Search

Charles S. Chang

Examiner (ID: 4092, Phone: (571)270-5024 , Office: P/2871 )

Most Active Art Unit
2871
Art Unit(s)
2881, 2871, 2883
Total Applications
1232
Issued Applications
938
Pending Applications
67
Abandoned Applications
244

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19848341 [patent_doc_number] => 20250093692 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/962291 [patent_app_country] => US [patent_app_date] => 2024-11-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11149 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 240 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18962291 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/962291
DISPLAY DEVICE Nov 26, 2024 Pending
Array ( [id] => 20017484 [patent_doc_number] => 20250155706 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => Remote Phosphor To Improve Zone Uniformity In Local Dimming HUD [patent_app_type] => utility [patent_app_number] => 18/946007 [patent_app_country] => US [patent_app_date] => 2024-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 0 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 87 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18946007 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/946007
Remote Phosphor To Improve Zone Uniformity In Local Dimming HUD Nov 12, 2024 Pending
Array ( [id] => 19790157 [patent_doc_number] => 20250063836 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-20 [patent_title] => ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/938763 [patent_app_country] => US [patent_app_date] => 2024-11-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6187 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => 0 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18938763 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/938763
ELECTRONIC DEVICE Nov 5, 2024 Pending
Array ( [id] => 20026538 [patent_doc_number] => 20250164760 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => ZOOM LENS AND IMAGE PICKUP APPARATUS [patent_app_type] => utility [patent_app_number] => 18/928515 [patent_app_country] => US [patent_app_date] => 2024-10-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4809 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18928515 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/928515
ZOOM LENS AND IMAGE PICKUP APPARATUS Oct 27, 2024 Pending
Array ( [id] => 19848283 [patent_doc_number] => 20250093634 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-20 [patent_title] => IMAGING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/884721 [patent_app_country] => US [patent_app_date] => 2024-09-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4513 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18884721 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/884721
IMAGING APPARATUS Sep 12, 2024 Pending
Array ( [id] => 19660050 [patent_doc_number] => 20240427115 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-26 [patent_title] => OPTICAL MEMBER AND OPTICAL DEVICE [patent_app_type] => utility [patent_app_number] => 18/824541 [patent_app_country] => US [patent_app_date] => 2024-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8223 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18824541 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/824541
OPTICAL MEMBER AND OPTICAL DEVICE Sep 3, 2024 Pending
Array ( [id] => 19632653 [patent_doc_number] => 20240411102 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-12 [patent_title] => OPTICAL DRIVING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/810477 [patent_app_country] => US [patent_app_date] => 2024-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13987 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18810477 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/810477
OPTICAL DRIVING APPARATUS Aug 19, 2024 Pending
Array ( [id] => 19616876 [patent_doc_number] => 20240402556 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-05 [patent_title] => DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/806908 [patent_app_country] => US [patent_app_date] => 2024-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 26748 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18806908 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/806908
Display device Aug 15, 2024 Issued
Array ( [id] => 19602762 [patent_doc_number] => 20240393642 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-28 [patent_title] => DISPLAY APPARATUS AND BACKLIGHT UNIT [patent_app_type] => utility [patent_app_number] => 18/797113 [patent_app_country] => US [patent_app_date] => 2024-08-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12120 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 79 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18797113 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/797113
DISPLAY APPARATUS AND BACKLIGHT UNIT Aug 6, 2024 Pending
Array ( [id] => 19739544 [patent_doc_number] => 12216372 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Liquid crystal display device [patent_app_type] => utility [patent_app_number] => 18/791701 [patent_app_country] => US [patent_app_date] => 2024-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 112 [patent_figures_cnt] => 142 [patent_no_of_words] => 37685 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18791701 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/791701
Liquid crystal display device Jul 31, 2024 Issued
Array ( [id] => 19747333 [patent_doc_number] => 20250035898 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => ZOOM LENS AND IMAGING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/781991 [patent_app_country] => US [patent_app_date] => 2024-07-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 35844 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 226 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18781991 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/781991
ZOOM LENS AND IMAGING APPARATUS Jul 22, 2024 Pending
Array ( [id] => 19558107 [patent_doc_number] => 20240369899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => WAVELENGTH SELECTIVE SWITCH [patent_app_type] => utility [patent_app_number] => 18/774068 [patent_app_country] => US [patent_app_date] => 2024-07-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5443 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18774068 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/774068
WAVELENGTH SELECTIVE SWITCH Jul 15, 2024 Pending
Array ( [id] => 19818416 [patent_doc_number] => 20250076623 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-06 [patent_title] => ZOOM LENS AND IMAGING APPARATUS [patent_app_type] => utility [patent_app_number] => 18/771541 [patent_app_country] => US [patent_app_date] => 2024-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15944 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 413 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18771541 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/771541
ZOOM LENS AND IMAGING APPARATUS Jul 11, 2024 Pending
Array ( [id] => 20467865 [patent_doc_number] => 12523902 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Optically addressable light valves for high power operation [patent_app_type] => utility [patent_app_number] => 18/772033 [patent_app_country] => US [patent_app_date] => 2024-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 16149 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18772033 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/772033
Optically addressable light valves for high power operation Jul 11, 2024 Issued
Array ( [id] => 19970933 [patent_doc_number] => 12339539 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-06-24 [patent_title] => Display module and display device [patent_app_type] => utility [patent_app_number] => 18/768555 [patent_app_country] => US [patent_app_date] => 2024-07-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 19 [patent_no_of_words] => 9560 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 234 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18768555 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/768555
Display module and display device Jul 9, 2024 Issued
Array ( [id] => 20202714 [patent_doc_number] => 12405492 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-02 [patent_title] => Connecting display screen to device body [patent_app_type] => utility [patent_app_number] => 18/765807 [patent_app_country] => US [patent_app_date] => 2024-07-08 [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] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18765807 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765807
Connecting display screen to device body Jul 7, 2024 Issued
Array ( [id] => 19694549 [patent_doc_number] => 20250013094 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => DEVICE FOR IMAGING ELECTRICAL ACTIVITY OF A SAMPLE, IMAGING SYSTEM, METHOD FOR ANALYSING A SAMPLE AND MANUFACTURING METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 18/765874 [patent_app_country] => US [patent_app_date] => 2024-07-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6853 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 96 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18765874 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/765874
Device for imaging electrical activity of a sample, imaging system, method for analysing a sample and manufacturing method therefor Jul 7, 2024 Issued
Array ( [id] => 19498859 [patent_doc_number] => 20240337877 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-10 [patent_title] => LIQUID CRYSTAL DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 18/750016 [patent_app_country] => US [patent_app_date] => 2024-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 95275 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -2 [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] => 18750016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/750016
Liquid crystal display device Jun 20, 2024 Issued
Array ( [id] => 19718658 [patent_doc_number] => 12204193 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-01-21 [patent_title] => Liquid crystal display device [patent_app_type] => utility [patent_app_number] => 18/748023 [patent_app_country] => US [patent_app_date] => 2024-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 49 [patent_figures_cnt] => 49 [patent_no_of_words] => 23691 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18748023 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/748023
Liquid crystal display device Jun 18, 2024 Issued
Array ( [id] => 19669023 [patent_doc_number] => 12181767 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-31 [patent_title] => Five-particle electrophoretic medium with improved black optical state [patent_app_type] => utility [patent_app_number] => 18/744857 [patent_app_country] => US [patent_app_date] => 2024-06-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 15 [patent_figures_cnt] => 15 [patent_no_of_words] => 16100 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18744857 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/744857
Five-particle electrophoretic medium with improved black optical state Jun 16, 2024 Issued
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