 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/655063
Waveguide system for near eye optical displays Mar 15, 2022 Issued
Array ( [id] => 18553473 [patent_doc_number] => 20230251485 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-10 [patent_title] => HEAD-UP DISPLAY HAVING A LARGE EXIT PUPIL [patent_app_type] => utility [patent_app_number] => 17/694704 [patent_app_country] => US [patent_app_date] => 2022-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12178 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17694704 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/694704
Head-up display having a large exit pupil Mar 14, 2022 Issued
Array ( [id] => 19143967 [patent_doc_number] => 20240142861 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-02 [patent_title] => PROJECTION SYSTEM AND METHOD FOR ETENDUE UTILIZATION [patent_app_type] => utility [patent_app_number] => 18/548208 [patent_app_country] => US [patent_app_date] => 2022-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8178 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18548208 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/548208
PROJECTION SYSTEM AND METHOD FOR ETENDUE UTILIZATION Mar 9, 2022 Pending
Array ( [id] => 18828603 [patent_doc_number] => 11843902 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-12-12 [patent_title] => Image forming medium changing device, spatial projection apparatus, spatial projection system, and spatial projection method [patent_app_type] => utility [patent_app_number] => 17/691561 [patent_app_country] => US [patent_app_date] => 2022-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 18 [patent_no_of_words] => 10098 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17691561 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/691561
Image forming medium changing device, spatial projection apparatus, spatial projection system, and spatial projection method Mar 9, 2022 Issued
Array ( [id] => 19907306 [patent_doc_number] => 12284328 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Display apparatus, display system, and display adjustment method [patent_app_type] => utility [patent_app_number] => 17/685431 [patent_app_country] => US [patent_app_date] => 2022-03-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 15 [patent_no_of_words] => 7823 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17685431 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/685431
Display apparatus, display system, and display adjustment method Mar 2, 2022 Issued
Array ( [id] => 18429989 [patent_doc_number] => 11675205 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-06-13 [patent_title] => Image display device and virtual image display apparatus [patent_app_type] => utility [patent_app_number] => 17/683685 [patent_app_country] => US [patent_app_date] => 2022-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 14 [patent_no_of_words] => 14221 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 359 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17683685 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/683685
Image display device and virtual image display apparatus Feb 28, 2022 Issued
Array ( [id] => 19591123 [patent_doc_number] => 20240388680 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-21 [patent_title] => PROJECTION APPARATUS [patent_app_type] => utility [patent_app_number] => 17/921392 [patent_app_country] => US [patent_app_date] => 2022-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17921392 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/921392
Projection apparatus Feb 27, 2022 Issued
Array ( [id] => 18598634 [patent_doc_number] => 20230273433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => STEREO ALIGNMENT ASSESSMENT FOR HEAD-MOUNTED DISPLAY [patent_app_type] => utility [patent_app_number] => 17/652901 [patent_app_country] => US [patent_app_date] => 2022-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 207 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17652901 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/652901
Stereo alignment assessment for head-mounted display Feb 27, 2022 Issued
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