Search

Kawing Chan

Examiner (ID: 4339, Phone: (571)270-3909 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
2846, 2837, 4147
Total Applications
954
Issued Applications
690
Pending Applications
56
Abandoned Applications
235

Applications

Application numberTitle of the applicationFiling DateStatus
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] => 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] => 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] => 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
Array ( [id] => 18363576 [patent_doc_number] => 20230145167 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-05-11 [patent_title] => TORQUE RIPPLE COMPENSATION IN A MOTOR CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 17/916390 [patent_app_country] => US [patent_app_date] => 2020-04-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4146 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17916390 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/916390
Torque ripple compensation in a motor control system Mar 31, 2020 Issued
Array ( [id] => 17746245 [patent_doc_number] => 11394335 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-07-19 [patent_title] => Sensor-less motor reversal apparatus [patent_app_type] => utility [patent_app_number] => 16/835072 [patent_app_country] => US [patent_app_date] => 2020-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 17 [patent_figures_cnt] => 17 [patent_no_of_words] => 21959 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 253 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16835072 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/835072
Sensor-less motor reversal apparatus Mar 29, 2020 Issued
Array ( [id] => 17757126 [patent_doc_number] => 11397418 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-26 [patent_title] => Methods and apparatus for an encoder [patent_app_type] => utility [patent_app_number] => 16/828008 [patent_app_country] => US [patent_app_date] => 2020-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 7214 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16828008 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/828008
Methods and apparatus for an encoder Mar 23, 2020 Issued
Array ( [id] => 17616301 [patent_doc_number] => 20220158581 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-19 [patent_title] => MOTOR CONTROLLER, MOTOR SYSTEM AND METHOD FOR CONTROLLING MOTOR [patent_app_type] => utility [patent_app_number] => 17/440295 [patent_app_country] => US [patent_app_date] => 2020-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9698 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [patent_words_short_claim] => 243 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17440295 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/440295
Motor controller, motor system and method for controlling motor Mar 22, 2020 Issued
Array ( [id] => 18263993 [patent_doc_number] => 11611704 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-03-21 [patent_title] => Motor controller [patent_app_type] => utility [patent_app_number] => 16/821973 [patent_app_country] => US [patent_app_date] => 2020-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 1474 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16821973 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/821973
Motor controller Mar 16, 2020 Issued
Array ( [id] => 16296846 [patent_doc_number] => 20200282569 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-09-10 [patent_title] => THROWABLE ROBOT WITH IMPROVED DRIVE SYSTEM [patent_app_type] => utility [patent_app_number] => 16/821499 [patent_app_country] => US [patent_app_date] => 2020-03-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5489 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16821499 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/821499
Throw able robot with improved drive system Mar 16, 2020 Issued
Array ( [id] => 18457154 [patent_doc_number] => 20230198436 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-06-22 [patent_title] => PREDICTIVE TORQUE CONTROL AND CAPACITOR BALANCING OF A SILICONCARBIDE BASED DUAL T-TYPE DRIVE SYSTEM [patent_app_type] => utility [patent_app_number] => 16/814137 [patent_app_country] => US [patent_app_date] => 2020-03-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15168 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16814137 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/814137
Predictive torque control and capacitor balancing of a silicon-carbide based dual t-type drive system Mar 9, 2020 Issued
Array ( [id] => 17631343 [patent_doc_number] => 20220166358 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-26 [patent_title] => METHOD FOR THE NOISE-REDUCED OPERATION OF A SWITCHED RELUCTANCE MOTOR [patent_app_type] => utility [patent_app_number] => 17/431964 [patent_app_country] => US [patent_app_date] => 2020-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3214 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -1 [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] => 17431964 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/431964
METHOD FOR THE NOISE-REDUCED OPERATION OF A SWITCHED RELUCTANCE MOTOR Feb 26, 2020 Abandoned
Array ( [id] => 17583914 [patent_doc_number] => 20220140769 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-05-05 [patent_title] => Motor Control Apparatus for Controlling a Power Supply to an Electrical Motor [patent_app_type] => utility [patent_app_number] => 17/431628 [patent_app_country] => US [patent_app_date] => 2020-02-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13145 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -24 [patent_words_short_claim] => 366 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17431628 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/431628
Motor control apparatus for controlling a power supply to an electrical motor Feb 19, 2020 Issued
Array ( [id] => 16251312 [patent_doc_number] => 20200260686 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-08-20 [patent_title] => ANIMAL FEEDING ROBOT WHICH STIMULATES OLFACTORY SENSE OF ANIMAL [patent_app_type] => utility [patent_app_number] => 16/787176 [patent_app_country] => US [patent_app_date] => 2020-02-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7667 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -4 [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] => 16787176 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/787176
ANIMAL FEEDING ROBOT WHICH STIMULATES OLFACTORY SENSE OF ANIMAL Feb 10, 2020 Abandoned
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