Search

Daniel D. Chang

Examiner (ID: 461, Phone: (571)272-1801 , Office: P/2844 )

Most Active Art Unit
2844
Art Unit(s)
2845, 2819, 2844, 0
Total Applications
2565
Issued Applications
2341
Pending Applications
103
Abandoned Applications
143

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18244847 [patent_doc_number] => 20230077158 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-09 [patent_title] => OPTICAL ELEMENT AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME [patent_app_type] => utility [patent_app_number] => 17/893313 [patent_app_country] => US [patent_app_date] => 2022-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11323 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17893313 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/893313
Optical element and liquid crystal display device including the same Aug 22, 2022 Issued
Array ( [id] => 19391006 [patent_doc_number] => 20240280876 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-22 [patent_title] => Electronic Ink Screen and Display Apparatus [patent_app_type] => utility [patent_app_number] => 18/569022 [patent_app_country] => US [patent_app_date] => 2022-08-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13359 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18569022 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/569022
Electronic Ink Screen and Display Apparatus Aug 11, 2022 Pending
Array ( [id] => 18194406 [patent_doc_number] => 20230047925 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-02-16 [patent_title] => DISPLAY APPARATUS [patent_app_type] => utility [patent_app_number] => 17/883606 [patent_app_country] => US [patent_app_date] => 2022-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8254 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17883606 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/883606
Display apparatus Aug 8, 2022 Issued
Array ( [id] => 18286741 [patent_doc_number] => 20230102213 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-30 [patent_title] => DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/867887 [patent_app_country] => US [patent_app_date] => 2022-07-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10225 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 35 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17867887 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/867887
Display device Jul 18, 2022 Issued
Array ( [id] => 18150525 [patent_doc_number] => 20230024383 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-26 [patent_title] => LIQUID CRYSTAL DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/852411 [patent_app_country] => US [patent_app_date] => 2022-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23432 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17852411 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/852411
Liquid crystal display device Jun 28, 2022 Issued
Array ( [id] => 18221249 [patent_doc_number] => 20230060243 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-03-02 [patent_title] => OPTICAL IMAGING SYSTEM [patent_app_type] => utility [patent_app_number] => 17/851488 [patent_app_country] => US [patent_app_date] => 2022-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20456 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17851488 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/851488
OPTICAL IMAGING SYSTEM Jun 27, 2022 Pending
Array ( [id] => 20242463 [patent_doc_number] => 12422779 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Optical assembly and method for reducing zero-order light in a holographic display [patent_app_type] => utility [patent_app_number] => 17/850740 [patent_app_country] => US [patent_app_date] => 2022-06-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1170 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 330 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17850740 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/850740
Optical assembly and method for reducing zero-order light in a holographic display Jun 26, 2022 Issued
Array ( [id] => 18872702 [patent_doc_number] => 11860504 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-01-02 [patent_title] => Optical scanning device [patent_app_type] => utility [patent_app_number] => 17/849167 [patent_app_country] => US [patent_app_date] => 2022-06-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 11779 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 216 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17849167 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/849167
Optical scanning device Jun 23, 2022 Issued
Array ( [id] => 17915107 [patent_doc_number] => 20220317503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => PREPARATION METHOD OF DISPLAY MODULE, DISPLAY MODULE, AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 17/842702 [patent_app_country] => US [patent_app_date] => 2022-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3287 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17842702 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/842702
Preparation method of display module, display module, and electronic device Jun 15, 2022 Issued
Array ( [id] => 20373733 [patent_doc_number] => 12481165 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Embedded transmissive diffractive optical elements [patent_app_type] => utility [patent_app_number] => 17/842669 [patent_app_country] => US [patent_app_date] => 2022-06-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 13 [patent_no_of_words] => 3375 [patent_no_of_claims] => 15 [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] => 17842669 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/842669
Embedded transmissive diffractive optical elements Jun 15, 2022 Issued
Array ( [id] => 18079046 [patent_doc_number] => 20220404658 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-22 [patent_title] => LIQUID CRYSTAL DISPLAY APPARATUS [patent_app_type] => utility [patent_app_number] => 17/840190 [patent_app_country] => US [patent_app_date] => 2022-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8808 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 322 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17840190 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/840190
Liquid crystal display apparatus Jun 13, 2022 Issued
Array ( [id] => 18470628 [patent_doc_number] => 20230204914 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => OPTICAL IMAGING LENS [patent_app_type] => utility [patent_app_number] => 17/836223 [patent_app_country] => US [patent_app_date] => 2022-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16218 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 333 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17836223 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/836223
Optical imaging lens Jun 8, 2022 Issued
Array ( [id] => 18111151 [patent_doc_number] => 20230004031 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-01-05 [patent_title] => DISPLAY DEVICE [patent_app_type] => utility [patent_app_number] => 17/833924 [patent_app_country] => US [patent_app_date] => 2022-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12470 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 284 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17833924 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/833924
Display device Jun 6, 2022 Issued
Array ( [id] => 20078910 [patent_doc_number] => 12352973 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Zonal lenses for a head-mounted display (HMD) device [patent_app_type] => utility [patent_app_number] => 17/831066 [patent_app_country] => US [patent_app_date] => 2022-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 4502 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [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] => 17831066 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/831066
Zonal lenses for a head-mounted display (HMD) device Jun 1, 2022 Issued
Array ( [id] => 20506851 [patent_doc_number] => 12541126 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-03 [patent_title] => Display module, spliced screen and display apparatus [patent_app_type] => utility [patent_app_number] => 18/575078 [patent_app_country] => US [patent_app_date] => 2022-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 12 [patent_no_of_words] => 3702 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18575078 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/575078
Display module, spliced screen and display apparatus May 30, 2022 Issued
Array ( [id] => 19346769 [patent_doc_number] => 20240255732 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => LENS MODULE AND DISPLAY DEVICE COMPRISING SAME [patent_app_type] => utility [patent_app_number] => 18/565835 [patent_app_country] => US [patent_app_date] => 2022-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13713 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 123 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18565835 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/565835
LENS MODULE AND DISPLAY DEVICE COMPRISING SAME May 30, 2022 Pending
Array ( [id] => 20415271 [patent_doc_number] => 12498550 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Imaging lens system [patent_app_type] => utility [patent_app_number] => 17/752431 [patent_app_country] => US [patent_app_date] => 2022-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 1536 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 185 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17752431 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/752431
Imaging lens system May 23, 2022 Issued
Array ( [id] => 18037843 [patent_doc_number] => 20220382059 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-01 [patent_title] => COUPLING FEATURE FOR DATA GLASSES FOR COUPLING AMBIENT LIGHT INTO AN AMBIENT LIGHT SENSOR LOCATED INSIDE THE SPECTACLE FRAME [patent_app_type] => utility [patent_app_number] => 17/752632 [patent_app_country] => US [patent_app_date] => 2022-05-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6431 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 82 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17752632 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/752632
COUPLING FEATURE FOR DATA GLASSES FOR COUPLING AMBIENT LIGHT INTO AN AMBIENT LIGHT SENSOR LOCATED INSIDE THE SPECTACLE FRAME May 23, 2022 Pending
Array ( [id] => 19382098 [patent_doc_number] => 20240271968 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => LIGHT RECEIVING ELEMENT, AND ROTATION DETECTOR [patent_app_type] => utility [patent_app_number] => 18/568812 [patent_app_country] => US [patent_app_date] => 2022-05-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6376 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 112 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18568812 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/568812
Light receiving element, and rotation detector May 16, 2022 Issued
Array ( [id] => 19176272 [patent_doc_number] => 20240162246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-16 [patent_title] => ARRAY SUBSTRATE, MANUFACTURING METHOD THEREOF, AND DISPLAY PANEL [patent_app_type] => utility [patent_app_number] => 17/756662 [patent_app_country] => US [patent_app_date] => 2022-05-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8726 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 100 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17756662 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/756662
ARRAY SUBSTRATE, MANUFACTURING METHOD THEREOF, AND DISPLAY PANEL May 12, 2022 Pending
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