Search

David S. Luo

Examiner (ID: 15082, Phone: (571)270-5251 , Office: P/2837 )

Most Active Art Unit
2837
Art Unit(s)
2837, 2846, 4192
Total Applications
1873
Issued Applications
1731
Pending Applications
70
Abandoned Applications
118

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18821858 [patent_doc_number] => 20230396199 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-12-07 [patent_title] => POWER TOOL [patent_app_type] => utility [patent_app_number] => 18/455108 [patent_app_country] => US [patent_app_date] => 2023-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15051 [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] => 18455108 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/455108
Power tool Aug 23, 2023 Issued
Array ( [id] => 19951709 [patent_doc_number] => 12323084 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-03 [patent_title] => Power tool [patent_app_type] => utility [patent_app_number] => 18/454246 [patent_app_country] => US [patent_app_date] => 2023-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 10 [patent_no_of_words] => 1240 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 177 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18454246 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/454246
Power tool Aug 22, 2023 Issued
Array ( [id] => 20147153 [patent_doc_number] => 12381502 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-08-05 [patent_title] => Home appliance including motor and control method for home appliance [patent_app_type] => utility [patent_app_number] => 18/236110 [patent_app_country] => US [patent_app_date] => 2023-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 7456 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 131 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18236110 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/236110
Home appliance including motor and control method for home appliance Aug 20, 2023 Issued
Array ( [id] => 18991776 [patent_doc_number] => 20240063745 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => BOOSTED ROTOR SUPPLY CIRCUIT AND METHOD FOR IMPROVING PULSED ELECTRIC MACHINE EFFICIENCY [patent_app_type] => utility [patent_app_number] => 18/452363 [patent_app_country] => US [patent_app_date] => 2023-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 6797 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -21 [patent_words_short_claim] => 109 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18452363 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/452363
Boosted rotor supply circuit and method for improving pulsed electric machine efficiency Aug 17, 2023 Issued
Array ( [id] => 20132704 [patent_doc_number] => 12375022 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-29 [patent_title] => Power tool including current-based field weakening [patent_app_type] => utility [patent_app_number] => 18/356026 [patent_app_country] => US [patent_app_date] => 2023-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 33 [patent_figures_cnt] => 36 [patent_no_of_words] => 8120 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18356026 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/356026
Power tool including current-based field weakening Jul 19, 2023 Issued
Array ( [id] => 19918937 [patent_doc_number] => 12294323 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-05-06 [patent_title] => Method for pre-positioning rotor of outdoor fan in high-speed counter-rotation state before operation [patent_app_type] => utility [patent_app_number] => 18/221869 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 278 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18221869 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/221869
Method for pre-positioning rotor of outdoor fan in high-speed counter-rotation state before operation Jul 12, 2023 Issued
Array ( [id] => 19972821 [patent_doc_number] => 12341445 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-24 [patent_title] => Position observer synchronization for three-phase generators [patent_app_type] => utility [patent_app_number] => 18/221758 [patent_app_country] => US [patent_app_date] => 2023-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 16 [patent_no_of_words] => 4432 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18221758 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/221758
Position observer synchronization for three-phase generators Jul 12, 2023 Issued
Array ( [id] => 19980674 [patent_doc_number] => 12348165 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-01 [patent_title] => Method for control of an externally excited electric machine of a motor vehicle, and the motor vehicle [patent_app_type] => utility [patent_app_number] => 18/351403 [patent_app_country] => US [patent_app_date] => 2023-07-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 1 [patent_no_of_words] => 0 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18351403 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/351403
Method for control of an externally excited electric machine of a motor vehicle, and the motor vehicle Jul 11, 2023 Issued
Array ( [id] => 19157232 [patent_doc_number] => 20240149939 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-05-09 [patent_title] => APPARATUS FOR AND METHOD OF RESTRICTING ROTATION OF STEERING WHEEL IN STEER-BY-WIRE SYSTEM [patent_app_type] => utility [patent_app_number] => 18/350283 [patent_app_country] => US [patent_app_date] => 2023-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7025 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 66 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18350283 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/350283
Apparatus for and method of restricting rotation of steering wheel in steer-by-wire system Jul 10, 2023 Issued
Array ( [id] => 19627589 [patent_doc_number] => 12166447 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-12-10 [patent_title] => Electronic braking in a power tool [patent_app_type] => utility [patent_app_number] => 18/346529 [patent_app_country] => US [patent_app_date] => 2023-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 6655 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18346529 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/346529
Electronic braking in a power tool Jul 2, 2023 Issued
Array ( [id] => 18921046 [patent_doc_number] => 20240024050 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-25 [patent_title] => ROBOTIC SURGICAL SYSTEM WITH CABLE CONNECTION DETECTION [patent_app_type] => utility [patent_app_number] => 18/334487 [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] => 6986 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334487 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/334487
ROBOTIC SURGICAL SYSTEM WITH CABLE CONNECTION DETECTION Jun 13, 2023 Pending
Array ( [id] => 19407898 [patent_doc_number] => 20240291409 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-29 [patent_title] => NONLINEAR PREDICTIVE POSITION CONTROL METHOD SUITABLE FOR BIAXIAL PERMANENT MAGNET SERVO SYSTEM [patent_app_type] => utility [patent_app_number] => 18/573413 [patent_app_country] => US [patent_app_date] => 2023-06-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4122 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 132 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18573413 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/573413
NONLINEAR PREDICTIVE POSITION CONTROL METHOD SUITABLE FOR BIAXIAL PERMANENT MAGNET SERVO SYSTEM Jun 6, 2023 Pending
Array ( [id] => 18808115 [patent_doc_number] => 20230382448 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-30 [patent_title] => Steer by Wire System for Operating Steering Wheel and Steering Column [patent_app_type] => utility [patent_app_number] => 18/324958 [patent_app_country] => US [patent_app_date] => 2023-05-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2347 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18324958 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/324958
Steer by wire system for operating steering wheel and steering column May 26, 2023 Issued
Array ( [id] => 18697746 [patent_doc_number] => 20230328211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => ROBOTICALLY CONTROLLED SPEAKERS [patent_app_type] => utility [patent_app_number] => 18/201922 [patent_app_country] => US [patent_app_date] => 2023-05-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12931 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18201922 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/201922
Robotically controlled speakers May 24, 2023 Issued
Array ( [id] => 19812841 [patent_doc_number] => 12244256 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-03-04 [patent_title] => Noise limited power tools and equipment [patent_app_type] => utility [patent_app_number] => 18/135532 [patent_app_country] => US [patent_app_date] => 2023-04-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 9221 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18135532 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/135532
Noise limited power tools and equipment Apr 16, 2023 Issued
Array ( [id] => 18713469 [patent_doc_number] => 20230336105 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-19 [patent_title] => TECHNIQUE FOR PROTECTING MOTOR IN ELECTRIC WORK MACHINE FROM OVER TEMPERATURE [patent_app_type] => utility [patent_app_number] => 18/134309 [patent_app_country] => US [patent_app_date] => 2023-04-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 22172 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 127 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18134309 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/134309
Technique for protecting motor in electric work machine from over temperature Apr 12, 2023 Issued
Array ( [id] => 18541460 [patent_doc_number] => 20230246576 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-08-03 [patent_title] => AUTO-BRAKING FOR AN ELECTROMAGNETIC MACHINE [patent_app_type] => utility [patent_app_number] => 18/132594 [patent_app_country] => US [patent_app_date] => 2023-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 33633 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 97 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18132594 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/132594
Auto-braking for an electromagnetic machine Apr 9, 2023 Issued
Array ( [id] => 18893453 [patent_doc_number] => 20240008938 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-11 [patent_title] => Robotic Surgical Devices, Systems and Related Methods [patent_app_type] => utility [patent_app_number] => 18/194723 [patent_app_country] => US [patent_app_date] => 2023-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 8300 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18194723 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/194723
Robotic surgical devices, systems and related methods Apr 2, 2023 Issued
Array ( [id] => 18533832 [patent_doc_number] => 20230238909 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-07-27 [patent_title] => EXTERNAL ADJUSTMENT OF A DRIVE CONTROL OF A SWITCH [patent_app_type] => utility [patent_app_number] => 18/128885 [patent_app_country] => US [patent_app_date] => 2023-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13095 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -23 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18128885 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/128885
External adjustment of a drive control of a switch Mar 29, 2023 Issued
Array ( [id] => 19766370 [patent_doc_number] => 12224678 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-02-11 [patent_title] => Power converter and heat pump system provided therewith [patent_app_type] => utility [patent_app_number] => 18/126892 [patent_app_country] => US [patent_app_date] => 2023-03-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 31 [patent_no_of_words] => 9906 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 219 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18126892 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/126892
Power converter and heat pump system provided therewith Mar 26, 2023 Issued
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