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] => 20109710 [patent_doc_number] => 12360424 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-15 [patent_title] => Liquid crystal device, display device, and optical modulation module [patent_app_type] => utility [patent_app_number] => 18/174014 [patent_app_country] => US [patent_app_date] => 2023-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 20 [patent_no_of_words] => 13488 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18174014 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/174014
Liquid crystal device, display device, and optical modulation module Feb 23, 2023 Issued
Array ( [id] => 18584245 [patent_doc_number] => 20230266508 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-24 [patent_title] => INFRARED SELECTIVE EMITTER WITH IMPROVED WEAR RESISTANCE [patent_app_type] => utility [patent_app_number] => 18/112948 [patent_app_country] => US [patent_app_date] => 2023-02-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6221 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18112948 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/112948
Infrared selective emitter with improved wear resistance Feb 21, 2023 Issued
Array ( [id] => 20481448 [patent_doc_number] => 12529921 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-20 [patent_title] => Electronic device [patent_app_type] => utility [patent_app_number] => 18/166482 [patent_app_country] => US [patent_app_date] => 2023-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 380 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18166482 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/166482
Electronic device Feb 8, 2023 Issued
Array ( [id] => 20467822 [patent_doc_number] => 12523858 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Method and apparatus for localizing objects by means of a light sheet [patent_app_type] => utility [patent_app_number] => 18/166773 [patent_app_country] => US [patent_app_date] => 2023-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 9 [patent_no_of_words] => 2359 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18166773 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/166773
Method and apparatus for localizing objects by means of a light sheet Feb 8, 2023 Issued
Array ( [id] => 19166995 [patent_doc_number] => 11982896 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-05-14 [patent_title] => Liquid crystal display device and polarizing plate [patent_app_type] => utility [patent_app_number] => 18/106913 [patent_app_country] => US [patent_app_date] => 2023-02-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 105 [patent_figures_cnt] => 113 [patent_no_of_words] => 32249 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 91 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18106913 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/106913
Liquid crystal display device and polarizing plate Feb 6, 2023 Issued
Array ( [id] => 19107077 [patent_doc_number] => 11960176 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-16 [patent_title] => Liquid crystal display device [patent_app_type] => utility [patent_app_number] => 18/106465 [patent_app_country] => US [patent_app_date] => 2023-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 51 [patent_figures_cnt] => 51 [patent_no_of_words] => 21607 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 513 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18106465 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/106465
Liquid crystal display device Feb 5, 2023 Issued
Array ( [id] => 18421876 [patent_doc_number] => 20230176340 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-08 [patent_title] => CAMERA MODULE AND TERMINAL DEVICE [patent_app_type] => utility [patent_app_number] => 18/161720 [patent_app_country] => US [patent_app_date] => 2023-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12547 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 186 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18161720 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/161720
Camera module and terminal device Jan 29, 2023 Issued
Array ( [id] => 18904207 [patent_doc_number] => 20240019692 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => OPTICAL SYSTEM [patent_app_type] => utility [patent_app_number] => 18/103174 [patent_app_country] => US [patent_app_date] => 2023-01-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16477 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -27 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18103174 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/103174
OPTICAL SYSTEM Jan 29, 2023 Pending
Array ( [id] => 20017441 [patent_doc_number] => 20250155663 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => HOLOGRAPHIC OPTICAL ELEMENT AND TEMPERATURE STABILIZATION [patent_app_type] => utility [patent_app_number] => 18/728646 [patent_app_country] => US [patent_app_date] => 2023-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5025 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 64 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18728646 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/728646
HOLOGRAPHIC OPTICAL ELEMENT AND TEMPERATURE STABILIZATION Jan 12, 2023 Pending
Array ( [id] => 18498759 [patent_doc_number] => 20230221479 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-13 [patent_title] => LENSLET-BASED MICROLED PROJECTORS [patent_app_type] => utility [patent_app_number] => 18/154691 [patent_app_country] => US [patent_app_date] => 2023-01-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8653 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18154691 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/154691
LENSLET-BASED MICROLED PROJECTORS Jan 12, 2023 Pending
Array ( [id] => 18973516 [patent_doc_number] => 20240053608 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-15 [patent_title] => AUGMENTED REALITY OPTICAL BLOCK [patent_app_type] => utility [patent_app_number] => 18/096376 [patent_app_country] => US [patent_app_date] => 2023-01-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6062 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 92 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18096376 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/096376
AUGMENTED REALITY OPTICAL BLOCK Jan 11, 2023 Pending
Array ( [id] => 18531275 [patent_doc_number] => 20230236347 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => REFLECTIVE ULTRAVIOLET WIRE GRID POLARIZER [patent_app_type] => utility [patent_app_number] => 18/095322 [patent_app_country] => US [patent_app_date] => 2023-01-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2680 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18095322 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/095322
REFLECTIVE ULTRAVIOLET WIRE GRID POLARIZER Jan 9, 2023 Pending
Array ( [id] => 18531310 [patent_doc_number] => 20230236382 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => IMAGING LENS ASSEMBLY AND ELECTRONIC DEVICE [patent_app_type] => utility [patent_app_number] => 18/151508 [patent_app_country] => US [patent_app_date] => 2023-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14182 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -32 [patent_words_short_claim] => 441 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18151508 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/151508
Imaging lens assembly and electronic device Jan 8, 2023 Issued
Array ( [id] => 18832134 [patent_doc_number] => 20230400661 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => CAMERA MODULE [patent_app_type] => utility [patent_app_number] => 18/092484 [patent_app_country] => US [patent_app_date] => 2023-01-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6952 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18092484 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/092484
CAMERA MODULE Jan 2, 2023 Pending
Array ( [id] => 20734723 [patent_doc_number] => 12641989 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-26 [patent_title] => Display apparatus [patent_app_type] => utility [patent_app_number] => 18/090933 [patent_app_country] => US [patent_app_date] => 2022-12-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 5425 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18090933 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/090933
Display apparatus Dec 28, 2022 Issued
Array ( [id] => 18470724 [patent_doc_number] => 20230205010 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-29 [patent_title] => LIQUID CRYSTAL DISPLAY ELEMENT [patent_app_type] => utility [patent_app_number] => 18/089303 [patent_app_country] => US [patent_app_date] => 2022-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17326 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18089303 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/089303
Liquid crystal display element Dec 26, 2022 Issued
Array ( [id] => 20825291 [patent_doc_number] => 12678835 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-07-14 [patent_title] => Optical system [patent_app_type] => utility [patent_app_number] => 18/089145 [patent_app_country] => US [patent_app_date] => 2022-12-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 1113 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 222 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18089145 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/089145
OPTICAL SYSTEM Dec 26, 2022 Issued
Array ( [id] => 19052015 [patent_doc_number] => 20240093984 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-21 [patent_title] => FRINGE PROJECTOR FOR DEPTH SENSING [patent_app_type] => utility [patent_app_number] => 18/088302 [patent_app_country] => US [patent_app_date] => 2022-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7577 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18088302 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/088302
FRINGE PROJECTOR FOR DEPTH SENSING Dec 22, 2022 Abandoned
Array ( [id] => 20373769 [patent_doc_number] => 12481201 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Flexible infrared selective emitter and manufacturing method thereof [patent_app_type] => utility [patent_app_number] => 18/087755 [patent_app_country] => US [patent_app_date] => 2022-12-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 716 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18087755 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/087755
Flexible infrared selective emitter and manufacturing method thereof Dec 21, 2022 Issued
Array ( [id] => 20702600 [patent_doc_number] => 12625306 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-12 [patent_title] => Thin film narrow bandwidth transmission filter for optical emitters [patent_app_type] => utility [patent_app_number] => 18/068314 [patent_app_country] => US [patent_app_date] => 2022-12-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18068314 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/068314
Thin film narrow bandwidth transmission filter for optical emitters Dec 18, 2022 Issued
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