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] => 13806115 [patent_doc_number] => 10180320 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-01-15 [patent_title] => Low cost position sensor and mobility device using the same [patent_app_type] => utility [patent_app_number] => 15/612754 [patent_app_country] => US [patent_app_date] => 2017-06-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 2433 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 304 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15612754 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/612754
Low cost position sensor and mobility device using the same Jun 1, 2017 Issued
Array ( [id] => 13189231 [patent_doc_number] => 10110154 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-10-23 [patent_title] => Controller and a method to drive an inverter circuit for a permanent-magnet synchronous motor [patent_app_type] => utility [patent_app_number] => 15/609824 [patent_app_country] => US [patent_app_date] => 2017-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4164 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 2 [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] => 15609824 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/609824
Controller and a method to drive an inverter circuit for a permanent-magnet synchronous motor May 30, 2017 Issued
Array ( [id] => 12988711 [patent_doc_number] => 20170345288 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 15/607770 [patent_app_country] => US [patent_app_date] => 2017-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8994 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15607770 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/607770
Motor control device and motor control method May 29, 2017 Issued
Array ( [id] => 12295503 [patent_doc_number] => 09935522 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-04-03 [patent_title] => Motor device [patent_app_type] => utility [patent_app_number] => 15/608259 [patent_app_country] => US [patent_app_date] => 2017-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 11016 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 518 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15608259 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/608259
Motor device May 29, 2017 Issued
Array ( [id] => 12712183 [patent_doc_number] => 20180129227 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-05-10 [patent_title] => METHOD FOR ADAPTIVELY DRIVING A STEPPER MOTOR, AND CORRESPONDING DEVICE [patent_app_type] => utility [patent_app_number] => 15/608596 [patent_app_country] => US [patent_app_date] => 2017-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5914 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -28 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15608596 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/608596
Method for adaptively driving a stepper motor, and corresponding device May 29, 2017 Issued
Array ( [id] => 12336474 [patent_doc_number] => 09948160 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-04-17 [patent_title] => Motor device [patent_app_type] => utility [patent_app_number] => 15/608381 [patent_app_country] => US [patent_app_date] => 2017-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 12172 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 375 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15608381 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/608381
Motor device May 29, 2017 Issued
Array ( [id] => 12919636 [patent_doc_number] => 20180198388 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-12 [patent_title] => HIGH EFFICIENCY ACTUATOR FOR USE IN A MOMENTUM CONTROL DEVICE [patent_app_type] => utility [patent_app_number] => 15/608602 [patent_app_country] => US [patent_app_date] => 2017-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4763 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15608602 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/608602
HIGH EFFICIENCY ACTUATOR FOR USE IN A MOMENTUM CONTROL DEVICE May 29, 2017 Abandoned
Array ( [id] => 12096040 [patent_doc_number] => 20170353133 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-12-07 [patent_title] => 'DEVICE AND METHOD FOR SENSING A ROTATIONAL POSITION OF A ROTATABLE ELEMENT, CONTROLLER, SENSOR SYSTEM FOR DETECTING A ROTATIONAL POSITION OF A ROTATABLE ELEMENT, AND HOUSEHOLD APPLIANCE' [patent_app_type] => utility [patent_app_number] => 15/607538 [patent_app_country] => US [patent_app_date] => 2017-05-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 8678 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15607538 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/607538
DEVICE AND METHOD FOR SENSING A ROTATIONAL POSITION OF A ROTATABLE ELEMENT, CONTROLLER, SENSOR SYSTEM FOR DETECTING A ROTATIONAL POSITION OF A ROTATABLE ELEMENT, AND HOUSEHOLD APPLIANCE May 28, 2017 Abandoned
Array ( [id] => 12898306 [patent_doc_number] => 20180191277 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-05 [patent_title] => BRUSHLESS SERVO [patent_app_type] => utility [patent_app_number] => 15/607477 [patent_app_country] => US [patent_app_date] => 2017-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1617 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15607477 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/607477
Brushless servo May 26, 2017 Issued
Array ( [id] => 12991903 [patent_doc_number] => 20170346421 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => Motor Driving Circuit, Motor Driving Method, and Motor Utilizing the Same [patent_app_type] => utility [patent_app_number] => 15/606545 [patent_app_country] => US [patent_app_date] => 2017-05-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10363 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15606545 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/606545
Motor driving circuit, motor driving method, and motor utilizing the same May 25, 2017 Issued
Array ( [id] => 12991936 [patent_doc_number] => 20170346433 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-11-30 [patent_title] => SYSTEMS AND METHODS OF OPTIMIZING OPERATION EFFICIENCY OF A MOTOR DRIVE [patent_app_type] => utility [patent_app_number] => 15/605161 [patent_app_country] => US [patent_app_date] => 2017-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8847 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15605161 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/605161
Systems and methods of optimizing operation efficiency of a motor drive May 24, 2017 Issued
Array ( [id] => 12517470 [patent_doc_number] => 10003294 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-06-19 [patent_title] => Control apparatus of rotary electric machine and electric power steering apparatus using the same [patent_app_type] => utility [patent_app_number] => 15/605718 [patent_app_country] => US [patent_app_date] => 2017-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 19 [patent_no_of_words] => 13641 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 252 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15605718 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/605718
Control apparatus of rotary electric machine and electric power steering apparatus using the same May 24, 2017 Issued
Array ( [id] => 12377478 [patent_doc_number] => 09960726 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-05-01 [patent_title] => Electric drive power converter with low distortion dead-time insertion [patent_app_type] => utility [patent_app_number] => 15/605044 [patent_app_country] => US [patent_app_date] => 2017-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 4333 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 76 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15605044 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/605044
Electric drive power converter with low distortion dead-time insertion May 24, 2017 Issued
Array ( [id] => 16925098 [patent_doc_number] => 11046559 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-06-29 [patent_title] => Lifting device and method for operating a lifting device [patent_app_type] => utility [patent_app_number] => 16/302705 [patent_app_country] => US [patent_app_date] => 2017-05-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 2 [patent_no_of_words] => 6253 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 188 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16302705 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/302705
Lifting device and method for operating a lifting device May 15, 2017 Issued
Array ( [id] => 13206729 [patent_doc_number] => 10117714 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-06 [patent_title] => Software center and highly configurable robotic systems for surgery and other uses [patent_app_type] => utility [patent_app_number] => 15/488173 [patent_app_country] => US [patent_app_date] => 2017-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 48 [patent_no_of_words] => 23771 [patent_no_of_claims] => 31 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15488173 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/488173
Software center and highly configurable robotic systems for surgery and other uses Apr 13, 2017 Issued
Array ( [id] => 13884933 [patent_doc_number] => 10194998 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-02-05 [patent_title] => Software center and highly configurable robotic systems for surgery and other uses [patent_app_type] => utility [patent_app_number] => 15/488219 [patent_app_country] => US [patent_app_date] => 2017-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 48 [patent_no_of_words] => 23801 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 172 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15488219 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/488219
Software center and highly configurable robotic systems for surgery and other uses Apr 13, 2017 Issued
Array ( [id] => 13220169 [patent_doc_number] => 10123844 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-11-13 [patent_title] => Software center and highly configurable robotic systems for surgery and other uses [patent_app_type] => utility [patent_app_number] => 15/488227 [patent_app_country] => US [patent_app_date] => 2017-04-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 27 [patent_figures_cnt] => 48 [patent_no_of_words] => 23775 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 115 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15488227 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/488227
Software center and highly configurable robotic systems for surgery and other uses Apr 13, 2017 Issued
Array ( [id] => 14673205 [patent_doc_number] => 10374529 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-08-06 [patent_title] => Electric drive system and energy management method [patent_app_type] => utility [patent_app_number] => 15/453218 [patent_app_country] => US [patent_app_date] => 2017-03-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 7467 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 156 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15453218 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/453218
Electric drive system and energy management method Mar 7, 2017 Issued
Array ( [id] => 11967860 [patent_doc_number] => 20170272013 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-09-21 [patent_title] => 'MOTOR CONTROLLER' [patent_app_type] => utility [patent_app_number] => 15/444504 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2535 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15444504 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/444504
Motor controller Feb 27, 2017 Issued
Array ( [id] => 11946492 [patent_doc_number] => 20170250643 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-08-31 [patent_title] => 'MOTOR CONTROL DEVICE INCLUDING TORQUE COMMAND LIMIT UNIT' [patent_app_type] => utility [patent_app_number] => 15/443116 [patent_app_country] => US [patent_app_date] => 2017-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 5717 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15443116 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/443116
Motor control device including torque command limit unit Feb 26, 2017 Issued
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