
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 number | Title of the application | Filing Date | Status |
|---|---|---|---|
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 |