Search

Vincent Wen-liang Chang

Examiner (ID: 12239, Phone: (571)270-1214 , Office: P/2116 )

Most Active Art Unit
2119
Art Unit(s)
2127, 2119, 2115, 2116
Total Applications
468
Issued Applications
340
Pending Applications
36
Abandoned Applications
108

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 19203701 [patent_doc_number] => 20240175600 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-30 [patent_title] => REDUNDANT POWER SUPPLY FOR HVAC SYSTEM INCLUDING REFRIGERANT LEAKAGE MITIGATION [patent_app_type] => utility [patent_app_number] => 18/432608 [patent_app_country] => US [patent_app_date] => 2024-02-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2793 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18432608 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/432608
Redundant power supply for HVAC system including refrigerant leakage mitigation Feb 4, 2024 Issued
Array ( [id] => 19911409 [patent_doc_number] => 12287617 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-29 [patent_title] => Multi-user computer-numerically-controlled machine [patent_app_type] => utility [patent_app_number] => 18/527838 [patent_app_country] => US [patent_app_date] => 2023-12-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 10430 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [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] => 18527838 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/527838
Multi-user computer-numerically-controlled machine Dec 3, 2023 Issued
Array ( [id] => 19529237 [patent_doc_number] => 20240353139 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-10-24 [patent_title] => METHOD FOR EFFICIENT DEPLOYMENT OF A CLUSTER OF AIR PURIFICATION DEVICES IN LARGE INDOOR AND OUTDOOR SPACES [patent_app_type] => utility [patent_app_number] => 18/518561 [patent_app_country] => US [patent_app_date] => 2023-11-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8213 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 193 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18518561 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/518561
Method for efficient deployment of a cluster of air purification devices in large indoor and outdoor spaces Nov 22, 2023 Issued
Array ( [id] => 19624867 [patent_doc_number] => 12163682 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Adaptive thermal comfort learning for optimized HVAC control [patent_app_type] => utility [patent_app_number] => 18/494649 [patent_app_country] => US [patent_app_date] => 2023-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8977 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18494649 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/494649
Adaptive thermal comfort learning for optimized HVAC control Oct 24, 2023 Issued
Array ( [id] => 18941403 [patent_doc_number] => 20240036542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => VENTILATOR COMPRISING A DEVICE FOR CONTACTLESS DETECTION OF OPERATIONS CARRIED OUT BY A USER [patent_app_type] => utility [patent_app_number] => 18/483735 [patent_app_country] => US [patent_app_date] => 2023-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5820 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18483735 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/483735
VENTILATOR COMPRISING A DEVICE FOR CONTACTLESS DETECTION OF OPERATIONS CARRIED OUT BY A USER Oct 9, 2023 Pending
Array ( [id] => 18941403 [patent_doc_number] => 20240036542 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-01 [patent_title] => VENTILATOR COMPRISING A DEVICE FOR CONTACTLESS DETECTION OF OPERATIONS CARRIED OUT BY A USER [patent_app_type] => utility [patent_app_number] => 18/483735 [patent_app_country] => US [patent_app_date] => 2023-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5820 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18483735 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/483735
VENTILATOR COMPRISING A DEVICE FOR CONTACTLESS DETECTION OF OPERATIONS CARRIED OUT BY A USER Oct 9, 2023 Pending
Array ( [id] => 19832742 [patent_doc_number] => 20250084528 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-03-13 [patent_title] => HEAT TRANSFER MANAGEMENT IN SUBSTRATE SUPPORT SYSTEMS [patent_app_type] => utility [patent_app_number] => 18/244197 [patent_app_country] => US [patent_app_date] => 2023-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14320 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18244197 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/244197
HEAT TRANSFER MANAGEMENT IN SUBSTRATE SUPPORT SYSTEMS Sep 7, 2023 Pending
Array ( [id] => 19521895 [patent_doc_number] => 12123608 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-10-22 [patent_title] => Time-based and sound-based diagnostics for a heating, ventilation, and air conditioning burner assembly [patent_app_type] => utility [patent_app_number] => 18/453099 [patent_app_country] => US [patent_app_date] => 2023-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 12032 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 297 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18453099 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/453099
Time-based and sound-based diagnostics for a heating, ventilation, and air conditioning burner assembly Aug 20, 2023 Issued
Array ( [id] => 18903674 [patent_doc_number] => 20240019159 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-18 [patent_title] => AIR CONDITIONING SYSTEM AND METHOD FOR CONTROLLING AIR CONDITIONING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/352817 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8117 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18352817 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/352817
AIR CONDITIONING SYSTEM AND METHOD FOR CONTROLLING AIR CONDITIONING SYSTEM Jul 13, 2023 Pending
Array ( [id] => 18755002 [patent_doc_number] => 20230358428 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => FAN DEVICE, AND UTILIZATION UNIT AND HEAT SOURCE UNIT OF AN AIR CONDITIONER, HOT WATER SUPPLIER, AND AIR CLEANER EACH INCLUDING THE FAN DEVICE [patent_app_type] => utility [patent_app_number] => 18/222117 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7397 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18222117 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/222117
Fan device, and utilization unit and heat source unit of an air conditioner, hot water supplier, and air cleaner each including the fan device Jul 13, 2023 Issued
Array ( [id] => 18740603 [patent_doc_number] => 20230349580 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => SMART BUILDING LEVEL CONTROL FOR IMPROVING COMPLIANCE OF TEMPERATURE, PRESSURE, AND HUMIDITY [patent_app_type] => utility [patent_app_number] => 18/219205 [patent_app_country] => US [patent_app_date] => 2023-07-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17903 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18219205 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/219205
SMART BUILDING LEVEL CONTROL FOR IMPROVING COMPLIANCE OF TEMPERATURE, PRESSURE, AND HUMIDITY Jul 6, 2023 Pending
Array ( [id] => 19693929 [patent_doc_number] => 20250012474 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-09 [patent_title] => System and method for improving indoor air quality [patent_app_type] => utility [patent_app_number] => 18/347730 [patent_app_country] => US [patent_app_date] => 2023-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9774 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 145 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18347730 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/347730
System and method for improving indoor air quality Jul 5, 2023 Pending
Array ( [id] => 19685074 [patent_doc_number] => 20250003619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => SYSTEM AND METHOD FOR DETERMINING AIR QUALITY CHARACTERISTIC OF ENCLOSED VOLUME [patent_app_type] => utility [patent_app_number] => 18/342838 [patent_app_country] => US [patent_app_date] => 2023-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8204 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18342838 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/342838
SYSTEM AND METHOD FOR DETERMINING AIR QUALITY CHARACTERISTIC OF ENCLOSED VOLUME Jun 27, 2023 Pending
Array ( [id] => 19685074 [patent_doc_number] => 20250003619 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-02 [patent_title] => SYSTEM AND METHOD FOR DETERMINING AIR QUALITY CHARACTERISTIC OF ENCLOSED VOLUME [patent_app_type] => utility [patent_app_number] => 18/342838 [patent_app_country] => US [patent_app_date] => 2023-06-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8204 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18342838 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/342838
SYSTEM AND METHOD FOR DETERMINING AIR QUALITY CHARACTERISTIC OF ENCLOSED VOLUME Jun 27, 2023 Pending
Array ( [id] => 18832296 [patent_doc_number] => 20230400823 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => ORCHESTRATED ENERGY [patent_app_type] => utility [patent_app_number] => 18/335087 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10232 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [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] => 18335087 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/335087
ORCHESTRATED ENERGY Jun 13, 2023 Pending
Array ( [id] => 18693666 [patent_doc_number] => 20230324065 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => MULTI-ZONE ENVIRONMENTAL CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 18/209270 [patent_app_country] => US [patent_app_date] => 2023-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10595 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18209270 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/209270
Multi-zone environmental control system Jun 12, 2023 Issued
Array ( [id] => 18693666 [patent_doc_number] => 20230324065 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => MULTI-ZONE ENVIRONMENTAL CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 18/209270 [patent_app_country] => US [patent_app_date] => 2023-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10595 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18209270 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/209270
Multi-zone environmental control system Jun 12, 2023 Issued
Array ( [id] => 18726864 [patent_doc_number] => 20230341145 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-26 [patent_title] => AIR CONDITIONING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/141355 [patent_app_country] => US [patent_app_date] => 2023-04-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17258 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [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] => 18141355 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/141355
Air conditioning system Apr 27, 2023 Issued
Array ( [id] => 18888655 [patent_doc_number] => 11867422 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-01-09 [patent_title] => Method for efficient deployment of a cluster of air purification devices in large indoor and outdoor spaces [patent_app_type] => utility [patent_app_number] => 18/304707 [patent_app_country] => US [patent_app_date] => 2023-04-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 13 [patent_no_of_words] => 8182 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 266 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18304707 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/304707
Method for efficient deployment of a cluster of air purification devices in large indoor and outdoor spaces Apr 20, 2023 Issued
Array ( [id] => 18512244 [patent_doc_number] => 20230228443 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-20 [patent_title] => TEMPERATURE ESTIMATION DEVICE, AIR CONDITIONING CONTROL DEVICE, AND AIR CONDITIONING SYSTEM [patent_app_type] => utility [patent_app_number] => 18/126045 [patent_app_country] => US [patent_app_date] => 2023-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8346 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 75 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18126045 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/126045
TEMPERATURE ESTIMATION DEVICE, AIR CONDITIONING CONTROL DEVICE, AND AIR CONDITIONING SYSTEM Mar 23, 2023 Pending
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