Search

Daniel D. Chang

Examiner (ID: 17449, Phone: (571)272-1801 , Office: P/2844 )

Most Active Art Unit
2844
Art Unit(s)
0, 2819, 2844
Total Applications
2536
Issued Applications
2316
Pending Applications
106
Abandoned Applications
143

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20488939 [patent_doc_number] => 20260025141 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-01-22 [patent_title] => NEGATIVE VOLTAGE LEVEL SHIFTER [patent_app_type] => utility [patent_app_number] => 18/777717 [patent_app_country] => US [patent_app_date] => 2024-07-19 [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] => -20 [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] => 18777717 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/777717
NEGATIVE VOLTAGE LEVEL SHIFTER Jul 18, 2024 Pending
Array ( [id] => 19560454 [patent_doc_number] => 20240372246 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-07 [patent_title] => ELECTRONIC DEVICE INCLUDING ANTENNA INCLUDING COUPLING-FEEDING STRUCTURE [patent_app_type] => utility [patent_app_number] => 18/773804 [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] => 11081 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 18773804 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/773804
ELECTRONIC DEVICE INCLUDING ANTENNA INCLUDING COUPLING-FEEDING STRUCTURE Jul 15, 2024 Pending
Array ( [id] => 19533820 [patent_doc_number] => 20240357722 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => SYSTEM AND METHOD FOR DRIVING AND CONTROLLING LIGHT SOURCES [patent_app_type] => utility [patent_app_number] => 18/758919 [patent_app_country] => US [patent_app_date] => 2024-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12951 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 209 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18758919 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/758919
SYSTEM AND METHOD FOR DRIVING AND CONTROLLING LIGHT SOURCES Jun 27, 2024 Pending
Array ( [id] => 19644863 [patent_doc_number] => 20240419383 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-12-19 [patent_title] => IMAGE GENERATING DEVICE AND COMMUNICATION CIRCUIT THEREOF [patent_app_type] => utility [patent_app_number] => 18/741690 [patent_app_country] => US [patent_app_date] => 2024-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18741690 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/741690
IMAGE GENERATING DEVICE AND COMMUNICATION CIRCUIT THEREOF Jun 11, 2024 Pending
Array ( [id] => 20410469 [patent_doc_number] => 20250379578 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-11 [patent_title] => OPTIMIZING CENTRAL PROCESSING UNIT (CPU) CACHE MEMORY DC POWER WITH RAIL VOTING SCHEME [patent_app_type] => utility [patent_app_number] => 18/738893 [patent_app_country] => US [patent_app_date] => 2024-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2056 [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] => 18738893 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/738893
Optimizing central processing unit (CPU) cache memory DC power with rail voting scheme Jun 9, 2024 Issued
Array ( [id] => 19692245 [patent_doc_number] => 20250010790 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => LIGHTING SYSTEM FOR A VEHICLE, METHOD OF OPERATING A LIGHTING SYSTEM, AND VEHICLE [patent_app_type] => utility [patent_app_number] => 18/731592 [patent_app_country] => US [patent_app_date] => 2024-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6895 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18731592 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/731592
LIGHTING SYSTEM FOR A VEHICLE, METHOD OF OPERATING A LIGHTING SYSTEM, AND VEHICLE Jun 2, 2024 Pending
Array ( [id] => 19454771 [patent_doc_number] => 20240314901 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => LIGHT SOURCE DEVICE, OBSERVATION SYSTEM, AND COLOR-BALANCE CORRECTION METHOD [patent_app_type] => utility [patent_app_number] => 18/678809 [patent_app_country] => US [patent_app_date] => 2024-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8626 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 241 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18678809 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/678809
Light source device, observation system, and color-balance correction method May 29, 2024 Issued
Array ( [id] => 20582753 [patent_doc_number] => 12575013 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-10 [patent_title] => Variable input device utilizing time-of-flight of an optical transmission through a discontinuous optical guide [patent_app_type] => utility [patent_app_number] => 18/670175 [patent_app_country] => US [patent_app_date] => 2024-05-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4082 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18670175 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/670175
Variable input device utilizing time-of-flight of an optical transmission through a discontinuous optical guide May 20, 2024 Issued
Array ( [id] => 20368114 [patent_doc_number] => 20250357926 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-20 [patent_title] => SEMICONDUCTOR DEVICE AND OPERATING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/663791 [patent_app_country] => US [patent_app_date] => 2024-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2130 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 47 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18663791 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/663791
SEMICONDUCTOR DEVICE AND OPERATING METHOD THEREOF May 13, 2024 Pending
Array ( [id] => 20351919 [patent_doc_number] => 20250348771 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-13 [patent_title] => Quantum Streaming Kernel [patent_app_type] => utility [patent_app_number] => 18/645818 [patent_app_country] => US [patent_app_date] => 2024-04-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7022 [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] => 18645818 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/645818
Quantum Streaming Kernel Apr 24, 2024 Pending
Array ( [id] => 19351197 [patent_doc_number] => 20240260161 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-01 [patent_title] => RESETTABLE LIGHTING SYSTEM AND METHOD [patent_app_type] => utility [patent_app_number] => 18/635449 [patent_app_country] => US [patent_app_date] => 2024-04-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12552 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 18635449 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/635449
RESETTABLE LIGHTING SYSTEM AND METHOD Apr 14, 2024 Pending
Array ( [id] => 20294360 [patent_doc_number] => 20250319603 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-16 [patent_title] => DISTANCE-BASED LED POWER MODULATION IN SURGICAL TRACKING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/632016 [patent_app_country] => US [patent_app_date] => 2024-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2161 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18632016 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/632016
DISTANCE-BASED LED POWER MODULATION IN SURGICAL TRACKING SYSTEM Apr 9, 2024 Pending
Array ( [id] => 19486527 [patent_doc_number] => 20240334569 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-03 [patent_title] => LIGHTING SYSTEM INCLUDING A FAST LOW-POWER STARTUP CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/620961 [patent_app_country] => US [patent_app_date] => 2024-03-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 18155 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18620961 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/620961
LIGHTING SYSTEM INCLUDING A FAST LOW-POWER STARTUP CIRCUIT Mar 27, 2024 Pending
Array ( [id] => 20252686 [patent_doc_number] => 20250301555 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-25 [patent_title] => SYSTEMS AND METHODS FOR COMMUNICATION OF SPATIOTEMPORAL PATTERNS [patent_app_type] => utility [patent_app_number] => 18/612846 [patent_app_country] => US [patent_app_date] => 2024-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7175 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18612846 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/612846
SYSTEMS AND METHODS FOR COMMUNICATION OF SPATIOTEMPORAL PATTERNS Mar 20, 2024 Pending
Array ( [id] => 20565248 [patent_doc_number] => 12567863 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-03 [patent_title] => Fused memory and arithmetic circuit [patent_app_type] => utility [patent_app_number] => 18/612278 [patent_app_country] => US [patent_app_date] => 2024-03-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 2190 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 90 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18612278 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/612278
Fused memory and arithmetic circuit Mar 20, 2024 Issued
Array ( [id] => 20405490 [patent_doc_number] => 12495479 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-09 [patent_title] => Light-emitting diode circuit with parallel sequence function, light-emitting diode circuit package, and light-emitting diode light string [patent_app_type] => utility [patent_app_number] => 18/610608 [patent_app_country] => US [patent_app_date] => 2024-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1088 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 165 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18610608 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/610608
Light-emitting diode circuit with parallel sequence function, light-emitting diode circuit package, and light-emitting diode light string Mar 19, 2024 Issued
Array ( [id] => 20347461 [patent_doc_number] => 12471199 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-11 [patent_title] => Dimmer-type dimming power supply [patent_app_type] => utility [patent_app_number] => 18/595937 [patent_app_country] => US [patent_app_date] => 2024-03-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 0 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 267 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18595937 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/595937
Dimmer-type dimming power supply Mar 4, 2024 Issued
Array ( [id] => 20210761 [patent_doc_number] => 20250280481 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-04 [patent_title] => SYSTEM AND METHOD OF VEHICLE HEADLAMP CONTROL [patent_app_type] => utility [patent_app_number] => 18/592296 [patent_app_country] => US [patent_app_date] => 2024-02-29 [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] => -11 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18592296 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/592296
SYSTEM AND METHOD OF VEHICLE HEADLAMP CONTROL Feb 28, 2024 Pending
Array ( [id] => 20612509 [patent_doc_number] => 12588125 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-03-24 [patent_title] => Hysteresis circuit, emergency lighting circuit and lighting device [patent_app_type] => utility [patent_app_number] => 18/437535 [patent_app_country] => US [patent_app_date] => 2024-02-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 1237 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 338 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18437535 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/437535
Hysteresis circuit, emergency lighting circuit and lighting device Feb 8, 2024 Issued
Array ( [id] => 20334335 [patent_doc_number] => 12464629 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-04 [patent_title] => Systems and methods for a multichannel navigation light [patent_app_type] => utility [patent_app_number] => 18/433824 [patent_app_country] => US [patent_app_date] => 2024-02-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 349 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18433824 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/433824
Systems and methods for a multichannel navigation light Feb 5, 2024 Issued
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