Search

Joseph Chang

Examiner (ID: 1965, Phone: (571)272-1759 , Office: P/2842 )

Most Active Art Unit
2817
Art Unit(s)
2842, 2836, 2817, 2849, 2843
Total Applications
2215
Issued Applications
1946
Pending Applications
125
Abandoned Applications
172

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20876270 [patent_doc_number] => 20260221750 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-07-30 [patent_title] => IN-VEHICLE CUTOFF CURRENT SUPPLY DEVICE [patent_app_type] => utility [patent_app_number] => 19/149174 [patent_app_country] => US [patent_app_date] => 2023-01-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2468 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 255 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19149174 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/149174
IN-VEHICLE CUTOFF CURRENT SUPPLY DEVICE Jul 17, 2025 Pending
Array ( [id] => 20410444 [patent_doc_number] => 20250379553 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-11 [patent_title] => OSCILLATOR MASTER BOARD, OSCILLATORS AND METHOD FOR MAKING THE SAME [patent_app_type] => utility [patent_app_number] => 19/223532 [patent_app_country] => US [patent_app_date] => 2025-05-30 [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] => -10 [patent_words_short_claim] => 238 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19223532 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/223532
OSCILLATOR MASTER BOARD, OSCILLATORS AND METHOD FOR MAKING THE SAME May 29, 2025 Pending
Array ( [id] => 20236378 [patent_doc_number] => 20250293697 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-18 [patent_title] => RING OSCILLATOR AND COMMUNICATION APPARATUS [patent_app_type] => utility [patent_app_number] => 19/222522 [patent_app_country] => US [patent_app_date] => 2025-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4584 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 204 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19222522 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/222522
RING OSCILLATOR AND COMMUNICATION APPARATUS May 28, 2025 Pending
Array ( [id] => 20223524 [patent_doc_number] => 20250286455 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => METHOD AND POWER DISTRIBUTION SYSTEM FOR GENERATING ELECTRICAL POWER [patent_app_type] => utility [patent_app_number] => 19/215949 [patent_app_country] => US [patent_app_date] => 2025-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4747 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19215949 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/215949
METHOD AND POWER DISTRIBUTION SYSTEM FOR GENERATING ELECTRICAL POWER May 21, 2025 Pending
Array ( [id] => 20223472 [patent_doc_number] => 20250286403 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => ENERGY STORAGE SYSTEM AND BLACK START APPARATUS [patent_app_type] => utility [patent_app_number] => 19/216576 [patent_app_country] => US [patent_app_date] => 2025-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2758 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19216576 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/216576
ENERGY STORAGE SYSTEM AND BLACK START APPARATUS May 21, 2025 Pending
Array ( [id] => 20677388 [patent_doc_number] => 20260116200 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-04-30 [patent_title] => ADAPTIVE HARDWARE SAFETY DISCONNECT SYSTEM [patent_app_type] => utility [patent_app_number] => 19/216574 [patent_app_country] => US [patent_app_date] => 2025-05-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1152 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19216574 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/216574
ADAPTIVE HARDWARE SAFETY DISCONNECT SYSTEM May 21, 2025 Pending
Array ( [id] => 20206892 [patent_doc_number] => 20250276612 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-04 [patent_title] => POWER SUPPLY SYSTEM AND PROGRAM [patent_app_type] => utility [patent_app_number] => 19/209893 [patent_app_country] => US [patent_app_date] => 2025-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 23754 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 385 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19209893 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/209893
POWER SUPPLY SYSTEM AND PROGRAM May 15, 2025 Pending
Array ( [id] => 20410394 [patent_doc_number] => 20250379503 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-12-11 [patent_title] => DISTRIBUTED POWER SUPPLY [patent_app_type] => utility [patent_app_number] => 19/207866 [patent_app_country] => US [patent_app_date] => 2025-05-14 [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] => 58 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19207866 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/207866
DISTRIBUTED POWER SUPPLY May 13, 2025 Pending
Array ( [id] => 20567957 [patent_doc_number] => 20260061878 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2026-03-05 [patent_title] => BUILDING-SIDE PANEL AND SYSTEM [patent_app_type] => utility [patent_app_number] => 19/208204 [patent_app_country] => US [patent_app_date] => 2025-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9744 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 19208204 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/208204
BUILDING-SIDE PANEL AND SYSTEM May 13, 2025 Pending
Array ( [id] => 20382406 [patent_doc_number] => 20250364899 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-27 [patent_title] => BIDIRECTIONAL DC/DC CONVERTER, POWER INTERRUPTION PROTECTION CIRCUIT, AND SEMICONDUCTOR DEVICE [patent_app_type] => utility [patent_app_number] => 19/208023 [patent_app_country] => US [patent_app_date] => 2025-05-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19208023 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/208023
BIDIRECTIONAL DC/DC CONVERTER, POWER INTERRUPTION PROTECTION CIRCUIT, AND SEMICONDUCTOR DEVICE May 13, 2025 Pending
Array ( [id] => 20325270 [patent_doc_number] => 20250337358 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-10-30 [patent_title] => CRYSTAL UNIT WITH BUILT-IN TEMPERATURE SENSOR [patent_app_type] => utility [patent_app_number] => 19/185152 [patent_app_country] => US [patent_app_date] => 2025-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6119 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19185152 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/185152
CRYSTAL UNIT WITH BUILT-IN TEMPERATURE SENSOR Apr 20, 2025 Pending
Array ( [id] => 20099736 [patent_doc_number] => 20250229672 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-17 [patent_title] => CONTROL METHOD FOR BATTERY HEATING SYSTEM, AND BATTERY HEATING SYSTEM AND ELECTRIC VEHICLE [patent_app_type] => utility [patent_app_number] => 19/097887 [patent_app_country] => US [patent_app_date] => 2025-04-02 [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] => 19097887 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/097887
CONTROL METHOD FOR BATTERY HEATING SYSTEM, AND BATTERY HEATING SYSTEM AND ELECTRIC VEHICLE Apr 1, 2025 Pending
Array ( [id] => 20224558 [patent_doc_number] => 20250287489 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-09-11 [patent_title] => LUMINAIRE NETWORK MANAGEMENT METHOD [patent_app_type] => utility [patent_app_number] => 19/081346 [patent_app_country] => US [patent_app_date] => 2025-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6213 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19081346 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/081346
LUMINAIRE NETWORK MANAGEMENT METHOD Mar 16, 2025 Pending
Array ( [id] => 20137326 [patent_doc_number] => 20250244370 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-07-31 [patent_title] => ON-CHIP CAPACITANCE MEASUREMENT METHOD AND APPARATUS [patent_app_type] => utility [patent_app_number] => 19/049134 [patent_app_country] => US [patent_app_date] => 2025-02-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2280 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 19049134 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/049134
ON-CHIP CAPACITANCE MEASUREMENT METHOD AND APPARATUS Feb 9, 2025 Pending
Array ( [id] => 20029342 [patent_doc_number] => 20250167564 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => ENERGY STORAGE SYSTEM ADAPTED IN AC AND DC POWER CONFIGURATIONS [patent_app_type] => utility [patent_app_number] => 19/033374 [patent_app_country] => US [patent_app_date] => 2025-01-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8424 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 19033374 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/033374
ENERGY STORAGE SYSTEM ADAPTED IN AC AND DC POWER CONFIGURATIONS Jan 20, 2025 Pending
Array ( [id] => 20029610 [patent_doc_number] => 20250167832 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-22 [patent_title] => Crowdsourced Wireless Power Distribution and Monetization [patent_app_type] => utility [patent_app_number] => 19/031886 [patent_app_country] => US [patent_app_date] => 2025-01-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 20352 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -15 [patent_words_short_claim] => 20 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19031886 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/031886
Crowdsourced Wireless Power Distribution and Monetization Jan 17, 2025 Pending
Array ( [id] => 20020232 [patent_doc_number] => 20250158454 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => Power Transfer System With Patient Transport Apparatus And Power Transfer Device To Transfer Power To The Patient Transport Apparatus [patent_app_type] => utility [patent_app_number] => 19/024787 [patent_app_country] => US [patent_app_date] => 2025-01-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5974 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19024787 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/024787
Power Transfer System With Patient Transport Apparatus And Power Transfer Device To Transfer Power To The Patient Transport Apparatus Jan 15, 2025 Pending
Array ( [id] => 20020205 [patent_doc_number] => 20250158427 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-05-15 [patent_title] => APPARATUS TO DETECT DEFECTIVE BATTERY MODULE AND ABNORMALITY IN A SEQUENTIAL CHARGING CONTROL CHAIN [patent_app_type] => utility [patent_app_number] => 19/023085 [patent_app_country] => US [patent_app_date] => 2025-01-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8423 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [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] => 19023085 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/023085
APPARATUS TO DETECT DEFECTIVE BATTERY MODULE AND ABNORMALITY IN A SEQUENTIAL CHARGING CONTROL CHAIN Jan 14, 2025 Pending
Array ( [id] => 20733308 [patent_doc_number] => 12640569 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-05-26 [patent_title] => Division method and system for distributed renewable-energy electricity generation clusters [patent_app_type] => utility [patent_app_number] => 19/007947 [patent_app_country] => US [patent_app_date] => 2025-01-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 4042 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 174 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19007947 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/007947
Division method and system for distributed renewable-energy electricity generation clusters Jan 1, 2025 Issued
Array ( [id] => 19899024 [patent_doc_number] => 12276945 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2025-04-15 [patent_title] => Method for compensating for frequency shifts caused by variations in environmental parameter of atomic clock [patent_app_type] => utility [patent_app_number] => 18/991779 [patent_app_country] => US [patent_app_date] => 2024-12-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 531 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18991779 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/991779
Method for compensating for frequency shifts caused by variations in environmental parameter of atomic clock Dec 22, 2024 Issued
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