Search

Kawing Chan

Examiner (ID: 12955, Phone: (571)270-3909 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
2846, 4147, 2837
Total Applications
953
Issued Applications
688
Pending Applications
60
Abandoned Applications
235

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20377164 [patent_doc_number] => 20250359657 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-11-27 [patent_title] => Intelligent dual-mode electric floor brush [patent_app_type] => utility [patent_app_number] => 19/289401 [patent_app_country] => US [patent_app_date] => 2025-08-04 [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] => -14 [patent_words_short_claim] => 212 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 19289401 [rel_patent_id] =>[rel_patent_doc_number] =>)
19/289401
Intelligent dual-mode electric floor brush Aug 3, 2025 Pending
Array ( [id] => 19572470 [patent_doc_number] => 20240376762 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-11-14 [patent_title] => DOOR CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 18/661343 [patent_app_country] => US [patent_app_date] => 2024-05-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10655 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 60 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18661343 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/661343
DOOR CONTROL SYSTEM May 9, 2024 Pending
Array ( [id] => 19741760 [patent_doc_number] => 12218613 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-04 [patent_title] => Electric motor driving apparatus, control method, vehicle, and readable storage medium [patent_app_type] => utility [patent_app_number] => 18/606204 [patent_app_country] => US [patent_app_date] => 2024-03-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 9339 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18606204 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/606204
Electric motor driving apparatus, control method, vehicle, and readable storage medium Mar 14, 2024 Issued
Array ( [id] => 19112114 [patent_doc_number] => 20240123864 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-18 [patent_title] => SYSTEM AND METHOD FOR SPEED CONTROL AS A FUNCTION OF BATTERY CAPABILITY IN AN ELECTRIC AIRCRAFT [patent_app_type] => utility [patent_app_number] => 18/379004 [patent_app_country] => US [patent_app_date] => 2023-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17458 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [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] => 18379004 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/379004
SYSTEM AND METHOD FOR SPEED CONTROL AS A FUNCTION OF BATTERY CAPABILITY IN AN ELECTRIC AIRCRAFT Oct 10, 2023 Abandoned
Array ( [id] => 19758659 [patent_doc_number] => 20250047224 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-02-06 [patent_title] => Control Device and Method for Adjusting Speed and Forward/Reverse Rotation of a Wire-Controlled Brushless Motor Power Supply During Positive/Negative Half-Cycle Phase Loss [patent_app_type] => utility [patent_app_number] => 18/451544 [patent_app_country] => US [patent_app_date] => 2023-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3379 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 317 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18451544 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/451544
Control Device and Method for Adjusting Speed and Forward/Reverse Rotation of a Wire-Controlled Brushless Motor Power Supply During Positive/Negative Half-Cycle Phase Loss Aug 16, 2023 Pending
Array ( [id] => 20466047 [patent_doc_number] => 12522079 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Braking controller for the link circuit of a drive system [patent_app_type] => utility [patent_app_number] => 18/446851 [patent_app_country] => US [patent_app_date] => 2023-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 0 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 367 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18446851 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/446851
BRAKING CONTROLLER FOR THE LINK CIRCUIT OF A DRIVE SYSTEM Aug 8, 2023 Pending
Array ( [id] => 19071932 [patent_doc_number] => 20240106358 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-03-28 [patent_title] => FORCE CONTROL METHOD AND SYSTEM FOR MULTI-MOTOR SYNCHRONIZATION [patent_app_type] => utility [patent_app_number] => 18/224614 [patent_app_country] => US [patent_app_date] => 2023-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5104 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 125 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18224614 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/224614
Force control method and system for multi-motor synchronization Jul 20, 2023 Issued
Array ( [id] => 18830180 [patent_doc_number] => 20230398704 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-14 [patent_title] => Pick and Place Robot with Inventory Drop Guard [patent_app_type] => utility [patent_app_number] => 18/328069 [patent_app_country] => US [patent_app_date] => 2023-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5154 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 86 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18328069 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/328069
Pick and Place Robot with Inventory Drop Guard Jun 1, 2023 Pending
Array ( [id] => 19123910 [patent_doc_number] => 11967911 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-23 [patent_title] => Method for direct voltage saturation calculation and prevention of inverter voltage saturation [patent_app_type] => utility [patent_app_number] => 18/320399 [patent_app_country] => US [patent_app_date] => 2023-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 2748 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [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] => 18320399 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/320399
Method for direct voltage saturation calculation and prevention of inverter voltage saturation May 18, 2023 Issued
Array ( [id] => 18600690 [patent_doc_number] => 20230275493 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-31 [patent_title] => GAS ENGINE REPLACEMENT ELECTRONICS MODULARITY FOR FEATURE EXPANSION [patent_app_type] => utility [patent_app_number] => 18/314294 [patent_app_country] => US [patent_app_date] => 2023-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14589 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18314294 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/314294
Gas engine replacement electronics modularity for feature expansion May 8, 2023 Issued
Array ( [id] => 18657340 [patent_doc_number] => 20230303243 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => DUAL-MOTOR PROPULSION ASSEMBLY [patent_app_type] => utility [patent_app_number] => 18/143862 [patent_app_country] => US [patent_app_date] => 2023-05-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15945 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18143862 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/143862
DUAL-MOTOR PROPULSION ASSEMBLY May 4, 2023 Pending
Array ( [id] => 18740471 [patent_doc_number] => 20230349448 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-02 [patent_title] => Drive System [patent_app_type] => utility [patent_app_number] => 18/308197 [patent_app_country] => US [patent_app_date] => 2023-04-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9105 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [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] => 18308197 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/308197
Drive System Apr 26, 2023 Pending
Array ( [id] => 19469034 [patent_doc_number] => 20240322704 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => AC-DC-AC CONVERTER FOR MOTOR DRIVE APPLICATIONS [patent_app_type] => utility [patent_app_number] => 18/188699 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18188699 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/188699
AC-DC-AC CONVERTER FOR MOTOR DRIVE APPLICATIONS Mar 22, 2023 Pending
Array ( [id] => 19469034 [patent_doc_number] => 20240322704 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-26 [patent_title] => AC-DC-AC CONVERTER FOR MOTOR DRIVE APPLICATIONS [patent_app_type] => utility [patent_app_number] => 18/188699 [patent_app_country] => US [patent_app_date] => 2023-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7827 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -25 [patent_words_short_claim] => 42 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18188699 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/188699
AC-DC-AC CONVERTER FOR MOTOR DRIVE APPLICATIONS Mar 22, 2023 Pending
Array ( [id] => 20263400 [patent_doc_number] => 12434371 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-10-07 [patent_title] => Electronic clutch for power tools [patent_app_type] => utility [patent_app_number] => 18/186421 [patent_app_country] => US [patent_app_date] => 2023-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 23 [patent_figures_cnt] => 24 [patent_no_of_words] => 10936 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18186421 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/186421
Electronic clutch for power tools Mar 19, 2023 Issued
Array ( [id] => 18653861 [patent_doc_number] => 20230299703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => ELECTRONIC CONTROL UNIT AND DRIVING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/122708 [patent_app_country] => US [patent_app_date] => 2023-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10886 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18122708 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/122708
Electronic control unit and driving method thereof Mar 16, 2023 Issued
Array ( [id] => 18653861 [patent_doc_number] => 20230299703 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => ELECTRONIC CONTROL UNIT AND DRIVING METHOD THEREOF [patent_app_type] => utility [patent_app_number] => 18/122708 [patent_app_country] => US [patent_app_date] => 2023-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10886 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 67 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18122708 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/122708
Electronic control unit and driving method thereof Mar 16, 2023 Issued
Array ( [id] => 18571263 [patent_doc_number] => 20230261600 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-17 [patent_title] => AIR CONDITIONER AND METHOD FOR DETERMINING ENERGY CONSUMPTION OF AIR CONDITIONER [patent_app_type] => utility [patent_app_number] => 18/116089 [patent_app_country] => US [patent_app_date] => 2023-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12216 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18116089 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/116089
AIR CONDITIONER AND METHOD FOR DETERMINING ENERGY CONSUMPTION OF AIR CONDITIONER Feb 28, 2023 Pending
Array ( [id] => 19253693 [patent_doc_number] => 20240204690 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-20 [patent_title] => SPACE VECTOR PULSE WIDTH MODULATION CONTROL OF THREE-PHASE MULTI-LEVEL INVERTERS [patent_app_type] => utility [patent_app_number] => 18/171929 [patent_app_country] => US [patent_app_date] => 2023-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4305 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18171929 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/171929
SPACE VECTOR PULSE WIDTH MODULATION CONTROL OF THREE-PHASE MULTI-LEVEL INVERTERS Feb 20, 2023 Pending
Array ( [id] => 19253693 [patent_doc_number] => 20240204690 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-20 [patent_title] => SPACE VECTOR PULSE WIDTH MODULATION CONTROL OF THREE-PHASE MULTI-LEVEL INVERTERS [patent_app_type] => utility [patent_app_number] => 18/171929 [patent_app_country] => US [patent_app_date] => 2023-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4305 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18171929 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/171929
SPACE VECTOR PULSE WIDTH MODULATION CONTROL OF THREE-PHASE MULTI-LEVEL INVERTERS Feb 20, 2023 Pending
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