Search

Kawing Chan

Examiner (ID: 16994, Phone: (571)270-3909 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
2846, 2837, 4147
Total Applications
964
Issued Applications
695
Pending Applications
55
Abandoned Applications
235

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 20413993 [patent_doc_number] => 12497263 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-16 [patent_title] => Elevator calling coordination for robots and individuals [patent_app_type] => utility [patent_app_number] => 17/100538 [patent_app_country] => US [patent_app_date] => 2020-11-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 5997 [patent_no_of_claims] => 18 [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] => 17100538 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/100538
Elevator calling coordination for robots and individuals Nov 19, 2020 Issued
Array ( [id] => 20389645 [patent_doc_number] => 12489383 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-12-02 [patent_title] => Method and system for calibrating a control device of an electric motor [patent_app_type] => utility [patent_app_number] => 17/776474 [patent_app_country] => US [patent_app_date] => 2020-11-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 10 [patent_no_of_words] => 2520 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17776474 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/776474
Method and system for calibrating a control device of an electric motor Nov 12, 2020 Issued
Array ( [id] => 18624320 [patent_doc_number] => 11757382 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-09-12 [patent_title] => Motor control system, method of operating a motor control system and aircraft [patent_app_type] => utility [patent_app_number] => 17/086961 [patent_app_country] => US [patent_app_date] => 2020-11-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 19 [patent_no_of_words] => 7375 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 227 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17086961 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/086961
Motor control system, method of operating a motor control system and aircraft Nov 1, 2020 Issued
Array ( [id] => 16617984 [patent_doc_number] => 20210036637 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-04 [patent_title] => BRUSHLESS DC MOTOR CONTROL UNIT [patent_app_type] => utility [patent_app_number] => 17/075640 [patent_app_country] => US [patent_app_date] => 2020-10-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6097 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 358 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17075640 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/075640
BRUSHLESS DC MOTOR CONTROL UNIT Oct 19, 2020 Abandoned
Array ( [id] => 17533441 [patent_doc_number] => 20220112050 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-14 [patent_title] => ELEVATOR SYSTEM FLOOR HEIGHT MAPPING [patent_app_type] => utility [patent_app_number] => 17/070003 [patent_app_country] => US [patent_app_date] => 2020-10-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6473 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 142 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17070003 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/070003
ELEVATOR SYSTEM FLOOR HEIGHT MAPPING Oct 13, 2020 Pending
Array ( [id] => 16761795 [patent_doc_number] => 20210107376 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-04-15 [patent_title] => ON-BOARD ELECTRICAL SYSTEM AND METHOD FOR OPERATING AN ON-BOARD NETWORK [patent_app_type] => utility [patent_app_number] => 17/066780 [patent_app_country] => US [patent_app_date] => 2020-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3781 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 173 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17066780 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/066780
On-board electrical system and method for operating an on-board network Oct 8, 2020 Issued
Array ( [id] => 17519965 [patent_doc_number] => 20220105813 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-04-07 [patent_title] => ELECTRIC VEHICLE SOUND ENHANCEMENT [patent_app_type] => utility [patent_app_number] => 17/061921 [patent_app_country] => US [patent_app_date] => 2020-10-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5622 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17061921 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/061921
Electric vehicle sound enhancement Oct 1, 2020 Issued
Array ( [id] => 16823980 [patent_doc_number] => 20210139273 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-13 [patent_title] => WIRELESS POWER TRANSFER ARRANGEMENT, ELEVATOR, AND METHOD FOR TRANSFERRING POWER WIRELESSLY IN AN ELEVATOR [patent_app_type] => utility [patent_app_number] => 17/038360 [patent_app_country] => US [patent_app_date] => 2020-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6699 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 149 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17038360 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/038360
WIRELESS POWER TRANSFER ARRANGEMENT, ELEVATOR, AND METHOD FOR TRANSFERRING POWER WIRELESSLY IN AN ELEVATOR Sep 29, 2020 Pending
Array ( [id] => 17081821 [patent_doc_number] => 20210276827 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-09-09 [patent_title] => ELEVATOR CONTROL METHOD, APPARATUS, ELECTRONIC DEVICE, STORAGE MEDIUM AND SYSTEM [patent_app_type] => utility [patent_app_number] => 17/036772 [patent_app_country] => US [patent_app_date] => 2020-09-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16333 [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] => 17036772 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/036772
Elevator control method, apparatus, electronic device, storage medium and system Sep 28, 2020 Issued
Array ( [id] => 18220027 [patent_doc_number] => 11594984 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-28 [patent_title] => Control apparatus for vibration motor, vibration apparatus having the same, and control method of vibration motor [patent_app_type] => utility [patent_app_number] => 17/030067 [patent_app_country] => US [patent_app_date] => 2020-09-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 18 [patent_no_of_words] => 9093 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17030067 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/030067
Control apparatus for vibration motor, vibration apparatus having the same, and control method of vibration motor Sep 22, 2020 Issued
Array ( [id] => 20372275 [patent_doc_number] => 12479697 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-11-25 [patent_title] => Communication solution for an elevator system [patent_app_type] => utility [patent_app_number] => 17/022326 [patent_app_country] => US [patent_app_date] => 2020-09-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 1302 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [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] => 17022326 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/022326
Communication solution for an elevator system Sep 15, 2020 Issued
Array ( [id] => 19445102 [patent_doc_number] => 12095398 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-17 [patent_title] => Electric drive unit, method for operating an electric drive unit and method for calculating temperature [patent_app_type] => utility [patent_app_number] => 17/637544 [patent_app_country] => US [patent_app_date] => 2020-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 2645 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17637544 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/637544
Electric drive unit, method for operating an electric drive unit and method for calculating temperature Aug 4, 2020 Issued
Array ( [id] => 17918649 [patent_doc_number] => 20220321045 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-10-06 [patent_title] => METHOD FOR DETERMINING A ROTOR POSITION OF AN ELECTRIC MOTOR OF A POWER TOOL AND POWER TOOL [patent_app_type] => utility [patent_app_number] => 17/634109 [patent_app_country] => US [patent_app_date] => 2020-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5007 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [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] => 17634109 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/634109
METHOD FOR DETERMINING A ROTOR POSITION OF AN ELECTRIC MOTOR OF A POWER TOOL AND POWER TOOL Jul 20, 2020 Abandoned
Array ( [id] => 16672031 [patent_doc_number] => 20210060794 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-03-04 [patent_title] => ROBOT SYSTEM [patent_app_type] => utility [patent_app_number] => 16/934393 [patent_app_country] => US [patent_app_date] => 2020-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2928 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16934393 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/934393
Robot system Jul 20, 2020 Issued
Array ( [id] => 18246273 [patent_doc_number] => 11602838 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-03-14 [patent_title] => Process and system for monitoring backlash in a gear of a joint of an industrial robot [patent_app_type] => utility [patent_app_number] => 16/924419 [patent_app_country] => US [patent_app_date] => 2020-07-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 5 [patent_no_of_words] => 2467 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 162 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16924419 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/924419
Process and system for monitoring backlash in a gear of a joint of an industrial robot Jul 8, 2020 Issued
Array ( [id] => 17816904 [patent_doc_number] => 11422511 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-08-23 [patent_title] => Step motor drive device and circuit [patent_app_type] => utility [patent_app_number] => 16/914498 [patent_app_country] => US [patent_app_date] => 2020-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 38 [patent_figures_cnt] => 38 [patent_no_of_words] => 34912 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16914498 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/914498
Step motor drive device and circuit Jun 28, 2020 Issued
Array ( [id] => 18294645 [patent_doc_number] => 20230104331 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-04-06 [patent_title] => Power Conversion Device and Control Method Thereof [patent_app_type] => utility [patent_app_number] => 17/911175 [patent_app_country] => US [patent_app_date] => 2020-05-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4573 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [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] => 17911175 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/911175
Power conversion device and control method thereof May 7, 2020 Issued
Array ( [id] => 17700772 [patent_doc_number] => 11374508 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-06-28 [patent_title] => Electric drive system and energy management method [patent_app_type] => utility [patent_app_number] => 16/866028 [patent_app_country] => US [patent_app_date] => 2020-05-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7466 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 206 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16866028 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/866028
Electric drive system and energy management method May 3, 2020 Issued
Array ( [id] => 16242205 [patent_doc_number] => 20200259439 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-13 [patent_title] => SYNCHRONOUS MOTOR DRIVE SYSTEM AND SYNCHRONOUS MOTOR DRIVE METHOD [patent_app_type] => utility [patent_app_number] => 16/857023 [patent_app_country] => US [patent_app_date] => 2020-04-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 16713 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 51 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16857023 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/857023
Synchronous motor drive system and synchronous motor drive method Apr 22, 2020 Issued
Array ( [id] => 18128479 [patent_doc_number] => 11554676 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-01-17 [patent_title] => Motor device [patent_app_type] => utility [patent_app_number] => 16/843652 [patent_app_country] => US [patent_app_date] => 2020-04-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 14 [patent_no_of_words] => 6858 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 199 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16843652 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/843652
Motor device Apr 7, 2020 Issued
Menu